LAN SYSTEM SECTION LAN CONTENTS ELECTRICAL & POWER CONTROL LAN-1 CAN FUNDAMENTAL HOW TO USE THIS MANUAL... 4 PRECAUTION...21 PRECAUTION...

Transcription

1 TR & WR TR ST SYSTM TTS UMT W T US TS MU... 4 W T US TS ST... 4 nformation...4 RUT... 5 RUTS... 5 recautions for Trouble iagnosis...5 recautions for arness Repair...5 SYSTM SRT... 6 SYSTM... 6 MMUT SYSTM...6 MMUT SYSTM : System escription : System escription...6 TRU SS... 8 omponent escription...8 ondition of rror etection...8 Symptom When rror ccurs in ommunication System...9 iagnosis with SUT...11 Self-iagnosis...12 iagnostic Support Monitor...12 ow to Use ommunication Signal hart...14 S ST...15 SS RR WRW...15 Trouble iagnosis low hart...15 Trouble iagnosis rocedure...15 W T US TS MU...20 W T US TS ST...20 nformation...20 bbreviation ist...20 RUT...21 RUTS...21 recaution for Technicians Using Medical lectric...21 igh Voltage recautions...21 recaution for Supplemental Restraint System (SRS) "R " and "ST T R-T- SR"...23 oint to e hecked efore Starting Maintenance Work...24 recautions for Removing attery Terminal...24 recautions for Trouble iagnosis...25 recautions for arness Repair...25 RRT...26 RRT...26 ommercial Service Tools...26 SYSTM SRT...27 MT RTS...27 omponent arts ocation...27 SYSTM...28 MMUT SYSTM...28 MMUT SYSTM : System escription...28 MMUT SYSTM : ommunication ontrol ircuit...32 MMUT SYSTM : System Specification hart...32 MMUT SYSTM : ommunication Signal hart...33 WR RM...39 SYSTM

2 Wiring iagram S ST SS RR WRW nterview Sheet T/RUT SS MUT R RT ommunication ircuit V System ircuit M TW M- S/ RUT iagnosis rocedure M TW S/ RUT iagnosis rocedure M TW V/M RUT iagnosis rocedure M TW R- UT iagnosis rocedure V/V R RUT ( M- MUT RUT) iagnosis rocedure S R RUT iagnosis rocedure M R RUT iagnosis rocedure V/V R RUT (V SYS- TM RUT) iagnosis rocedure V/M R RUT iagnosis rocedure R RUT (V SYSTM RUT) iagnosis rocedure ST R RUT iagnosis rocedure V R RUT iagnosis rocedure TU R RUT iagnosis rocedure R RUT iagnosis rocedure V T R RUT iagnosis rocedure MMUT RUT iagnosis rocedure V SYSTM RUT iagnosis rocedure SYSTM (TY 1) R R RUT iagnosis rocedure M- R RUT iagnosis rocedure S/ R RUT iagnosis rocedure R RUT iagnosis rocedure V R RUT iagnosis rocedure R RUT ( MMU- T RUT) iagnosis rocedure S R RUT iagnosis rocedure M& R RUT iagnosis rocedure STR R RUT iagnosis rocedure T/RUT SS M TW M- S/ RUT iagnosis rocedure M TW S/ RUT iagnosis rocedure M TW V/M RUT iagnosis rocedure M TW R- UT iagnosis rocedure V/V R RUT ( M- MUT RUT) iagnosis rocedure S R RUT iagnosis rocedure R R RUT... 82

3 iagnosis rocedure...82 M- R RUT...83 iagnosis rocedure...83 S/ R RUT...84 iagnosis rocedure R RUT...85 iagnosis rocedure...85 V R RUT...86 iagnosis rocedure...86 R RUT ( MMU- T RUT)...87 iagnosis rocedure...87 S R RUT...88 iagnosis rocedure...88 M& R RUT...89 iagnosis rocedure...89 STR R RUT...90 iagnosis rocedure...90 M R RUT...91 iagnosis rocedure...91 V/V R RUT (V SYS- TM RUT)...92 iagnosis rocedure...92 V/M R RUT...93 iagnosis rocedure...93 R RUT (V SYSTM RUT)...94 iagnosis rocedure ST R RUT...95 iagnosis rocedure...95 V R RUT...96 iagnosis rocedure...96 TU R RUT...97 iagnosis rocedure...97 R RUT...98 iagnosis rocedure...98 V T R RUT...99 iagnosis rocedure...99 MMUT RUT iagnosis rocedure V SYSTM RUT iagnosis rocedure

4 W T US TS ST < W T US TS MU > [ UMT] W T US TS MU W T US TS ST nformation : UMT of Section describes the basic knowledge of the communication system and the method of trouble diagnosis. or information peculiar to a vehicle and inspection procedure, refer to. -4

5 RUTS < RUT > [ UMT] RUT RUTS recautions for Trouble iagnosis : UT: ollow the instructions listed below. ailure to do this may cause damage to parts: ever apply 7.0 V or more to the measurement terminal. Use a tester with open terminal voltage of 7.0 V or less. Turn the power switch and disconnect the 12V battery cable from the negative terminal when checking the harness. Refer to -24, "recautions for Removing recautions for arness Repair Solder the repaired area and wrap tape around the soldered area. T: fray of twisted lines must be within 110 mm (4.33 in). : S8766 ypass connection is never allowed at the repaired area. T: ypass connection may cause communication error. The spliced wire becomes separated and the characteristics of twisted line are lost. S8767 Replace the applicable harness as an assembly if error is detected on the shield lines of communication line. -5

6 SYSTM < SYSTM SRT > [ UMT] SYSTM SRT SYSTM MMUT SYSTM MMUT SYSTM : System escription : (ontroller rea etwork) is a serial communication line for real time application. t is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). n communication, control units are connected with 2 communication lines (- line, - line) allowing a high rate of information transmission with less wiring. ach control unit transmits/receives data but selectively reads required data only. : System escription SYSTM RM : SM0526-6

7 SYSTM < SYSTM SRT > [ UMT] 1 2 iag on ame arness escription Tx Rx or communications with the diagnostic tool. (- and - are used for controlling) or communications with the diagnostic tool. (- and - are used for controlling) or communications with the diagnostic tool. (- and - are also used for control and diagnoses.) SRT iag on is a diagnosis method which uses the communication line for the communication between the control unit and the diagnostic tool. -7

8 TRU SS < SYSTM SRT > [ UMT] TRU SS omponent escription : SM0527 omponent escription Main line communication line between splices ranch line communication line between splice and a control unit Splice point connecting a branch line with a main line Termination circuit ircuit connected across the communication system. (Resistor) ondition of rror etection : T (e.g. U1000 and U1001) of communication is indicated on S- RSUTS on SUT if a communication signal is not transmitted or received between units for 2 seconds or more. MMUT SYSTM RRR communication line open (-, -, or both) communication line short (ground, between communication lines, other harnesses) rror of communication control circuit of the unit connected to communication line W T MMUT S T V TU MMUT SYSTM S RM Removal/installation of parts: rror may be detected when removing and installing communication unit and related parts while turning the ignition switch. ( T except for communication may be detected.) use blown out (removed): communication of the unit may cease. Voltage drop: rror may be detected if voltage drops due to discharged 12V battery when turning the ignition switch (epending on the control unit which carries out communication). rror may be detected if the power supply circuit of the control unit, which carries out communication, malfunctions (epending on the control unit which carries out communication). rror may be detected if reprogramming is not completed normally. T: communication system is normal if T of communication is indicated on S- RSUTS of SUT under the above conditions. rase the memory of the self-diagnosis of each control unit. -8

9 TRU SS < SYSTM SRT > [ UMT] Symptom When rror ccurs in ommunication System : n communication system, multiple control units mutually transmit and receive signals. ach control unit cannot transmit and receive signals if any error occurs on communication line. Under this condition, multiple control units related to the root cause malfunction or go into fail-safe mode. RRR XM T: ach vehicle differs in symptom of each control unit under fail-safe mode and communication line wiring. xample: Main ine etween ata ink onnector and S ctuator and lectric Unit (ontrol Unit) pen ircuit Unit name M M S control unit ombination meter S actuator and electric unit (control unit) TM M /R Major symptom ngine torque limiting is affected, and shift harshness increases. SM0442 Reverse warning buzzer does not sound. The front wiper moves under continuous operation mode even though the front wiper switch being in the intermittent position. The steering effort increases. The shift position indicator and indicator turn. The speedometer is inoperative. The odo/trip meter stops. ormal operation. o impact on operation. When the ignition switch is, The headlamps (o) turn. The cooling fan continues to rotate. -9

10 TRU SS < SYSTM SRT > [ UMT] xample: TM ranch ine pen ircuit SM0443 Unit name Major symptom M M S control unit ombination meter S actuator and electric unit (control unit) TM ngine torque limiting is affected, and shift harshness increases. Reverse warning buzzer does not sound. ormal operation. Shift position indicator and / indicator turn. Warning lamps turn. ormal operation. o impact on operation. M /R ormal operation. T: The model (all control units on communication system are iag on ) cannot perform diagnosis with SUT if the following error occurs. The error is judged by the symptom. rror ifference of symptom ata link connector branch line open circuit -, - harness short-circuit ormal operation. Most of the control units which are connected to the communication system enter fail-safe mode or are deactivated. xample: ata ink onnector ranch ine pen ircuit SM

11 TRU SS < SYSTM SRT > [ UMT] M Unit name M S control unit ombination meter S actuator and electric unit (control unit) TM M /R T: When data link connector branch line is open, transmission and reception of communication signals are not affected. Therefore, no symptoms occur. owever, be sure to repair malfunctioning circuit. xample: -, - arness Short ircuit ormal operation. Major symptom SM0445 M M S control unit ombination meter Unit name S actuator and electric unit (control unit) TM M /R iagnosis with SUT Major symptom ngine torque limiting is affected, and shift harshness increases. ngine speed drops. Reverse warning buzzer does not sound. The front wiper moves under continuous operation mode even though the front wiper switch being in the intermittent position. The room lamp does not turn. The engine does not start (if an error or malfunction occurs while turning the ignition switch.) The steering lock does not release (if an error or malfunction occurs while turning the ignition switch.) The steering effort increases. The tachometer and the speedometer do not move. Warning lamps turn. ndicator lamps do not turn. ormal operation. o impact on operation. When the ignition switch is, The headlamps (o) turn. The cooling fan continues to rotate. : diagnosis on SUT extracts the root cause by receiving the following information. -11

12 TRU SS < SYSTM SRT > [ UMT] Response to the system call ontrol unit diagnosis information Self-diagnosis diagnostic support monitor Self-iagnosis : f communication signals cannot be transmitted or received among control units communicating via communication line, communication-related T is displayed on the SUT Self iagnostic Result screen. T: The following table shows examples of communication-related T. or other T, refer to the applicable sections. T Self-diagnosis item (SUT indication) T detection condition nspection/ction U1000 U1001 MM RUT MM RUT M xcept for M When M is not transmitting or receiving communication signal of (emission-related diagnosis) for 2 seconds or more. When a control unit (except for M) is not transmitting or receiving communication signal for 2 seconds or more. When M is not transmitting or receiving communication signal other than (emission-related diagnosis) for 2 seconds or more. Start the inspection. Refer to the applicable section of the indicated control unit. U1002 SYSTM MM When a control unit is not transmitting or receiving communication signal for 2 seconds or less. U1010 TR UT() When an error is detected during the initial diagnosis for controller of each control unit. Replace the control unit indicating U1010. iagnostic Support Monitor : MTR TM (SUT) xample: SURT MTR indication SM0015 Without ST tem RST escription nitial diagnosis ormal at present ontrol unit error (xcept for some control units) -12

13 TRU SS < SYSTM SRT > [ UMT] Transmission diagnosis With ST tem RST escription ontrol unit name (Reception diagnosis) UW UW ormal at present Unable to transmit signals for 2 seconds or more. iagnosis not performed ormal at present Unable to receive signals for 2 seconds or more. iagnosis not performed o control unit for receiving signals. (o applicable optional parts) tem RST ST escription ormal at present and in the past Transmission diagnosis 1 39 ormal at present, but unable to transmit signals for 2 seconds or more in the past. (The number indicates the number of ignition switch cycles from to.) ontrol unit name (Reception diagnosis) UW 0 Unable to transmit signals for 2 seconds or more at present ormal at present and in the past ormal at present, but unable to receive signals for 2 seconds or more in the past. (The number indicates the number of ignition switch cycles from to.) UW 0 Unable to receive signals for 2 seconds or more at present. iagnosis not performed. o control unit for receiving signals. (o applicable optional parts) -13

14 TRU SS < SYSTM SRT > [ UMT] ow to Use ommunication Signal hart : The communication signal chart lists the signals transmitted/received among control units. t is useful for detecting the root cause by finding a signal related to the symptom, and by checking transmission and reception unit. SM

15 SS RR WRW < S ST > [ UMT] S ST SS RR WRW Trouble iagnosis low hart : SM0528 Trouble iagnosis rocedure : TRVW WT USTMR nterview with the customer is important to detect the root cause of communication system errors and to understand vehicle condition and symptoms for proper trouble diagnosis. oints in interview What: arts name, system name When: ate, requency Where: Road condition, lace n what condition: riving condition/environment Result: Symptom otes for checking error symptoms: heck normal units as well as error symptoms. - xample: ircuit between M and the combination meter is judged normal if the customer indicates tachometer functions normally. When a communication system error is present, multiple control units may malfunction or go into failsafe mode. -15

16 SS RR WRW < S ST > [ UMT] ndication of the combination meter is important to detect the root cause because it is the most obvious to the customer, and it performs communication with many units. ST V T heck whether the symptom is reproduced or not. T: o not turn the ignition switch or disconnect the 12V battery cable while reproducing the error. The error may temporarily correct itself, making it difficult to determine the root cause. SYSTM TY (W T US SYSTM TY ST RT) etermine system type based on vehicle equipment. T: This chart is used if SUT does not automatically recognize system type. There are two styles for system type specification charts. epending on the number of available system types, either style or style may be used. System Type Specification hart (Style ) T: S

17 SS RR WRW < S ST > [ UMT] system type is easily checked with the vehicle equipment identification information shown in the chart. SM0529 System Type Specification hart (Style ) T: -17

18 SS RR WRW < S ST > [ UMT] system type is easily checked with the vehicle equipment identification information shown in the chart. SM0530 RT TRVW ST ill out the symptom described by the customer, vehicle condition, and system type on the interview sheet. -18

19 SS RR WRW < S ST > [ UMT] nterview Sheet (xample) SM0531 TT T RT US diagnosis function of SUT detects the root cause. -19

20 < W T US TS MU > W T US TS ST W T US TS MU W T US TS ST nformation : of Section describes information peculiar to a vehicle and inspection procedures. or trouble diagnosis procedure, refer to -15, "Trouble iagnosis low hart" of UM- T. bbreviation ist : ontrol unit name abbreviations in SUT diagnosis and in this section are as per the following list. bbreviation - S V M R -ST S/ S V/V V V T V/M M- M& STR TU ontrol unit name ir bag diagnosis sensor unit S actuator and electric unit (control unit) V control unit M lectrically-driven intelligent brake unit ata link connector lectric shift control module lectric parking brake control module S control unit VM / auto amp. i-ion battery controller Traction motor inverter M /R ombination meter n board charger Steering angle sensor TU -20

21 < RUT > RUT RUTS RUTS recaution for Technicians Using Medical lectric : RT RT WR: arts with strong magnet is used in this vehicle. Technicians using a medical electric device such as pacemaker must never perform operation on the vehicle, as magnetic field can affect the device function by approaching to such parts. RM R RUT WR: f a technician uses a medical electric device such as an implantable cardiac pacemaker or an implantable cardioverter defibrillator, the possible effects on the devices must be checked with the device manufacturer before starting the charge operation. s radiated electromagnetic wave generated by on board charger at normal charge operation may effect medical electric devices, a technician using a medical electric device such as implantable cardiac pacemaker or an implantable cardioverter defibrillator must not enter the vehicle compartment (including luggage room) during normal charge operation. RUT T TMTS SYSTM RT WR: f a technician uses implantable cardiac pacemaker or implantable cardioverter defibrillator (), avoid the device implanted part from approaching within approximately 220 mm (8.66 in) from interior/exterior antenna. The electromagnetic wave of TU might affect the function of the implantable cardiac pacemaker or the implantable cardioverter defibrillator (), when using the service, etc. f a technician uses other medical electric devices than implantable cardiac pacemaker or implantable cardioverter defibrillator (), the electromagnetic wave of TU might affect the function of the device. The possible effects on the devices must be checked with the device manufacturer before TU use. RUT T TT Y SYSTM RT WR: f a technician uses implantable cardiac pacemaker or implantable cardioverter defibrillator (), avoid the device implanted part from approaching within approximately 220 mm (8.66 in) from interior/exterior antenna. The electromagnetic wave of ntelligent ey might affect the function of the implantable cardiac pacemaker or the implantable cardioverter defibrillator (), at door operation, at each request switch operation, or at engine starting. f a technician uses other medical electric devices than implantable cardiac pacemaker or implantable cardioverter defibrillator (), the electromagnetic wave of ntelligent ey might affect the function of the device. The possible effects on the devices must be checked with the device manufacturer before ntelligent ey use. igh Voltage recautions R: : Since hybrid vehicles and electric vehicles contain a high voltage battery, there is the risk of electric shock, electric leakage, or similar accidents if the high voltage component and vehicle are handled incorrectly. e sure to follow the correct work procedures when performing inspection and maintenance. WR: e sure to remove the service plug in order to disconnect the high voltage circuits before performing inspection or maintenance of high voltage system harnesses and parts. The removed service plug must always be carried in a pocket of the responsible worker or placed in the tool box during the procedure to prevent the plug from being connected by mistake. -21

22 < RUT > RUTS e sure to wear insulated protective equipment before beginning work on the high voltage system. ever allow workers other than the responsible person to touch the vehicle containing high voltage parts. To keep others from touching the high voltage parts, these parts must be covered with an insulating sheet except when using them. UT: ever bring the vehicle into the RY status with the service plug removed unless otherwise instructed in the Service Manual. malfunction may occur if this is not observed. VT RSS QUMT TT ll the high voltage harnesses and connectors are orange. The i-ion battery and other high voltage devices include an orange high voltage label. ever touch these harnesses and high voltage parts. VT RSS TRMS mmediately insulate disconnected high voltage connectors and terminals with insulating tape. RUTS WRRS WT M TRS WR: The vehicle contains parts that contain powerful magnets. f a person who is wearing a heart pacemaker or other medical device is close to these parts, the medical device may be affected by the magnets. Such persons must not perform work on the vehicle. RT TMS T RRY UR T WR ybrid vehicles and electric vehicles contain parts with high voltage and intense magnetic force. ever carry metal products and magnetic recording media (e.g. cash card, prepaid card) to repair/inspect high voltage parts. f this is not observed, the metal products may create a risk of short circuit and the magnetic recording media may lose their magnetic recording. ST S R! VT R. UT -22

23 < RUT > RUTS ndicate " VT. T TU" on the vehicle under repair/inspection to call attention to other workers. S1600 recaution for Supplemental Restraint System (SRS) "R " and "ST T R-TSR" : The Supplemental Restraint System such as R and ST T R-TSR, used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS -23

24 < RUT > RUTS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted. nformation necessary to service the system safely is included in the SRS R and ST T of this Service Manual. WR: lways observe the following items for preventing accidental activation. To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision that would result in air bag inflation, all maintenance must be performed by an authorized SS/T dealer. mproper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. or removal of Spiral able and ir ag Module, see SRS R. ever use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors. RUTS W US WR TS (R R TR) MMRS WR: lways observe the following items for preventing accidental activation. When working near the ir ag iagnosis Sensor Unit or other ir ag System sensors with the power switch, never use air or electric power tools or strike near the sensor(s) with a hammer. eavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury. When using air or electric power tools or hammers, always switch the power switch, disconnect the 12V battery, and wait at least 3 minutes before performing any service. oint to e hecked efore Starting Maintenance Work : The high voltage system may starts automatically. t is required to check that the timer air conditioner and timer charge (during VS connection) are not set before starting maintenance work. T: f the timer air conditioner or timer charge (during VS connection) is set, the high voltage system starts automatically even when the power switch is in state. recautions for Removing attery Terminal When removing the 12V battery terminal, turn the power switch and wait at least 5 minutes. T: U may be active for several minutes after the power switch is turned. f the battery terminal is removed before U stops, then a T detection error or U data corruption may occur. lways disconnect the battery terminal within 60 minutes after turning the power switch. ven when the power switch is, the 12V battery automatic charge control may automatically start after a lapse of 60 minutes from power switch. isconnect 12V battery terminal according to the following steps. : WR RUR 1. heck that VS is not connected. T: f VS is connected, the air conditioning system may be automatically activated by the timer / function. 2. Turn the power switch. et out of the vehicle. lose all doors (including back door). 3. heck that the charge status indicator lamp does not blink and wait for 5 minutes or more. T: f the battery is removed within 5 minutes after the power switch is turned, plural Ts may be detected. 4. Remove 12V battery terminal within 60 minutes after turning the power switch. UT: S289-24

25 < RUT > RUTS fter all doors (including back door) are closed, if a door (including back door) is opened before battery terminals are disconnected, start over from Step 1. fter turning the power switch, if Remote / is activated by user operation, stop the air conditioner and start over from Step 1. T: nce the power switch is turned, the 12V battery automatic charge control does not start for approximately 1 hour. or vehicles with the 2-batteries, be sure to connect the main battery and the sub battery before turning the power switch. T: f the power switch is turned with any one of the terminals of main battery and sub battery disconnected, then T may be detected. fter installing the 12V battery, always check "Self iagnosis Result" of all Us and erase T. T: The removal of 12V battery may cause a T detection error. recautions for Trouble iagnosis : UT: ollow the instructions listed below. ailure to do this may cause damage to parts: ever apply 7.0 V or more to the measurement terminal. Use a tester with open terminal voltage of 7.0 V or less. Turn the power switch and disconnect the 12 V battery cable from the negative terminal when checking the harness. Refer to -24, "recautions for Removing recautions for arness Repair Solder the repaired area and wrap tape around the soldered area. T: fray of twisted lines must be within 110 mm (4.33 in). : S8766 ypass connection is never allowed at the repaired area. T: ypass connection may cause communication error. The spliced wire becomes separated and the characteristics of twisted line are lost. S8767 Replace the applicable harness as an assembly if error is detected on the shield lines of communication line. -25

26 < RRT > RRT RRT ommercial Service Tools RRT : Tool name escription nsulated gloves [uaranteed insulation performance for 1000V/300] Removing and installing high voltage components M0149ZZ eather gloves [Use leather gloves that can fasten the wrist tight] Removing and installing high voltage components rotect insulated gloves 0066ZZ nsulated safety shoes Removing and installing high voltage components 0011ZZ Safety glasses [S Z87.1] Removing and installing high voltage components To protect eye from the spatter on the work to electric line 0012ZZ ace shield Removing and installing high voltage components To protect face from the spatter on the work to electric line 0167ZZ nsulated helmet Removing and installing high voltage components 0013ZZ -26

27 < SYSTM SRT > SYSTM SRT MT RTS omponent arts ocation MT RTS : SM0701ZZ 1. ir bag diagnosis sensor unit 2. lectric shift control module 3. V control unit 4. / auto amp. 5. TU 6. VM 7. S actuator and electric unit (control unit) 8. Traction motor inverter 9. lectrically-driven intelligent brake unit 10. M /R 11. S control unit 12. M 13. ombination meter 14. Steering angle sensor 15. ata link connector 16. i-ion battery 17. lectric parking brake control module 18. n board charger -27

28 < SYSTM SRT > SYSTM MMUT SYSTM SYSTM MMUT SYSTM : System escription : SYSTM RM SRT (ontroller rea etwork) is a serial communication line for real time application. t is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). n communication, control units are connected with 2 communication lines (- line, - line) allowing a high rate of information transmission with less wiring. ach control unit transmits/receives data but selectively reads required data only. VM includes a gateway function and communicates signals between the communication circuit and V system circuit. Refer to V-19, "VM". ommunication Signal eneration SM

29 < SYSTM SRT > SYSTM Termination circuits (resistors) are connected across the communication system. When transmitting a communication signal, each control unit passes a current to the - line and the current returns to the - line. SM0450 The current flows separately into the termination circuits connected across the communication system and the termination circuits drop voltage to generate a potential difference between the - line and the - line. T: signal with no current passage is called Recessive and one with current passage is called ominant. SM0543 The system produces digital signals for signal communications, by using the potential difference. The onstruction of ommunication Signal (Message) SM0544ZZ SM0545ZZ -29

30 < SYSTM SRT > SYSTM o. Message name escription 1 Start of frame (1 bit) Start of message. 2 rbitration of field (11 bit) riorities of message-sending are shown when there is a possibility that multiple messages are sent at the same time. 3 ontrol field (6 bit) Signal quantity in data field is shown. 4 ata field (0-64 bit) ctual signal is shown. 5 R field (16 bit) 6 field (2 bit) 7 nd of frame (7 bit) nd of message. MMUT The communication line is a twisted pair wire consisting of strands of - (1) and - (2) and has noise immunity. The transmitting control unit calculates sending data in advance and writes the calculated value in a message. The receiving control unit calculates received data and judges that the data reception is normal when the calculated value is the same as the value written in the sent data. The completion of normal reception is sent to the transmitting control unit. SM0382ZZ T: The communication system has the characteristics of noise-resistant because this system produces digital signals by using the potential difference between the - line and the - line and has the twisted pair wire structure. Since the - line and the - line are always adjacent to each other, the same degree of noise occurs, respectively, when a noise (1) occurs. lthough the noise changes the voltage, the potential difference (2) between the - line and the - line is insensitive to noise. Therefore, noise-resistant signals can be obtained. SM0383ZZ S MMUTS ach control unit of the communication system transmits signals through the communication control circuit included in the control unit and receives only necessary signals from each control unit to perform various kinds of control. -30

31 < SYSTM SRT > xample: Transmitted signals SYSTM xample: Received signals SM0576 SM0577 T: The above signal names and signal communications are provided for reference purposes. or communications signals of this vehicle, refer to -33, " MMUT SYSTM : ommunication Signal hart". -31

32 < SYSTM SRT > SYSTM MMUT SYSTM : ommunication ontrol ircuit : communication control circuit is incorporated into the control unit and transmits/receives communication signals. SM0453 controller Transceiver oise filter omponent Termination circuit * (Resistance of approx. 120 Ω) System description t controls communication signal transmission and reception, error detection, etc. t converts digital signal into communication signal, and communication signal into digital signal. t eliminates noise of communication signal. enerates a potential difference between - and -. *: These are the only control units wired with both ends of communication system. MMUT SYSTM : System Specification hart etermine system type from the following specification chart. T: Refer to -15, "Trouble iagnosis rocedure" for how to use system specification chart. ody type 4-door hatch back Motor M61 xle 2W Transmission Reduction gear rake control V system type 1 communication control unit VM S actuator and electric unit (control unit) lectrically-driven intelligent brake unit M /R lectric parking brake control module ir bag diagnosis sensor unit V control unit ata link connector S control unit :

33 < SYSTM SRT > SYSTM ody type Motor xle Transmission rake control ombination meter Steering angle sensor M : pplicable V system control unit 4-door hatch back VM Traction motor inverter ata link connector lectric shift control module / auto amp. TU n board charger i-ion battery controller MMUT SYSTM : ommunication Signal hart : Refer to -14, "ow to Use ommunication Signal hart" for how to use communication signal chart. T: Refer to -20, "bbreviation ist" for the abbreviations of the connecting units. T: Transmit R: Receive communication circuit M61 2W Reduction gear V V system circuit Signal name M STR M& S V - S/ M- R S V/V V/M -ST V TU V T uzzer output signal T R T aytime running light request signal * T R oor switch signal T R R R ront fog light request signal T R R ront wiper request signal T R ront wiper service position signal T R igh beam request signal T R R orn reminder signal T R ow beam request signal T R ow tire pressure warning lamp signal T R Meter display signal T R osition light request signal T R R Rear window defogger control signal T R T R Sleep wake up signal T R R R -33

34 < SYSTM SRT > SYSTM communication circuit V system circuit Signal name M STR M& S V - S/ M- R S V/V V/M -ST V TU V T Stop lamp switch signal T Theft warning horn request signal T R TMS malfunction warning lamp signal T R Turn indicator signal T R Steering angle sensor signal T R R R rake fluid level switch signal T R dometer signal R T R R arking brake switch signal T R Seat belt buckle switch signal (driver side) R T R Sleep-ready signal R T T Vehicle speed signal (Meter) R T R R R R Wake up signal R T S warning lamp signal R T urrent time signal T R ar crash information signal T R lectric parking brake indicator lamp signal R T Master warning signal R T ront wiper status signal T R ront wiper stop position signal R T igh beam status signal T R ood switch signal R T R T nterlock/ switch signal T R ow beam status signal T R position signal R T R R T ower switch signal T R R ower switch (push switch) status signal R T rake assist request signal T R rake backup operation signal T R rake fluid pressure command signal T R rake system warning lamp signal R T rake warning lamp signal R T T lectrically-driven intelligent brake control T R signal Target braking force signal T R S actuator and electric unit (control unit) R T control signal S warning lamp signal R T rake warning lamp signal R T R R T T R -34

35 < SYSTM SRT > SYSTM Signal name ecel signal R R T malfunction signal R T operation signal R T ront wheel speed signal R T ront R wheel speed signal R T Rear wheel speed signal R R T Rear R wheel speed signal R R T Side signal R T Stop lamp relay signal R T TS operation signal R T R Torque limit request signal T R V indicator lamp signal R T V operation signal R T R V warning lamp signal R T Vehicle speed signal (S) R R R R R T R T Yaw rate signal R T 12-volt battery charge warning lamp request signal R T / consumption power status display signal / consumption signal R R T / expected consumption signal T R / maximum power signal T R / average electricity consumption for driving range signal / average electricity consumption for driving range signal M STR M& R T R T communication circuit S ccelerator pedal position signal R R T S status signal R T harge status signal T R ompressor inhibition signal T R urrent motor power signal R R T urrent regenerative torque signal R T riving range difference signal R T T R riving range flashing request signal R T riving range request signal R T riving range signal R T mode request signal T R tree signal R R T lectricity consumption signal R T V R R R - S/ M- R S V/V T T T V/M V system circuit -ST R V TU V T -35

36 < SYSTM SRT > SYSTM communication circuit V system circuit Signal name M STR M& S V - S/ M- R S V/V V/M -ST V TU V T /S relay status signal T R igh voltage power supply status signal T R nstant indicator signal R T eep S request signal T R i-ion battery charging data signal R T i-ion battery temperature signal R T ow battery charge warning lamp request signal R T Maximum charge power signal T R Maximum motor output power signal R T Maximum regenerable power signal R T Motor charge preparation request signal T R Motor discharge request signal T R Motor torque control signal R T ext charge time signal R T ext departure time signal R T ext pre-/ time signal R T thers consumption signal R R T lug in warning display signal R T ower limitation cause signal R T ower limitation indicator lamp request signal R T ower permit signal R T ower steering start activation request signal R T re-/ priority signal R T re-/ status signal T R re-/ timer signal R T ulse signal signal T R RY condition signal R T RY to drive indicator lamp request signal R T Rear window defogger status signal T R Refrigerant pressure signal T R Regenerative torque command signal T R Remaining time to charge completion (100 V) signal R R T R Remaining time to charge completion (200 V) signal R R T R Shift range request display signal R T Soon charge switch request signal R T System cut off signal T R Target i-ion battery remained energy signal T -36 R

37 < SYSTM SRT > SYSTM Signal name M STR Target motor torque signal T R Timer / request signal T R Traction motor consumption signal R T VM activation/deactivation command signal R T R VM control signal R R T VM status signal R R R T R Vehicle stop and parking brake operation R T request display signal Vibration control switching signal T R iagnostic trouble code signal R T T T igh voltage discharge permit signal R T T igh voltage power supply preparation completion signal R T nput high voltage signal R T M& communication circuit S V V system circuit Motor discharge status signal R T Motor speed signal R R T Motor torque limit signal R T System main relay permit signal R T T lectric shift warning lamp signal R T R T lectric shift warning massage signal R T R T Shift position signal R R T R R R R T R Shift refuse buzzer signal R T R T / switch signal R T mbient sensor signal R T R T lower fan signal R T vaporator temperature signal R T Target evaporator temperature signal R T Timer / operation time signal R T V harness interlock signal (T) R T Remote / request signal R T Remote charge request signal R T VM sleep signal R T input type signal R R T V system warning lamp request signal R T R T VS WM communication signal R T - S/ M- R S V/V V/M -ST V TU V T -37

38 < SYSTM SRT > SYSTM communication circuit V system circuit Signal name M STR M& S V - S/ M- R S V/V V/M -ST V TU V T V harness interlock signal () R T Quick charge voltage signal R T Quick charger connecting signal R T harge type signal R R T nsulation resistance signal R T i-ion battery available charge signal R T R T R i-ion battery capacity signal R R T R T R i-ion battery cell control signal R T i-ion battery charge completion signal R T i-ion battery chargeable power signal R T i-ion battery connector interlock signal R T i-ion battery current signal R R T i-ion battery dischargeable power signal R T i-ion battery gradual capacity loss signal R T R T R i-ion battery main relay cut request signal R T i-ion battery voltage signal R R T ext start time signal R T ower limit cause () signal R T Remaining time to charge completion signal R R T *: With daytime running light system -38

39 < WR RM > WR RM SYSTM SYSTM Wiring iagram : or connector terminal arrangements, harness layouts, and alphabets in a described in wiring diagram), refer to -12, "onnector nformation". (option abbreviation; if not MW

40 < WR RM > SYSTM MW

41 < S ST > SS RR WRW S ST SS RR WRW nterview Sheet T: Refer to -15, "Trouble iagnosis rocedure" for how to use interview sheet. : S

42 < T/RUT SS > T/RUT SS MUT R RT ommunication ircuit MUT R RT : M Malfunction area Main line between M /R and electric parking brake control module Main line between electric parking brake control module and data link connector -44, "iagnosis rocedure" -45, "iagnosis rocedure" Reference R Malfunction area VM branch line circuit ( communication circuit) S actuator and electric unit (control unit) branch line circuit lectrically-driven intelligent brake unit branch line circuit M /R branch line circuit lectric parking brake control module branch line circuit ir bag diagnosis sensor unit branch line circuit V control unit branch line circuit ata link connector branch line circuit ( communication circuit) S control unit branch line circuit ombination meter branch line circuit Steering angle sensor branch line circuit M branch line circuit Reference -49, "iagnosis rocedure" -50, "iagnosis rocedure" -51, "iagnosis rocedure" -52, "iagnosis rocedure" -53, "iagnosis rocedure" -54, "iagnosis rocedure" -55, "iagnosis rocedure" -56, "iagnosis rocedure" -57, "iagnosis rocedure" -58, "iagnosis rocedure" -59, "iagnosis rocedure" -60, "iagnosis rocedure" SRT RUT Malfunction area communication circuit V System ircuit M -70, "iagnosis rocedure" Reference : Malfunction area Main line between traction motor inverter and data link connector Main line between data link connector and on board charger R -46, "iagnosis rocedure" -48, "iagnosis rocedure" Reference Malfunction area VM branch line circuit (V system circuit) Traction motor inverter branch line circuit ata link connector branch line circuit (V system circuit) lectric shift control module branch line circuit / auto amp. branch line circuit Reference -61, "iagnosis rocedure" -62, "iagnosis rocedure" -63, "iagnosis rocedure" -64, "iagnosis rocedure" -65, "iagnosis rocedure" -42

43 < T/RUT SS > MUT R RT Malfunction area TU branch line circuit n board charger branch line circuit i-ion battery controller branch line circuit SRT RUT Malfunction area V system circuit Reference -66, "iagnosis rocedure" -67, "iagnosis rocedure" -68, "iagnosis rocedure" Reference -72, "iagnosis rocedure" -43

44 < T/RUT SS > M TW M- S/ RUT M TW M- S/ RUT iagnosis rocedure : TR 3. heck the following terminals and connectors for damage, bend and loose connection (connector side and harness side). - arness connector arness connector 7 YS >> T 2. >> Repair the terminal and connector. 2. RSS TUTY ( RUT) 1. isconnect the following harness connectors. - M /R - arness connectors 107 and 7 2. heck the continuity between the M /R harness connector and the harness connector. M /R harness connector arness connector onnector o. onnector o. ontinuity 27 1 xisted xisted YS >> T 3. >> Repair the main line between the M /R and the harness connector RSS TUTY ( RUT) 1. isconnect the connector of electric parking brake control module. 2. heck the continuity between the harness connector and the electric parking brake control module harness connector. arness connector lectric parking brake control module harness connector onnector o. onnector o. ontinuity 1 16 xisted xisted YS (resent error)>>onnect all the connectors and diagnose again. Refer to -15, "Trouble iagnosis low hart". YS (ast error)>>rror was detected in the main line between the M /R and the electric parking brake control module. >> Repair the main line between the harness connector 7 and the electric parking brake control module. -44

45 < T/RUT SS > M TW S/ RUT M TW S/ RUT iagnosis rocedure : TR 3. heck the following terminals and connectors for damage, bend and loose connection (connector side and harness side). - arness connector 3 - arness connector M21 YS >> T 2. >> Repair the terminal and connector. 2. RSS TUTY ( RUT) 1. isconnect the following harness connectors. - lectric parking brake control module - arness connectors 3 and M21 2. heck the continuity between the electric parking brake control module harness connector and the harness connector. lectric parking brake control module harness connector arness connector onnector o. onnector o xisted xisted YS >> T 3. >> Repair the main line between the electric parking brake control module and the harness connector RSS TUTY ( RUT) heck the continuity between the harness connector and the data link connector. arness connector ata link connector onnector o. onnector o. M21 ontinuity ontinuity 31 6 xisted M xisted YS (resent error)>>onnect all the connectors and diagnose again. Refer to -15, "Trouble iagnosis low hart". YS (ast error)>>rror was detected in the main line between the electric parking brake control module and the data link connector. >> Repair the main line between the harness connector M21 and the data link connector. -45

46 < T/RUT SS > M TW V/M RUT M TW V/M RUT iagnosis rocedure : TR 3. heck the following terminals and connectors for damage, bend and loose connection (connector side and harness side). - arness connector 2 - arness connector 60 - arness connector arness connector M77 YS >> T 2. >> Repair the terminal and connector. 2. RSS TUTY ( RUT) 1. isconnect the following harness connectors. - Traction motor inverter - arness connectors 2 and heck the continuity between the traction motor inverter harness connector and the harness connector. Traction motor inverter harness connector 12 5 xisted xisted YS >> T 3. >> Repair the main line between the traction motor inverter and the harness connector RSS TUTY ( RUT) 1. isconnect the harness connectors 105 and M heck the continuity between the harness connectors. arness connector onnector o. onnector o. arness connector arness connector onnector o. onnector o xisted xisted YS >> T 4. >> Repair the main line between the harness connector 60 and the harness connector RSS TUTY ( RUT) heck the continuity between the harness connector and the data link connector. arness connector ata link connector onnector o. onnector o. M77 ontinuity ontinuity ontinuity xisted M xisted YS (resent error)>>onnect all the connectors and diagnose again. Refer to -15, "Trouble iagnosis low hart". -46

47 < T/RUT SS > M TW V/M RUT YS (ast error)>>rror was detected in the main line between the traction motor inverter and the data link connector. >> Repair the main line between the harness connector M77 and the data link connector. -47

48 < T/RUT SS > M TW RUT M TW RUT iagnosis rocedure : TR 3. heck the following terminals and connectors for damage, bend and loose connection (connector side and harness side). - arness connector M21 - arness connector 3 YS >> T 2. >> Repair the terminal and connector. 2. RSS TUTY ( RUT) 1. isconnect the harness connectors M21 and heck the continuity between the data link connector and the harness connector. ata link connector arness connector onnector o. onnector o. M4 YS >> T 3. >> Repair the main line between the data link connector and the harness connector M RSS TUTY ( RUT) ontinuity xisted M xisted 1. isconnect the connector of on board charger. 2. heck the continuity between the harness connector and the on board charger harness connector. arness connector n board charger harness connector onnector o. onnector o. ontinuity xisted xisted YS (resent error)>>onnect all the connectors and diagnose again. Refer to -15, "Trouble iagnosis low hart". YS (ast error)>>rror was detected in the main line between the data link connector and the on board charger. >> Repair the main line between the harness connector 3 and the on board charger. -48

49 V/V R RUT ( MMUT RUT) < T/RUT SS > V/V R RUT ( MMUT RUT) iagnosis rocedure 1. TR : heck the terminals and connectors of the VM for damage, bend and loose connection (unit side and connector side). YS >> T 2. >> Repair the terminal and connector. 2. RSS R RUT 1. isconnect the connector of VM. 2. heck the resistance between the VM harness connector terminals. onnector o. VM harness connector s the measurement value within the specification? YS >> T 3. >> Repair the VM branch line ( communication circuit side). 3. WR SUY RU RUT Resistance (Ω) pprox heck the power supply and the ground circuit of the VM. Refer to V-105, "VM : iagnosis rocedure". YS (resent error)>>replace the VM. Refer to V-369, "Removal and nstallation". YS (ast error)>>rror was detected in the VM branch line ( communication circuit side). >> Repair the power supply and the ground circuit. -49

50 < T/RUT SS > S R RUT iagnosis rocedure S R RUT : TR 3. heck the terminals and connectors of the S actuator and electric unit (control unit) for damage, bend and loose connection (unit side and connector side). YS >> T 2. >> Repair the terminal and connector. 2. RSS R RUT 1. isconnect the connector of S actuator and electric unit (control unit). 2. heck the resistance between the S actuator and electric unit (control unit) harness connector terminals. onnector o. S actuator and electric unit (control unit) harness connector Resistance (Ω) pprox s the measurement value within the specification? YS >> T 3. >> Repair the S actuator and electric unit (control unit) branch line. 3. WR SUY RU RUT heck the power supply and the ground circuit of the S actuator and electric unit (control unit). Refer to R-129, "iagnosis rocedure". YS (resent error)>>replace the S actuator and electric unit (control unit). Refer to R-151, "Removal and nstallation". YS (ast error)>>rror was detected in the S actuator and electric unit (control unit) branch line. >> Repair the power supply and the ground circuit. -50