SECTION volt electrical system

Transcription

1 / 1 SECION JA12 ELECRICAL CIRCUIS CAUION: Nova LFS buses, using the V-BEA multiplexing system, are equipped with a 24-volt, negativeground electrical circuit. DO NO inverse the polarities while using an auxiliary battery as a backup power source; it could seriously damage the alternator, the voltage regulator, the batteries and the battery cables. DO NO use the alternator s DC (direct current) terminal. A connector, used for the connection of the emergency auxiliary batteries, is available in the engine compartment, at the rear of the vehicle. CAUION: Before removing, dismantling or maintaining any electrical component, the electrician should take the necessary precautions to avoid any risk of personal injury or damage to the equipment. If necessary, mark all wiring prior to disconnecting, to facilitate reconnection. See the provided coach wiring diagram for further details on electrical circuit power cut-off points. coach WIRING DIAGRA he electrical circuit subdivides into several separate circuits, where each system is classified according to its function. A coach wiring diagram is provided with each customer order. It is also recommended to read this section in conjunction with section : v-bea (volvo - bus electronic architecture) (multiplex) system, since many of the electrical functions are handled through the v-bea. All cables routing from the electrical equipment box to the engine compartment are covered with black heat-resistant tape. o facilitate the connection, a label near each cable end bears the number or abbreviation of the terminal to which it is connected. CIRCUI ESING he coach wiring diagram should be carefully studied in order to identify current source and flow through each electrical circuit. Once a circuit is thoroughly understood, a point-to-point check can be made using the applicable wiring diagram to determine where a failure occurred. Electrical connections Electric circuit connections are obtained by the means of multiport plugs and terminal boards. he letters on the plugs and outlets correspond to the letters shown in the electric diagrams. he plugs are provided with locating pins, which ensure a good connection between a plug and a jack. All electrical connections should be kept clean and properly tightened. Loose or corroded connections will cause battery discharge, difficult starting and faulty operation of other circuits. Examine all cable connections regularly. ake sure all nuts on all electrical plugs and connectors are securely tight. he fastening screws for the wiring harness connectors must be tightened to a torque value of 6 lb-ft (8 N m). CAUION: A different torque value must be applied to the following harness connectors: Allison transmission harness connector. If equipped with this transmission, see section 10: allison transmission in this manual for the recommended torque. Engine harness connector. See section 09: engine and accessories in this manual for the recommended torque values. NOE: Ensure that the terminals are well seated before applying the torque to the connector screw.

2 2011JA12 2 / Engine COPAREN DOOR connection he engine wiring harness of the compartment door, which supports the circuits to the stoplights, turn signal lights, taillights and license plate lamp, is connected to the electrical multiplex modules through an electrical connection located in the engine compartment. Operator s control panel connections For more information on components and electrical connections in the operator s control panel, see the coach wiring diagram. BAERY CONNECIONS Battery cable connections are found at various locations on the vehicle. he cables follow the wall behind the operator and wind their way into the ceiling on the left side towards the engine compartment. Grounding cables are positioned along the vehicle, between the roof unit and the structure of the bus. Other connections are located in the battery compartment and near the power steering gearbox. he other connection cables lie in the engine compartment. he battery cables, which feed current to various vehicle parts for electrical system and component operation, are linked to these connections. All connections should be kept clean and securely tight. If they are corroded, disconnect the cables and thoroughly clean the cable ends and connecting studs. Connect the cables to the studs and firmly tighten the stud nuts. Panels in the operator s area NOE: See the Nova Bus operator s manual for more information on the instrument panel s various indicators, warning lights and audible signals. CAUION: Before removing, dismantling or maintaining any electrical component, the electrician should take the necessary precautions to avoid any risk of personal injury or damage to the equipment. See the provided coach wiring diagram for further details on electrical circuit power cut-off points. INDICAOR AND WARNING LIGH PANEL See Figure 1. he indicator and warning light panel is mounted directly in front of the operator. he indicator and warning lights are arranged in two panels in the upper center of the instrument panel. Lamps within the dials and indicator housings illuminate the various indicator and warning light faceplates as well as the speedometer and pressure gauge dials. he symbols on the warning lights are visible only when the lamps light up. For more information regarding the symbols in this panel, see the operator s manual. For more information on the operation and the functionality of the gauges of this panel, see the heading actia instrumentation of this section. 4 1/2 C H E F AC 1 ABS 2 NOVABUS PRIARY SECONDARY DO NO OPERAE UNDER 80 PSI AIR PRESSURE Km/h mph NOVABUS tell-tale (INDICAORS AND WARNING) LIGHS 2. PRESSURE GAUGE 3. SPEEDOEER (aster Gauge) 4. next stop 5. SLAVE GAUGES Figure 1 - ypical Indicator and Warning Light Panel

3 / JA12 OVERHEAD CONROL PANEL See Figure 2. he operator s manual explains the significance of the symbols on the overhead panel and how they operate. For more information on the components and connections of the overhead control panel, see the coach wiring diagram. Operator S SIDE CONROL PANEL See Figure 3. he switches used by the operator for normal vehicle operation are located on the side control panel on the left-hand side of the operator. aster control SWICH he master control switch panel bears symbols that allow quick identification of the required function. he chosen circuits activate when the switch is turned so that the arrow on the knob aligns with the symbol on the panel. In some cases, the master control switch only provides power to a circuit controlled by another switch or relay. he operator s manual specifies the switch positions and the circuits each one controls. Operator'S UPPER LEF COPAREN Located above the operator s window, this compartment may contain a radio module with turnkey switch, a buzzer that sounds when the emergency unlocking control is enabled, and an emergency unlocking system reset switch. hese components are accessed by giving the compartment door handles a quarter turn and lifting the swingout door. See the coach wiring diagram for additional information on these components electrical circuits. CAUION: Push the release button to manually release a circuit breaker before working on the auxiliary terminals and thus prevent any possible short circuit. 1. SIDE CONSOLE 2. PNEUAIC CONROLS 3. aster Control switch 1 switches 3 > > > > > > > > 2 NOE: See the operator s manual for more information on the switches. Figure 2 - ypical Overhead Control Panel Figure 3 - ypical Operator s Side Control Panel

4 2011JA12 4 / Actia instrumentation he indicator and warning light panel is connected via J1939 to the ACIA control. See section : v-bea (volvo - bus electronic architecture) for additional information. he system architecture is based on the master/slave model. he speedometer, or aster Gauge (Figure 4), is located on the instrument panel and indicates the speed of the vehicle, as well as other important operating and maintenance information through a message display center. he message display is a graphical, backlit LCD that displays information to the vehicle operator. he aster Gauge includes all communications, power supply, memory, display, and associated electronics to control the system. he slave devices receive power and communications from the master device. he slave gauge devices display multiple parameters as described throughout this document. he slave gauges are: he indicator lights he air-pressure indicator he 12 and 24-voltmeters (Optional) he fuel-level indicator (Optional) he coolant-temperature indicator (Optional) he brake air-pressure gauge (Optional) Additionally, there is a rear indicator that is similar to the standard aster Gauge. However, this operates independently from the instrument panel and, wherever necessary, must be programmed separately. See Figure 5. he rear gauge Power rain essage Center, with incorporated tachometer, displays a number of the functions included in the aster Gauge speed indicator on the dashboard. he Power rain essage Center, however, is an independent master display and can read all parameters associated with the engine compartment. he Power rain essage Center displays engine revolutions up to 3000 RP, over a 230-degree sweep. If the J-1939 message is not received within three seconds, the needle fluctuates. Under normal operation, the gauge s display receives a series of messages, using the J-1939 protocol, from the dashboard aster Gauge, and displays the calculated values on the upper and lower lines of the engine-oil pressure gauge. One important display feature is the low coolant indicator, which can be accessed during verification and replenishment of the cooling system, to ensure accurate quantities. In addition to a message on the display, the complete gauge will flash when the coolant is low. By selecting the required directory, you can gain access to graphical representations of messages on the LCD, similar to that on the instrument panel Km/h mph RP X ESSAGE DISPLAY CENER Figure 4 - aster Gauge on Dash (ypical) Figure 5 - Rear Gauge in Engine Compartment

5 / JA12 odes of Operation See Figure 6. Gauges When the master control switch is engaged in run or lights position, the gauge pointers will move to the zero position. he pointers will then sweep across the scale, pausing at half scale, before completing the sweep to full scale. he pointers will then return to zero before moving to the designated position. LCD When the master control switch is engaged in run or lights position, the LCD will turn all of its segments off for one second and then display an opening message, during the up-scale sweep of the pointers. he opening message is the Nova Bus or customer logo. Limited ode he aster Gauge will operate in limited mode when the ignition is off, but other input signals require the aster Gauge to be operational. he right and left turn icons are operational even with the ignition off, when the hazard lights are turned on. start-up ode See Figure 7. he aster Gauge enters start-up mode when the ignition is switched on (V-BEA module ID: 42-30). he ignition binary input is used to sense if the key switch is on or off. he aster Gauge will determine which data bus is connected and which devices are present. Error messages will display if a data bus is missing or a device that had been previously found is subsequently missing. + NOE: he pointer might continue to sweep the upscale if one of the communication links is missing. Communication Warning Lights Starting at the up-scale pointer sweep, all warning lights will turn on for five seconds and then go out for one second before being activated by their respective inputs. Active warning lights will light up when the gauges go to their designated position. his activity represents a complete calibration of the Actia system. CLUSER INIIALIZAION AND SELF-ES ES A URN-ON OR PRESSED? HAZARDS AND NO IGNIION SLEEPING ODE END LIIED ODE LIIED ODE NO IGNIION IGNIION SAR UP ODE SAR UP COPLEED NO IGNIION IGNIION ODE DIAGNOSIC REQUES SELF DIAGNOSIC ODE DISPLAY SELF-ES FAUL ESSAGES DURING 2-SECS, IF PRESEN END DIAGNOSIC Figure 6 - odes of Operation Figure 7 - Start-Up ode

6 2011JA12 6 / At start-up, the instrument panel will go through the selftest for tell-tales and gauges. Once the self-test is complete, the message display center will indicate the distance travelled on the upper line. During this start-up sequence, pressing the and buttons at the same time will give details of the Actia version number installed km WAI O SAR Settings and Diagnostics o obtain diagnostic information: 1. Apply the parking brake, and 2. Deactivate the maintenance switch in the overhead left console (if switched on) 3. Press the m button for approximately six seconds he following screen will be displayed. Item Description 1 Set Units 2 Contrast 3 Instrument Diag. 4 Engine Fault 5 Eng. Hist. Fault 6 Clear Eng. Fault 7 rans. Faults 8 rans. Hist. Fault 9 Clear rans. Fault 10 ABS Faults 11 ABS Hist. Fault 12 Clear ABS Fault 13 Read Param 14 Ramp Count (optional) 15 Brake State 16 Bus Outputs est 17 Bus Inputs est 18 BEA ux. state able 1 - enu Selection List 1 - Set Units 2 - Contrast 3 - Instrument Diag SELEC Item: 1 Set Units Select item 1 to display the set units menu. his allows you to choose whether values are displayed in etric or Imperial (English) units. he item highlighted in reverse video will be selected when both the and buttons are pressed at the same time. Pressing the or buttons separately, representing the up and down arrows, will move the highlight through the list. here are 18 items in this menu, which are detailed as follows. Also, see able 1 for a list of these items. Current Units ENGLISH Press t for ERIC Press m to Exit + NOE: Items 14 ramp counter, 16 bus output test and 17 bus input test are not displayed on the rear engine compartment gauge Item: 2 Contrast Select item 2 to display the contrast menu. o increase the contrast, press the (+) button. o decrease the contrast, press the (-) button. CONRAS ADJUS + -

7 / JA12 Item: 3 Instrument Diag. Select item 3 to display the instrument diagnostic menu. 1 - Gauge est 2 - Lamp est 3 - LCD est SELEC here are seven choices within this menu item and you can navigate through these items in the same manner as the main menu. Each sub-item is listed, as follows: Sub-Item 6: Analog Input Select this item to display the module, pin number, and status out of range high, out of range low, or the actual value of each analog input defined in the system (if present in the vehicle). Press the button to scroll the display to the next four inputs. his information will be continuously updated to facilitate diagnostics. Press the button to exit the display and return to the menu. o exit the sub-menu and return to the main menu list: Press both the m and t buttons momentarily. Sub-Item 1: Gauge est he selected gauge will be driven through three positions pausing at each position as shown in the LCD as a percentage of scale. his test will proceed through all gauges and return to the menu. Press the button (Exit) to end the test and return to the main sub-menu. If a Lin gauge is not detected after the powerup test, the gauge is not tested and missed. Sub-Item 2: Lamp est Select this item to turn each instrument panel warning lamp (not the vehicle load) on, then off. his test displays the lamp name and status in the LCD. his test goes through all warning lamps and then returns to the main sub-menu. Press the button (Exit) to end the test and return to the menu. Sub-Item 3: LCD est Select this item to perform an LCD test. his test will display the Nova Bus logo in normal and reverse video three times and will then return to the main sub-menu. Sub-Item 4: Backlight est Select this item to perform an LCD backlight test. his activates backlighting for indicators and the LCD screen. his test is performed twice. hree different lighting intensites are displayed: 0% - 50% - 100%. -1 Fuel 100% -4 Dimmer 0% -6 Park Brake 4.7 V -4 12V Battery 13.2 V Engine / ransmission / ABS Faults Certain diagnostic information, such as Engine, ransmission and ABS active faults, as well as fault history, is available through the message display center. + NOE: For all Electronic Control Units (ECUs or ECs) the message display center will show the current Diagnostic rouble Code (DC) received, by Suspect Parameter Number (SPN) with a specific Failure ode Identifier (FI). Item: 4 Engine Faults Select item 4 to display the engine fault menu. Press the m and the t buttons at the same time for approximately two seconds. his will then display any engine active faults found in the system. Each line represents a different code message.if the SPN is not known, the message displayed is either a text or a numeric value. If no faults are found, the following message is displayed: No DC Received. Sub-Item 5: Speaker est Select this item to perform an audio test. his test activates an audible alarm. his test is performed twice, for a three-second period each time. wo different sound intensities are heard: one 1 and one 2. Oil Pressure SPN 110 Exit Low+ oo Low

8 2011JA12 8 / Item: 5 Engine historic fault Select item 5 to display the engine hist. fault menu. Press the m and the t buttons at the same time for approximately two seconds. his will then display any stored engine faults codes found in the system. Each line represents a different code message.if the SPN is not known, the message displayed is either a text or a numeric value. If no faults are found, the following message is displayed: No DC Received. Item: 8 ransmission historic fault Select item 8 to display the trans. hist. fault menu Press the m and the t buttons at the same time for approximately two seconds. his will then display any stored transmission fault codes found in the system. Each line represents a different code message. If the SPN is not known, the message displayed is either a text or a numeric value. If no faults are found, the following message is displayed: No DC Received. Oil Pressure SPN 110 Low+ oo Low rans emp SPN 177 oo High High Exit Exit Item: 6 Clear engine fault Select item 6 to display the clear engine fault menu. Press the m and the t buttons at the same time for approximately two seconds. hese messages will be displayed: Clear Previous Faults Press t to reset m to exit Item: 9 Clear ransmission fault Select item 9 to display the clear trans. fault menu. Press the m and the t buttons at the same time for approximately two seconds. hese messages will be displayed: Clear Previous Faults Press t to reset m to exit Clear Previous Faults Press to Reset to Exit Clear Previous Faults Press to Reset to Exit Item: 7 ransmission Faults Select item 7 to display the transmission fault menu Press the m and the t buttons at the same time for approximately two seconds his will then display any transmission active faults found in the system. If the SPN is not known, the message displayed is either a text or a numeric value. If no faults are found, the following message is displayed: No DC Received. Item: 10 ABS Faults Select item 10 to display the engine fault menu. Press the m and the t buttons at the same time for approximately two seconds. his will then display any ABS active faults found in the system. Each line represents a different code message. If the SPN is not known, the message displayed is either a text or a numeric value. If no faults are found, the following message is displayed: No DC Received. rans emp SPN 177 oo High High No DC Received Exit Exit

9 / JA12 Item: 11 ABS historic fault Select item 11 to display the abs hist. fault menu Press the m and the t buttons at the same time for approximately two seconds. his will then display any stored transmission fault codes found in the system. Each line represents a different code message. If the SPN is not known, the message displayed is either a text or a numeric value. If no faults are found, the following message is displayed: No DC Received. No DC Received Exit Item: 12 Clear ABS fault Select item 12 to display the clear abs fault menu. Press the m and the t buttons at the same time for approximately 2-seconds. hese messages will be displayed: Clear Previous Faults Press t to reset m to exit Clear Previous Faults Press to Reset to Exit Parameter ext Designation Displayed 1 Eng RP Engine Speed 2 Boost Pr Boost Pressure 3 Eng Load Engine Load 4 Req. orque orque Request 5 rans ransmission emperature 6 Coolant Engine Coolant emperature 7 Oil Press Oil Pressure 8 Prim. Air Primary Air Pressure 9 SecondAir Secondary Air Pressure 10 Emergency Emergency Air Pressure 11 Serv Brake Service Brake Air Pressure 12 Prim. RAir Rear Primary Air Pressure* 13 Fuel Lev Fuel Level 14 Inst Fuel Instantaneous Fuel Consumption 15 Avg Fuel Average Fuel consumption 16 Hrs Engine Hours 17 Dimmer Dimmer potentiometer 18 Speed Vehicle Speed 19 Gear Gear Selected 20 24V Batt 24 Volts Battery Voltage 21 12V Batt 12V Battery Voltage able 2 - Read Parameters Item: 13 Read Parameters Select item 13 to display the read param. menu his screen displays various parameters received by the aster Gauge. he main use for these screens is to troubleshoot the system. able 2 illustrates a list of Read Parameters: Item: 14 Ramp Counter Select item 14 to display the ramp counter menu he following message is displayed on the screen for displaying the ramp count. o reset the ramp count to 0: Press the button. + NOE: he most-recent Rear Primary Air Pressure reading is displayed only if the articulated vehicle s ECU is visible on the J1939 network. Ramp: 12 Press to Reset to Exit

10 2011JA12 10 / Item: 15 Brake State Select item 15 to display the brake state menu he brake lining status is sent for one wheel every 100ms from the V-BEA ultiplex system. he figures displayed on the left side of the screen represent the front wheels. he top line represents the curb-side of the vehicle. You can choose whether the value is expressed as a percentage of wear (%), in millimeters (mm) or in inches (in.) for each brake lining. A value of 100% signifies brand-new linings. Item: 17 Bus Input est o obtain input cycling test information: 1. Apply the parking brake, and 2. Activate the maintenance switch in the overhead left console. Select item 17 to display the bus input test menu his menu allows you to test all the outputs read by the V-BEA ultiplex system. he following message is displayed on the screen when starting the inputs test. Bus Inputs est: to Exit to Start (DISPLAY FOR ARICULAED VEHICLE ILLUSRAED) Brake lining State 54% 49% 88% 55% 55% 88% to Exit Item: 16 Bus Output est o obtain output cycling test information: 1. Apply the parking brake, and 2. Activate the maintenance switch in the overhead left console. Select item 16 to display the bus output test menu his menu allows you to test all the outputs read by the V-BEA ultiplex system. he following message is displayed on the screen when starting the outputs test. he signal output sequence varies according to vehicle programming. o start the test: Press the button. A corresponding signal is sent periodically to the J1939 frame to the V-BEA ultiplex system. o stop the test: Press the m button. he corresponding signal is cleared indicating to the V-BEA ultiplex system to stop the test. Once the stop test signal is received the V-BEA ultiplex system sends the outputs test status. o start the test: Press the button. A corresponding signal is sent periodically to the J1939 frame to the V-BEA ultiplex system. Each time a transition is seen in one of the V- BEA ultiplex inputs, a buzzer generates an audible tone. No feedback is received on the input which generates the audible tone. o stop the test: Press the button. he corresponding signal is cleared indicating to the V-BEA ultiplex system to stop the test. Item: 18 V-BEA ux State his menu allows you to validate the communication network read by the V-BEA ultiplex system. It lists the state of each missing or defective module in the system. Note that some data on certain states and conditions may not be available due to customer network configuration. + NOE: A total loss of instrument panel display is possible under the following two conditions: 1. Loss of ID odule Loss of ID odule 43 For a complete list of SPN numbers, please contact Nova Bus. to Exit Bus Outputs est: to Stop Faulty V-BEA odule to Exit

11 / JA12 Other electrical components and panels For a regular 40 LFS vehicle, numbers inscribed beside the component s description correspond to the numbers in Figure 8. For a 60 articulated LFS vehicle, see Figure A1 in Annex A for the corresponding information. NOE: Electrical components closely related to other systems or units are covered in other sections within this manual. CAUION: Before removing, dismantling or maintaining any electrical component, the electrician should take the necessary precautions to avoid any risk of personal injury or damage to the equipment. See the provided coach wiring diagram for further details on electrical circuit power cut-off points. (IB BOX) 3 Circuit breaker panel 4 V-BEA and ABS odule PANEL 5 RANSISSION ELECRONIC CONROL module (ECU) 2 Electric horns 1 battery tray 6 Starter Figure 8 - Electrical Component Locations (ypical 40 Nova LFS)

12 2011JA12 12 / battery tray AND AIN CIRCUI BREAKER (1) Located at the left front of the vehicle, underneath the floor, it includes two batteries and a 24-volt switch. See section : batteries in this manual for additional information on batteries. Also, see section : converter/ equalizer in this manual for additional information on this component. NOE: he 24-volt main circuit breaker cut-off lever and switch are accessible from the battery compartment. Electric horns (2) he two horns are located at the front of the vehicle, on the left-hand side. Each has its own pitch. Both are carefully adjusted and examined during manufacturing and should work indefinitely without need for maintenance or inspection. hey should never be adjusted or repaired. If one no longer operates, it should be replaced. However, the fault could lie in the external circuit. A quick check can be carried out with a jumper wire. See the coach wiring diagram to determine the horn circuit s check points. Circuit breaker panel (3) he circuit breaker panel is located above the operator s compartment. A special key is required to access the components in this panel. See the coach wiring diagram for information on electrical components and connections in this panel. V-BEA and ABS module panel RANSISSION ELECRONIC CONROL module (ECU) (5) Located in the IB box, above the rearmost passenger seat, the ECU controls the transmission. It receives information from the throttle position sensor, the vehicle speed sensor, the pressure switches and the transmission push-button selector. he ECU processes such data and controls the transmission via solenoids located on the transmission control module. In addition, the ECU monitors the system for conditions that could damage the transmission or cause poor performance during normal vehicle operation. When such conditions are detected, the ECU is programmed to respond automatically, to ensure safe operation of the transmission, and more generally, of the vehicle. See the coach wiring diagram for information on components in the ECU circuits. See the transmission manufacturer s repair manual for additional details on the ECU. Starter (6) Located in the engine compartment, the starter is easily accessed by opening the left rear side panel. For additional details on the starter, see section : starting system in this manual. RELAYS In some cases, relays are used to automatically open or close a circuit according to operating conditions. In other cases, they provide a direct link between the battery and an electrical device, with only very low current required to switch on the operating coil through the control switch. hey also eliminate the need for long, heavy wires and cables. Several relays of the same type are used on each vehicle; however, they are used in different circuits for different purposes. (4) he v-bea and ABS module panel is located at the centrefront of the vehicle. It contains the v-bea and ABS modules, as well as the ID writer connector. A special key is required to access the components inside this panel. See the coach wiring diagram for information on these components.

13 / JA12 exterior LIGHING SYSE GENERAL description See Figures 9 to 13. he coach wiring diagram shows the interior and exterior lighting circuits and their control switches, relays and circuit breakers, the indicator and warning lights, the stoplights, the turn signal, and other types of lighting. he following detailed information pertains to a regular 40 LFS vehicle. For a 60 articulated LFS vehicle, see Annex A and Figure A2 for the corresponding information. REOVAL 1. Remove the screws securing the headlight molding to the front trim panel and remove the frame. 2. Place the holding ring onto the lens and secure it to the retaining ring. 3. Remove the light unit and disconnect the wiring connecting the plug behind this unit. WARNING: All headlights, exterior lights, and indicator and warning lights should be checked daily and all necessary changes made on the spot. See the NovaBus parts manual to determine the appropriate replacement bulbs and LEDs. conventional single HEADLIGHS Headlights are of the two-wire type, since they comprise a high and a low beam. hey are 24-volt type. Circuit breakers protect all lighting circuits. For the location of all circuit breakers, see the circuit breaker panel and main circuit panel heading in this section. Also, see the coach wiring diagram for further details on circuit breaker capacities. Light unit lenses contain three projecting locating points, which are optically frosted, in order to provide flat surfaces at a right angle to the beams. his design allows the adjustment of headlight aim during full daylight, without the need for a headlight alignment screen or a large work area. Adjustment is carried out using an appropriate headlight aimer. Always follow instructions provided by the manufacturer for using this device. Figure 9 - ypical Conventional Headlight Light unit replacement See below for removal and installation procedures for the conventional style of sealed beam headlight. Also, see 9 and 10. See Annex B and Figures 1B through 6B for the corresponding information for alternative single and twin headlight designs WARNING: When replacing any headlight bulb, do not handle the bulb with bare hands. If you touch the glass, your fingers will deposit skin oils, creating a hot spot on the bulb, thus reducing its lifespan. 1. HEADLIGH OLDING 2. HOLDING RING 3. HEADLIGH 4. ADJUSING SCREW Figure 10 - Front Headlight ounting 00446

14 2011JA12 14 / Side marker lights 2. reflectors 3. turn signals 4. kneeling light 5. overhead door lighting Figure 11 - Side Lights and Reflectors - 40 LFS Headlights 2. left turn signal light 3. right turn signal light 4. clearance lights 5. marker lights rear center brake light 2. reflectors 3. right backup light 4. right tail and stop light 5. right turn signal light 6. left backup light 7. left tail and stop light 8. Left turn signal light 9. rear clearance lights 10. marker lights 11. license plate light 12. Hazard Flashers Figure 12 - Front View of a ypical Vehicle Figure 13 - Rear View of the Vehicle

15 / JA12 Installation NOE: A 24-volt light unit must be used. 1. Connect the wiring connecting plug behind the light unit. Position the unit in the retaining ring so that the fixing brackets behind the unit slide into the retaining ring holes. he code number molded into the lens should face upward. 2. Place the holding ring onto the lens and secure it with the retaining ring. SOPLIGH pressure switch See Figure 14. he electropneumatic stoplight switches work jointly with the brake valve and stoplights to complete the electrical circuit when the operator applies the brakes. When the operator applies the brakes, the brake valve's air pressure penetrates the cavity under the diaphragm. At about 5 psi (34.4 kpa), the air pressure under the diaphragm exceeds spring force and moves the piston or plunger until the contact points close; this completes the circuit and turns on the stoplights. Inspect the electrical connections every month or every10,000 miles (16,000 km). NOE: Checking and aiming the beam is necessary, even if the headlight was correctly aimed before replacement of the light unit, in order to provide the safest road illumination. he bus must be level, on a flat horizontal surface, with the brakes applied. he air pressure in the pneumatic system must be at 120 psi (827 kpa). Some government authorities have specific requirements for headlight aiming; these should be checked before adjustment is made. 3. After installation and aiming, install the headlight molding. HIGH/LOW-BEA SWICH he control switch, mounted on the floor, or optionally on the steering column allows the selection of the high or low headlight beam. See the operator's manual for this switch s operating conditions. he high/low-beam switch requires no maintenance, except keeping the cable connections securely tightened. If the switch fails, it must be replaced. If steering mounted, see section 07: steering column in this manual to verify the replacement method. 1. Disconnect the electrical connections to the stoplight switch. 2. Expel the air from the system. 3. Disconnect the switch's air line. 4. Remove the switch. 5. Follow the preceding steps in reverse order to install the new switch. esting 1. Operation est a. Apply the brakes and confirm that upon the first downward motion of the brake pedal, the stoplight indicator lamp immediately turns on. b. Release the brake pedal and confirm that the stoplight indicator lamp turns off. 2. Sealing ightness est When the brakes are applied, the stoplight switch should not exhibit any leaks. Removal and Installation SOPLIGHS he stoplights include the left and right rear combined tail and stoplights, a rear stoplight, pneumatic switches mounted at the front of the vehicle (see section 08: pneumatic system module for details on switch positions), a lamp monitor mounted on the operator s connection panel, and a stoplight warning light on the instrument panel. See the coach wiring diagram for further details concerning operation of the signal lights. Figure 14 - ypical Pressure Switch

16 2011JA12 16 / parking brake stoplight pressure switch he parking brake stoplight pressure switch is adjusted to a pressure of 80 psi (550 kpa). When air pressure at the feed port, and under the diaphragm, exceeds 80 psi (550 kpa), the electrical contacts stay open, because the force exerted by the air pressure under the diaphragm exceeds that exerted by the spring above the diaphragm. When the air pressure under the diaphragm is less than 80 psi (550 kpa), the force of the spring is greater than the pressure of the air. his moves the diaphragm and piston and allows the electrical contacts to close. his completes the circuit to the parking brake stoplight relay. Every month, or every 10,000 miles (16,000 km), inspect the electrical connections. Every 100,000 miles (160,000 km), dismantle, clean and closely examine all parts. Replace all worn or deteriorated parts. Normal Operating est 1. Operating est o verify switch operation, set the master control switch to normal driving mode, reduce air pressure and check whether the stoplight indicator lamp turns on when pressure drops below 80 psi (550 kpa). he contacts will close when the indicator lamp turns on. 2. Sealing ightness est When there is air pressure at the feed port, coat the switch with a soapy solution and check for leaks. no leaks are allowed. Removal and Installation. 1. Set the master control switch to off-normal driving mode. 2. Expel air from the system. 3. Remove the parking brake control tower. See section 08: braking system, for additional information. 4. Disconnect the electrical connections. 5. Disconnect the air line and remove the retaining bolts. 6. Replace the switch. 7. Follow the preceding steps in the reverse order to install the new switch. 8. Carry out the operation tests. AILLIGHS he taillights are combined with the stoplights. he stoplight circuit is powered when the master control switch is in normal driving mode or normal night driving mode position. aillights and stoplights are replaceable LED type. LICENSE PLAE LIGHING License plate lights are mounted either side of the license plate, on the lower left-hand corner of the engine compartment door. he taillight circuit controls these lights. o replace the bulb, take off the rectangular glass pane held in place by two bolts. Replace the defective bulb, and then put the glass pane back into place. ighten the two bolts without overtightening. turn signals he turn signals include two lamps located on the engine compartment door at the rear of the vehicle, two lamps at the front of the bus, and side lamps. Foot switches, located on the slanted floor panel to the left of the steering column, control the turn signals on the bus. he coach wiring diagram shows the relevant electrical circuits and connections. See the operator's manual for information on turn signal operation. HAZARD FLASHERS ypically, the hazard flashers include two rear, two front, and four side turn signal lights (two on each side, located near the wheelhouses). hey are actuated by the emergency flasher switch on the dashboard. he coach wiring diagram shows the relevant electrical circuits and connections. SWICH REPLACEEN he toggle hazard flasher switch is held to the dashboard by a hexagonal nut. o remove the switch, remove the nut and the identification plate, and pull the switch out from under the dash panel. ake sure the wires are clearly identified before removing them from the switch, so that they are in correct position for installation.

17 / JA12 BACKUP LIGHS he backup light switch, mounted on the gear selector switch, is actuated when the master control switch is in the normal driving mode or lights position and the gearshift selector is in reverse. CLEARANCE AND ARKER LIGHS Clearance and marker lights are mounted all around the vehicle. hese light circuits are powered when the master control switch is in normal night driving mode or the accessory position. BULB REPLACEEN In locations where bulbs are used, to remove the bulb, remove the screws holding the lens to the light unit body. Remove the lens, then unscrew and remove the bulb. Insert the new bulb and turn to secure into the socket. Reposition the lens and firmly tighten the lens retaining screws. Where replaceable LED type lights are used, merely replace the LED unit. INERIOR LIGHING EQUIPEN FRON and rear DOOR LIGHING he rear doors exterior lighting works when the master control switch is in normal night driving mode or the accessory position. he entrance door lighting, positioned above the floor, is controlled by a door switch that closes when the entrance door opens. he switch s circuit is powered when the master control switch is in normal night driving mode or the accessory position. he bulbs are accessible once the lens is removed. he lens is secured to the casing with two screws. o replace the lamp, remove the grommet, remove and unplug the lamp and re-install a new kit. engine compartment lighting A switch on the engine compartment control box controls engine compartment lighting. he bulbs are exposed and easily accessible. See the NovaBus parts manual to determine replacement bulb part numbers.

18 2011JA12 18 / BLANK PAGE

19 / JA12 SECION A headlights alternative single HEADLIGHS See Figures A1 and A2. Headlights are of the two-wire type, since they comprise a high and a low beam. hey are 24-volt type. Circuit breakers protect all lighting circuits. For the location of all circuit breakers, see the circuit breaker panel and main circuit panel heading in this section. Also, see the coach wiring diagram for further details on circuit breaker capacities. Light unit lenses contain three projecting locating points, which are optically frosted, in order to provide flat surfaces at a right angle to the beams. his design allows the adjustment of headlight aim during full daylight, without the need for a headlight alignment screen or a large work area. Adjustment is carried out using an appropriate headlight aimer. Always follow instructions provided by the manufacturer for using this device. Light unit replacement WARNING: When replacing any headlight bulb, do not handle the bulb with bare hands. If you touch the glass, your fingers will deposit skin oils, creating a hot spot on the bulb, thus reducing its lifespan. REOVAL 1. Remove the screw securing the headlight bezel to the front of the vehicle and left the bezel from its housing. It is held in place by two flexible mounts. See Figure A2. 2. Remove the screws securing the light unit to its housing. 3. Remove the light unit and disconnect the wiring connecting the plug behind this unit. 4. Carefully withdraw the sealed beam from its socket front shell 2. turn signal lamp 3. headlight 4. bezel 5. ounting clips Figure A1 - Alternative Single Headlight Layout Figure A2 - Alternative Single Headlight ounting

20 2011JA12 20 / INSALLAION NOE: A 24-volt light unit must be used. 1. Perform the previous steps under the heading, removal of the light unit, but in the reverse order. However, before replacing the headlight bezel, ensure that the lights are properly aimed. NOE: Checking and aiming the beam is necessary, even if the headlight was correctly aimed before replacement of the light unit, in order to provide the safest road illumination. he bus must be level, on a flat horizontal surface, with the brakes applied. he air pressure in the pneumatic system must be at 120 psi (827 kpa). Some government authorities have specific requirements for headlight aiming; these should be checked before adjustment is made. HIGH/LOW-BEA SWICH WIN HEADLIGHS Box Style and oval style See Figures A3, A4, A5 and A6. Headlight configuration can be as follows: two halogen type, or one xenon and one halogen type, or two LED type lights. hey can be comprised of either: one halogen high beam and one halogen main beam, or one halogen high beam and one xenon main beam, or one LED high beam and one LED main beam units. hey are all 24-volt type. Xenon headlights require a ballast. Ballasts provide the high voltage necessary to create the arc inside the bulb. Once the electrical arc is created, the ballast provides the power to maintain the arc. Ballasts are not required for halogen or LED lights. Circuit breakers protect all lighting circuits. For the location of all circuit breakers, see the circuit breaker panel and main circuit panel heading in this section. Also, see the coach wiring diagram for further details on circuit breaker capacities. he lever-control switch on the steering column, or optional foot-operated floor switch, allows the selection of the high or low headlight beam. See the operator's manual for this switch s operating conditions. he high/low-beam switch requires no maintenance, other than keeping the cable connections securely tightened. If the switch fails, it must be replaced. See section 07: steering column in this manual to verify the replacement method. left turn signal light curbside high beam curbside low beam Figure A3 - Halogen/Xenon Headlights (Box Style) Figure A4 - Front Headlights (Oval Style)

21 / JA LAP BEZEL 2. COVER ASSEBLY 3. BRACKE (ay be one piece) 4. KI ASSEBLY 5. HEADLAP HIGH BEA 6. HEADLAP LOW BEA 7. SCREWS 8. WASHERS 9. turn INDICAORS 10. RUBBER GROES 11. Ballast for xenon light supports SECURING BEZEL O BRACKE Figure A5 - win Front Headlight ounting (Box Style) bezel attaching screws holes for inset pins attaching screws UPPER AND LOWER OUNING PLAES adjusting screws adjusting screws supports SECURING BEZEL O inse Figure A6 - Front Headlight ounting (Oval Style)

22 2011JA12 22 / Light unit replacement (HALOGEN AND XENON) WARNING: Replacing xenon or halogen light bulbs requires safety glasses to prevent injury. NOE: Ensure that replacement halogen/xenon bulbs for high and low beam units are installed correctly. Do not switch them. he xenon unit is connected to a ballast unit. REOVAL 1. Remove the screw securing the headlight bezel to the front of the vehicle and swing the bezel out from its housing. It is held in place by two supports. 2. Remove the screws securing the light unit to the bracket. 3. Remove the light unit and disconnect the wiring connecting the plug behind this unit. 4. Push aside the two metal clasps holding the bulb in place. 5. Carefully withdraw the halogen/xenon bulb from its socket. Installation 1. Perform the previous steps under the heading, removal of the twin light unit, but in the reverse order. However, before replacing the headlight bezel, ensure that the lights are properly aimed. 2. When securing the wiring harnesses inside the light inset, be sure that it is tied securely. For wiring inside the front shell, ensure that there is no interference with the windshield wiper shaft. Light unit replacement (LED) NOE: LED headlights are replaced as complete units. NOE: Ensure that replacement LED light units for high and low beam units are installed correctly. Do not switch them. hey are marked accordingly on the rear of the unit. REOVAL 1. Remove the screw securing the headlight bezel to the front of the vehicle and swing the bezel out from its housing. It is held in place by two supports. 2. Remove the screws securing the light unit to the bracket. 3. Remove the light unit and disconnect the wiring harness behind this unit. Installation 1. Perform the previous steps under the heading, removal, but in the reverse order. However, before replacing the headlight bezel, ensure that the lights are properly aimed. See the manufacturer s information, supplied by Nova Bus, regarding the proper method of aiming LED headlights. 2. When securing the wiring harnesses inside the light inset, be sure that it is tied securely. For wiring inside the front shell, ensure that there is no interference with the windshield wiper shaft.

23 / 23 SECION B Advanced Information Center (AIC) SYSE 2011JA12 general description his document addresses the AIC in the wireless configuration only. he AIC system is comprised of 1. A dashboard mounted display, see Figure 1B. his unit displays all functions of vehicle operation. 2. A computer, see Figure B2. he computer stores all the data covering all functions of vehicle operation. 3. A wireless modem, see Figure B3. his unit sends and receives data from the central depot, and 4. A navigation controller (cursor), see Figure 4B, which allows the driver or service personnel to navigate through the menus and the information shown on the display. Figure B1 - AIC Display Figure B3 - Wireless odem ordinateur Figure B2 - Computer Figure B4 - Navigation Controller

24 2011JA12 24 / DISPLAY he AIC display is mounted centrally in the instrument panel. he software for this unit is configured according to your organization s requirements. he system allows for language preferences, thus the system can operate either in English or French. he AIC display is attached to the dashboard by turnclips on the underside of the unit Removal 1. Remove the 10 screws holding the instrument panel to the main dashboard. See Figure B5. 2. Carefully raise the instrument panel. 3. Disconnect the wiring harness attached to the rear of the display 4. urn the clips to release their hold from the underside of the instrument panel. 5. Lift out the display. odem he AIC wireless modem is located behind the first baselight on the street side of the vehicle. See Figure B7. Removal 1. Remove the four bolts holding the mounting plate to the baselight interior. 2. Disconnect the cables from the modem. 3. Remove the modem and plate from behind the baselight. 4. Remove the four bolts that attach the modem to the mounting plate. Installation 1. Follow steps 1 through 4 above, but in the reverse order. Installation 1. Follow steps 1 through 5 above, but in the reverse order. Computer he AIC computer is mounted in the driver s overhead panel. See Figure B6. Removal 1. Unlock the overhead panel door latches. 2. Lower the panel door. 3. Loosen the four screws holding the computer to the panel. 4. Detach the monitor connector. 5. Detach the RJ-45 connector, and 6. Detach the green V-BEA connectors. screws Figure B5 - Display on Instrument Panel Installation 1. Follow steps 1 through 6 above, but in the reverse order. PANEL LACH LACH Figure B6 - Driver's Overhead Panel

25 modem mounting plate / 25 SOFWARE navigation Usually, all navigation is performed with the arrow keys: left and right arrow keys navigate through the menu; up and down arrow keys are used to make a selection within a menu; confirmation of a selection is performed with the Enter key. o navigate through the menus, the following flow information should be noted. 2011JA12 Figure B7 - Wireless odem Behind Baselight Navigation Controller he navigation controller is located on the upper left-hand side or the upper right-hand side of the dashboard.. Removal 1. Remove the four screws holding the controller to the dashboard. 2. Carefully lift up the controller, and 3. Disconnect the wiring harness behind the controller. Cancel selection/choice or previous screen Execute selection/choice (enter) Installation 1. Follow steps 1 through 3, but in the reverse order. During access to certain screens, a confirmation popup screen, shown below, may appear. his merely requests confirmation to apply the value entered.

26 2011JA12 26 / DRIVER INFORAION At start-up, an initial system loading screen will appear, as indicated below. his will generally be the Nova Bus logo. Press the enter key to access the next screen. his screen will present the driver with four possible choices of: a. day/night mode b. trip information c. settings, and d. maintenance. aintenance is generally a restricted section. A PIN code is required to proceed further. Once the system has fully loaded (a few seconds), this screen will be replaced by the system default/main view screen. a. DAY/NIGH ODE he display, by default, is set to day brightness. o dim the display for night mode: Press the left-hand arrow on the cursor, Press the enter key. he following screen will appear. Press the esc key to return to the previous screen.

27 / JA12 B. RIP INFORAION o access the trip information screens from the main view: Press the up arrow on the cursor. C. SEINGS o access the settings screen from the main view: Press the down arrow on the cursor. Press the enter key. he trip information screen will appear. Press the enter key. he language screen will appear. Press the down arrow on the cursor. he reset screen will appear. If the last setting requires to be changed, select the language of choice. A dialogue box pops up where the change must be confirmed. his changes the language in all views. Press enter to apply. Press esc to return to the main menu.

28 2011JA12 28 / D. AINENANCE INFORAION he maintenance section is not normally accessible to drivers. o access the maintenance screen: Press the right-hand arrow on the cursor. AINENANCE INFORAION AIC INFORAION Once the correct PIN code has been entered, the aic information screen will appear. his screen gives information on the aic system, including the revision version of the AIC software. Press the enter key. he insert pin code screen will appear. he following screens are only accessible to personnel possessing a valid PIN code. Press the down arrow on the cursor once to access the diagnostics information. Use the up or down arrows on the cursor to enter the correct numbers.

29 / JA12 Once in the diagnostics menu, press the down arrow on the cursor to go from line to line. Press the enter key to access the sub-menu for each line, as indicated in the sample below. he diagnostics sub-menu should present you with a blank screen, if all is well with the system. As an example of diagnostic faults, you may see choices similar to the illustration. Your displayed information will be different. In addition, the screen will indicate the value of any diagnostic faults discovered with either red, yellow or orange LEDs, active bea faults, inactive bea faults and J1939 faults, respectively. COUNERS AND SENSORS o access the counters and sensors menu from the main maintenance menu: Press the down arrow twice. Within the counters and sensors menu, you will be presented with 31 parameters. hese are: ime in run mode ime in light mode ime in accessory mode Destination sign usage ime of central heating system ime of auxiliary heating ime in floor heating system Odometer Engine usage Gearbox usage Front door cycles iddle door cycle Rear door cycle ime using high beams ime using low beams ime using DRL Compressor usage Compressor duty cycle Ramp usage Brake wear front left Brake wear front right Brake wear middle left Brake wear middle right Brake wear back left Brake wear back right Pressure and temperature tire front left Pressure and temperature tire front right Pressure and temperature tire middle left Pressure and temperature tire middle right Pressure and temperature tire rear exterior left Pressure and temperature tire rear exterior right Pressure and temperature tire rear interior left Pressure and temperature tire rear interior right

30 2011JA12 30 / o change values within any category, a dynamic keyboard can be executed by pressing the enter key. Keyboard is dynamic and can be executed with different types of symbol-setup. SYSE SAUS o access the system status menu from the main maintenance menu: Press the down arrow three times. he following screen will appear.

31 / JA12 Within the system status menu, you will be presented with 8 choices. hese are: State of exterior lighting State of ABS system State of transmission system State of engine State of com. network Active BEA fault groups Active DC codes State of multiplex modules DAE o access the date menu from the main maintenance menu: Press the down arrow five times. he date screen will appear. his menu will allow you to change the system date, if required. Use the up and down arrows to change the numbers. UPDAE SYSE o access the update system menu from the main maintenance menu: Press the down arrow four times. he update system screen will appear. his menu will allow you to update the system when, for example, a revised ID aster program is available. IE o access the time menu from the main maintenance menu: Press the down arrow six times. he time screen will appear. his menu will allow you to change the system time, if required. Use the up and down arrows to change the numbers.

32 2011JA12 32 / WIRELESS NEWORK tire pressure monitoring system (PS) o access the wireless network menu from the main maintenance menu: Press the down arrow seven times. he wireless network screen will appear. his menu will allow you to change the communication state of the wireless network, if required. Use the left and right arrows to make the necessary changes. Each wheel rim has a battery-powered emitter installed on the inside of each rim. On the vehicle, there are several antennae that receive data from these emitters. It is possible to set the wireless network on or off. + CAUION: Battery-powered emitters are assigned to a particular wheel hub. hese cannot be interchanged. It is vitally important that each, so-equipped rim, removed from the vehicle for tire replacement, is reinstalled on exactly the same hub from which it was removed. If there exists a policy of tire and rim rotation on a vehicle, then it is also vitally important that the battery-powered emitter be removed from the rim, and placed on the rim, with tire, that is installed in its place. Either of these measures will ensure that the PS displays the tire pressure values appropriate to the wheel s location.

33 / JA12 Reprogramming NOE: Before reprogramming the AIC module, the program must be transferred from a computer to a compact flash memory card. 1. ake sure the engine start switch, located in the engine compartment, is in the normal position. 2. Place the master control switch in the stop position. Deactivate the battery disconnect switch in the auxiliary battery compartment. 3. Open the right-hand side access door of the electrical main panel and insert the compact flash card in the AIC module. See Figure B8. 4. Apply power to the vehicle. As soon as the vehicle is powered up, green lamp pwr on the module lights to indicate that the AIC module is on. See Figure B9. 5. he module downloads the program, which is on the compact flash card. he download progress is displayed on the screen. During this time, yellow lamp B flashes. When the download is complete, the installation of the program is done automatically. 6. When the installation is complete, lamp A lights up, lamp B stops flashing, an audible pulse sounds and the screen displays a message indicating that the compact flash card must be removed from the module. See Figure B Remove the compact flash from the module. Lamp a goes off. 8. At start-up of the system, the home page of the AIC software is displayed. o verify the last software version installed, see the heading maintenance information - aic information in this section. NOE: he programming of certain vehicles also requires that the maintenance switch on the upper left panel is activated for the AIC to go on. C B A pwr Figure B9 - Identification of Lamps on AIC odule (screen icon may differ) Figure B8 - Compact Flash Card in AIC odule Figure B10 - Installation Complete