WIPER & WASHER SECTION WW CONTENTS DRIVER CONTROLS WW-1 PRECAUTION... 3 PREPARATION... 5 ECU DIAGNOSIS INFORMATION...22 SYSTEM DESCRIPTION...

Transcription

1 DRIVER CONTROLS SECTION WW A WIPER & WASHER B C D CONTENTS E PRECAUTION... 3 PRECAUTIONS... 3 Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TEN- SIONER"...3 Precaution for Procedure without Cowl Top Cover...3 Precaution for Work...3 PREPARATION... 5 PREPARATION... 5 Special Service Tools...5 SYSTEM DESCRIPTION... 6 COMPONENT PARTS... 6 Component Parts Location...6 Rain Sensor...7 Washer Switch...7 Front Wiper Motor...7 Washer Fluid Level Switch...8 Front Washer Motor...8 SYSTEM... 9 FRONT WIPER AND WASHER SYSTEM...9 FRONT WIPER AND WASHER SYSTEM : System Description...9 FRONT WIPER AND WASHER SYSTEM : Fail- Safe...12 INFORMATION DISPLAY (COMBINATION METER)...12 INFORMATION DISPLAY (COMBINATION METER) : Washer Fluid Warning...12 WARNING/INDICATOR/CHIME LIST...14 WARNING/INDICATOR/CHIME LIST : Warning/ Indicator (Information Display)...14 DIAGNOSIS SYSTEM (BCM)...15 COMMON ITEM...15 COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)...15 WIPER...16 WIPER : CONSULT Function (BCM - WIPER)...16 DIAGNOSIS SYSTEM (IPDM E/R)...18 Diagnosis Description...18 CONSULT Function (IPDM E/R)...20 ECU DIAGNOSIS INFORMATION...22 BCM, IPDM E/R...22 List of ECU Reference...22 WIRING DIAGRAM...23 WIPER AND WASHER SYSTEM...23 Wiring Diagram...23 BASIC INSPECTION...27 DIAGNOSIS AND REPAIR WORK FLOW...27 Work Flow...27 DTC/CIRCUIT DIAGNOSIS...29 WIPER AND WASHER FUSE...29 Diagnosis Procedure...29 FRONT WIPER MOTOR LO CIRCUIT...30 Component Function Check...30 Diagnosis Procedure...30 FRONT WIPER MOTOR HI CIRCUIT...32 Component Function Check...32 Diagnosis Procedure...32 FRONT WIPER STOP POSITION SIGNAL CIRCUIT...34 Component Function Check...34 Diagnosis Procedure...34 F G H I J K WW M N O P WW-1

2 FRONT WIPER MOTOR GROUND CIRCUIT Diagnosis Procedure WASHER MOTOR CIRCUIT Diagnosis Procedure RAIN SENSOR Component Function Check Diagnosis Procedure WASHER SWITCH Component Inspection SYMPTOM DIAGNOSIS WIPER AND WASHER SYSTEM SYMPTOMS Symptom Table NORMAL OPERATING CONDITION Description FRONT WIPER DOES NOT OPERATE Description Diagnosis Procedure REMOVAL AND INSTALLATION FRONT WIPER Exploded View WIPER ARM WIPER ARM : Removal and Installation WIPER ARM : Adjustment WIPER BLADE WIPER BLADE : Removal and Installation WIPER REFILL WIPER REFILL : Removal and Installation WIPER DRIVE ASSEMBLY WIPER DRIVE ASSEMBLY : Removal and Installation WIPER MOTOR WIPER MOTOR : Removal and Installation WASHER TANK Exploded View Removal and Installation FRONT WASHER MOTOR Removal and Installation WASHER FLUID LEVEL SWITCH Removal and Installation WASHER NOZZLE AND TUBE Exploded View WASHER NOZZLE WASHER NOZZLE : Removal and Installation WASHER NOZZLE : Inspection and Adjustment WASHER TUBE WASHER TUBE : Removal and Installation RAIN SENSOR Exploded View Removal and Installation WIPER AND WASHER SWITCH Exploded View SERVICE DATA AND SPECIFICATIONS (SDS) SERVICE DATA AND SPECIFICATIONS (SDS) Specifications WW-2

3 < PRECAUTION > PRECAUTION PRECAUTIONS PRECAUTIONS Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" INFOID: The Supplemental Restraint System such as AIR BAG and SEAT BELT PRE-TENSIONER, 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. Information necessary to service the system safely is included in the SR and SB section of this Service Manual. WARNING: To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer. Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see the SR section. Do not 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. PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS WARNING: When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a hammer. Heavy 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 Ignition OFF, disconnect the battery and wait at least three minutes before performing any service. Precaution for Procedure without Cowl Top Cover When performing the procedure after removing cowl top cover, cover the lower end of windshield with urethane, etc to prevent damage to windshield. INFOID: A B C D E F G H I J K WW M Precaution for Work WW-3 INFOID: When removing or disassembling each component, be careful not to damage or deform it. If a component may be subject to interference, be sure to protect it with a shop cloth. When removing (disengaging) components with a screwdriver or similar tool, be sure to wrap the component with a shop cloth or vinyl tape to protect it. Protect the removed parts with a shop cloth and prevent them from being dropped. Replace a deformed or damaged clip. If a part is specified as a non-reusable part, always replace it with a new one. Be sure to tighten bolts and nuts securely to the specified torque. After installation is complete, be sure to check that each part works properly. Follow the steps below to clean components. - Water soluble dirt: Dip a soft cloth into lukewarm water, wring the water out of the cloth and wipe the dirty area. Then rub with a soft, dry cloth. -Oily dirt: PIIB3706J N O P

4 < PRECAUTION > PRECAUTIONS Dip a soft cloth into lukewarm water with mild detergent (concentration: within 2 to 3%) and wipe the dirty area. Then dip a cloth into fresh water, wring the water out of the cloth and wipe the detergent off. Then rub with a soft, dry cloth. - Do not use organic solvent such as thinner, benzene, alcohol or gasoline. - For genuine leather seats, use a genuine leather seat cleaner. WW-4

5 < PREPARATION > PREPARATION PREPARATION Special Service Tools PREPARATION INFOID: A B The actual shape of the tools may differ from those illustrated here. Tool number (TechMate No.) Tool name (J-46534) Trim Tool Set Description Removing trim components C D E AWJIA0483ZZ F G H I J K WW M N O P WW-5

6 < SYSTEM DESCRIPTION > SYSTEM DESCRIPTION COMPONENT PARTS Component Parts Location COMPONENT PARTS INFOID: ALLIA1820ZZ A. View with washer tank removed from vehicle No. Component Function 1. Rain sensor* Refer to WW-7, "Rain Sensor". 2. IPDM E/R Controls integrated relays according to the request (via CAN communication) from BCM. Performs the auto stop control of front wiper. Refer to PCS-5, "Component Parts Location" for detailed installation location. 3. Front wiper motor Refer to WW-7, "Front Wiper Motor". WW-6

7 < SYSTEM DESCRIPTION > COMPONENT PARTS No. Component Function 4. BCM 5. Combination meter 6. *: For vehicles equipped with driver assistance system. Rain Sensor Combination switch (wiper and washer switch) Judges each switch status by the combination switch (wiper and washer switch) reading function. Requests (via CAN communication) the front wiper relay and the front wiper HI/LO relay ON to IPDM E/R. Refer to BCS-5, "BODY CONTROL SYSTEM : Component Parts Location" for detailed installation location. Transmits vehicle speed signal to BCM via CAN communication. Refer to MWI-5, "METER SYSTEM : Component Parts Location" for detailed installation location. Combination switch (wiper and washer switch): Transmits the status of the combination switch (wiper and washer switch) to BCM. Washer switch: Refer to WW-7, "Washer Switch". 7. Washer fluid level switch Refer to WW-8, "Washer Fluid Level Switch". 8. Front washer motor Refer to WW-8, "Front Washer Motor". Detects water droplets on the windshield with infrared rays, and transmits the rain sensor signal to BCM via the rain sensor serial link. INFOID: A B C D E F G H I Washer Switch ALLIA1851ZZ INFOID: J Washer switch is integrated with combination switch (wiper and washer switch). Washer pump is grounded through the combination switch (wiper and washer switch) while the washer switch is ON. K WW M Front Wiper Motor Controls front wiper operation with IPDM E/R control. Transmits front wiper stop position signal to IPDM E/R. ALLIA1764ZZ INFOID: N O P WW-7 ALLIA1765ZZ

8 < SYSTEM DESCRIPTION > Washer Fluid Level Switch COMPONENT PARTS INFOID: Detects that washer fluid level is low and transmits washer level signal to combination meter. Front Washer Motor ALLIA1766ZZ INFOID: Washer fluid is sprayed according to washer switch status. ALLIA1767ZZ WW-8

9 < SYSTEM DESCRIPTION > SYSTEM SYSTEM FRONT WIPER AND WASHER SYSTEM FRONT WIPER AND WASHER SYSTEM : System Description SYSTEM DIAGRAM INFOID: A B C D E F *:For vehicles equipped with driver assistance system. OUTLINE The front wiper is controlled by each function of BCM and IPDM E/R. Control by BCM: Combination switch (wiper and washer switch) reading function Front wiper control function ALLIA1882GB G H I Control by IPDM E/R: Front wiper control function Relay control function FRONT WIPER BASIC OPERATION BCM detects the combination switch (wiper and washer switch) condition by the combination switch (wiper and washer switch) reading function. BCM transmits the front wiper request signal to IPDM E/R via CAN communication depending on each operating condition of the front wiper. IPDM E/R turns ON/OFF the integrated front wiper relay and the front wiper HI/LO relay according to the front wiper request signal. IPDM E/R provides the power supply to operate the front wiper HI/LO operation. FRONT WIPER LO OPERATION BCM transmits the front wiper request signal (LO) to IPDM E/R via CAN communication according to the front wiper LO operating condition. Front wiper LO operating condition: - Ignition switch ON - Front wiper switch LO or front wiper switch MIST (while pressing) IPDM E/R turns ON the integrated front wiper relay according to the front wiper request signal (LO). FRONT WIPER HI OPERATION BCM transmits the front wiper request signal (HI) to IPDM E/R via CAN communication according to the front wiper HI operating condition. J K WW M N O P Front wiper HI operating condition: - Ignition switch ON - Front wiper switch HI IPDM E/R turns ON the integrated front wiper relay and the front wiper HI/LO relay according to the front wiper request signal (HI). FRONT WIPER AUTO OPERATION WW-9

10 < SYSTEM DESCRIPTION > SYSTEM Rain Detection Rain level and sensor conditions are detected by rain sensor. BCM transmits the vehicle conditions (vehicle speed, front wiper condition, rain sensor sensitivity setting, etc.) to the rain sensor via the rain sensor serial link. Rain sensor judges a wiping speed for front wiper by rain condition and the vehicle conditions. It transmits the wiping speed request signal to the BCM via the rain sensor serial link. Auto Wiping Operation BCM receives the wiping speed request signal from the rain sensor via the rain sensor serial link. BCM controls front wiper operation according to the wiping speed request signals. It transmits the front wiper request signals (LO or HI) to the IPDM E/R via CAN communication line. Front wiper AUTO operating condition - Ignition switch ON - Front wiper switch AUTO NOTE: When the front wiper switch is turned to AUTO position, the front wiper operates once regardless of rainy conditions. Factory setting of the front wiper AUTO operation is operation linked with rain sensor. Front wiper AUTO operation can be set to operation linked or not linked with rain sensor using CONSULT. Refer to WW-16, "WIPER : CONSULT Function (BCM - WIPER)". Rain Sensor Sensitivity Setting BCM determines rain sensor sensitivity according to wiper volume dial position. Wiper volume dial position Sensitivity 1 High sensitivity 2 Medium high sensitivity 3 Low medium sensitivity 4 Low sensitivity NOTE: When the wiper volume dial position is turned up by 1 level under front wiper AUTO operating condition, the front wiper operates once. Splash mode operation The front wiper is operated at HI regardless of the wiper volume adjustment position when water drops are instantaneously sprayed over the windshield glass due to water splash from oncoming vehicles or other causes. After that, AUTO operation is performed depending on the amount of water drops. SPLASH MODE OPERATION CONDITIONS Front wiper switch AUTO Ignition switch ON NOTE: Splash mode is not operated and auto wiping operation is performed while the vehicle is stopped. FRONT WIPER INT OPERATION BCM transmits the front wiper request signal (INT) to IPDM E/R via CAN communication depending on the front wiper INT operating condition and intermittent operation delay interval according to the wiper volume dial position. Front wiper INT operating condition: - Ignition switch ON - Front wiper switch INT IPDM E/R turns ON the integrated front wiper relay so that the front wiper is operated only once according to the front wiper request signal (INT). BCM detects stop position/except stop position of the front wiper motor according to the front wiper stop position signal received from IPDM E/R via CAN communication. WW-10

11 < SYSTEM DESCRIPTION > SYSTEM BCM transmits the front wiper request signal (INT) again after the intermittent operation delay interval. A B C NOTE: Front wiper intermittent operation can be set to operation linked or not linked with vehicle speed using CON- SULT. Refer to WW-16, "WIPER : CONSULT Function (BCM - WIPER)". Front wiper intermittent operation with vehicle speed BCM calculates the intermittent operation delay interval from the following: - Vehicle speed signal - Wiper volume dial position Intermittent operation delay Interval Wiper volume dial position Intermittent operation interval 0 5 km/h (0 3.1 MPH) Vehicle speed 5 65 km/h ( MPH)* JPLIA1256GB Unit: Second 65 km/h (40.4 MPH) or more 1 Short Long *: When operation setting is not linked with vehicle speed. FRONT WIPER AUTO STOP OPERATION BCM stops transmitting the front wiper request signal when the front wiper switch is turned OFF. IPDM E/R detects the front wiper stop position signal from the front wiper motor and detects the front wiper motor position (stop position/except stop position). When the front wiper request signal is stopped, IPDM E/R turns ON the front wiper relay until the front wiper motor returns to the stop position. D E F G H I J K WW M N O P NOTE: BCM stops the transmitting of the front wiper request signal when the ignition switch is OFF. IPDM E/R turns the front wiper relay OFF when the ignition switch is OFF. WW-11 JPLIA0410GB

12 SYSTEM < SYSTEM DESCRIPTION > FRONT WIPER OPERATION LINKED WITH WASHER BCM transmits the front wiper request signal (LO) to IPDM E/R via CAN communication according to the washer linked operating condition of the front wiper. BCM transmits the front wiper request signal (LO) so that the front wiper operates approximately 2 times when the front washer switch OFF is detected. Washer linked operating condition of front wiper: - Ignition switch ON - Front washer switch ON (0.4 second or more) IPDM E/R turns ON the integrated front wiper relay according to the front wiper request signal (LO). The washer pump is grounded through the combination switch (wiper and washer switch) with the front washer switch ON. FRONT WIPER AND WASHER SYSTEM : Fail-Safe INFOID: CAN COMMUNICATION CONTROL When CAN communication with ECM and BCM is impossible, IPDM E/R performs fail-safe control. After CAN communication recovers normally, it also returns to normal control. If No CAN Communication Is Available With BCM Control part Front wiper motor Fail-safe operation The status just before activation of fail-safe control is maintained until the ignition switch is turned OFF while the front wiper is operating at LO or HI speed. The wiper is operated at LO speed until the ignition switch is turned OFF if the fail-safe control is activated while the front wiper is set in the INT mode and the front wiper motor is operating. Automatically returns wiper to stop position when ignition switch is turned ON if fail-safe control is activated while front wiper motor is operated and wiper stop is in any other position than stop position. FRONT WIPER PROTECTION FUNCTION IPDM E/R detects front wiper stop position by a front wiper stop position signal. When a front wiper stop position signal is in the conditions listed below, IPDM E/R stops power supply to wiper after repeating a front wiper 10 seconds activation and 20 seconds stop. Ignition switch Front wiper switch Front wiper stop position signal ON OFF ON NOTE: This operation status can be confirmed on the IPDM E/R Data Monitor that displays BLOCK for the item WIP PROT while the wiper is stopped. INFORMATION DISPLAY (COMBINATION METER) INFORMATION DISPLAY (COMBINATION METER) : Washer Fluid Warning DESIGN/PURPOSE Washer fluid warning reminds driver the washer fluid is insufficient. The front wiper stop position signal (stop position) can not be input for 10 seconds. The front wiper stop position signal does not change for 10 seconds. INFOID: WW-12

13 < SYSTEM DESCRIPTION > SYSTEM Symbol Message A B Low Washer Fluid C D JMLIA4123ZZ SYNCHRONIZATION WITH MASTER WARNING LAMP Not applicable SYSTEM DIAGRAM E F G H I J ALLIA1772GB SIGNAL PATH When washer fluid level is low, washer fluid level switch turns ON and transmits washer fluid level switch signal to combination meter. Combination meter displays washer fluid warning according to washer fluid level switch signal. WARNING/INDICATOR OPERATING CONDITION When all of the conditions listed below are satisfied: Ignition switch is ON. Washer fluid is insufficient. (Washer fluid level switch is ON and 3 minutes have passed) WARNING/INDICATOR CANCEL CONDITION When any of the condition listed below is satisfied: Ignition switch is OFF. After the washer fluid is refilled. (Washer fluid level switch is OFF and 30 seconds have passed) TIMING CHART K WW M N O P JMLIA4124GB WW-13

14 < SYSTEM DESCRIPTION > SYSTEM WARNING/INDICATOR/CHIME LIST WARNING/INDICATOR/CHIME LIST : Warning/Indicator (Information Display) INFOID: Item Low windshield-washer fluid warning light Reference Refer to WW-12, "INFORMATION DISPLAY (COMBINATION METER) : Washer Fluid Warning". WW-14

15 < SYSTEM DESCRIPTION > DIAGNOSIS SYSTEM (BCM) COMMON ITEM DIAGNOSIS SYSTEM (BCM) COMMON ITEM : CONSULT Function (BCM - COMMON ITEM) APPLICATION ITEM CONSULT performs the following functions via CAN communication with BCM. Direct Diagnostic Mode ECU Identification Self Diagnostic Result Data Monitor Active Test Work support Configuration CAN Diag Support Mntr SYSTEM APPLICATION BCM can perform the following functions: The BCM part number is displayed. The BCM self diagnostic results are displayed. Description The BCM input/output data is displayed in real time. The BCM activates outputs to test components. The settings for BCM functions can be changed. The vehicle specification can be read and saved. The vehicle specification can be written when replacing BCM. The result of transmit/receive diagnosis of CAN communication is displayed. INFOID: A B C D E F G System Sub System ECU Identification Self Diagnostic Result Direct Diagnostic Mode Data Monitor Active Test Work support Configuration CAN Diag Support Mntr H I J Door lock DOOR LOCK Rear window defogger REAR DEFOGGER Warning chime BUZZER Interior room lamp timer INT LAMP Exterior lamp HEADLAMP Wiper and washer WIPER Turn signal and hazard warning lamps FLASHER Air conditioner AIR CONDITIONER Intelligent Key system INTELLIGENT KEY Combination switch COMB SW BCM BCM Immobilizer IMMU Interior room lamp battery saver BATTERY SAVER Trunk TRUNK Vehicle security system THEFT ALM RAP system RETAINED PWR Signal buffer system SIGNAL BUFFER TPMS AIR PRESSURE MONITOR FREEZE FRAME DATA (FFD) K WW M N O P WW-15

16 < SYSTEM DESCRIPTION > DIAGNOSIS SYSTEM (BCM) The BCM records the following vehicle condition at the time a particular DTC is detected, and displays it on CONSULT. CONSULT screen item Indication/Unit Description Vehicle Speed km/h Vehicle speed at the moment a particular DTC is detected Odo/Trip Meter km Total mileage (Odometer value) at the moment a particular DTC is detected SLEEP>LOCK While turning BCM status from low power consumption mode to normal mode (Power supply position is LOCK *). SLEEP>OFF While turning BCM status from low power consumption mode to normal mode (Power supply position is OFF.) LOCK>ACC While turning power supply position from LOCK *to ACC ACC>ON While turning power supply position from ACC to IGN RUN>ACC While turning power supply position from RUN to ACC (Vehicle is stopped and selector lever is in P position.) CRANK>RUN While turning power supply position from CRANKING to RUN (From cranking up the engine to run it) RUN>URGENT While turning power supply position from RUN to ACC (Emergency stop operation) ACC>OFF While turning power supply position from ACC to OFF Vehicle Condition OFF>LOCK OFF>ACC ON>CRANK Power position status at the moment a particular DTC is detected* While turning power supply position from OFF to LOCK * While turning power supply position from OFF to ACC While turning power supply position from IGN to CRANKING OFF>SLEEP While turning BCM status from normal mode (Power supply position is OFF.) to low power consumption mode LOCK>SLEEP While turning BCM status from normal mode (Power supply position is LOCK *.) to low power consumption mode LOCK Power supply position is LOCK (Ignition switch OFF)* OFF Power supply position is OFF (Ignition switch OFF) ACC Power supply position is ACC (Ignition switch ACC) ON Power supply position is IGN (Ignition switch ON with engine stopped) ENGINE RUN Power supply position is RUN (Ignition switch ON with engine running) CRANKING Power supply position is CRANKING (At engine cranking) IGN Counter 0-39 The number of times that ignition switch is turned ON after DTC is detected The number is 0 when a malfunction is detected now. The number increases like after returning to the normal condition whenever ignition is switched OFF ON. The number is fixed to 39 until the self-diagnosis results are erased if it is over 39. NOTE: *: Power supply position shifts to LOCK from OFF, when ignition switch is in the OFF position, selector lever is in the P position, and any of the following conditions are met: Closing door Opening door Door is locked using door request switch Door is locked using Intelligent Key The power supply position shifts to ACC when the push-button ignition switch (push switch) is pushed at LOCK. WIPER WIPER : CONSULT Function (BCM - WIPER) INFOID: DATA MONITOR WW-16

17 < SYSTEM DESCRIPTION > Monitor Item [Unit] PUSH SW [On/Off] VEH SPEED 1 [km/h] FR WIPER HI [On/Off] FR WIPER LOW [On/Off] FR WASHER SW [On/Off] FR WIPER INT [On/Off] FR WIPER STOP [On/Off] INT VOLUME [1 7] RAIN SENSOR [On/Off] ACTIVE TEST Test Item FR WIPER WORK SUPPORT DIAGNOSIS SYSTEM (BCM) Description Indicates condition of push button ignition switch Indicates vehicle speed signal received from ABS on CAN communication line Indicates condition of wiper operation of combination switch Indicates front wiper auto stop signal received from IPDM E/R on CAN communication line Indicates condition of intermittent wiper operation of combination switch Indicates condition of rain sensor. Description This test is able to check front wiper operation [INT/Lo/Hi/Off]. A B C D E F Support Item Setting Description RAIN SENSOR On* Rain sensor function ON. Off Rain sensor function OFF WIPER SPEED SETTING On* Wiper speed setting function ON. Off Wiper speed setting function OFF. * : Initial setting G H I J K WW M N O P WW-17

18 < SYSTEM DESCRIPTION > DIAGNOSIS SYSTEM (IPDM E/R) Diagnosis Description DIAGNOSIS SYSTEM (IPDM E/R) INFOID: AUTO ACTIVE TEST Description In auto active test mode, the IPDM E/R sends a drive signal to the following systems to check their operation: Front wiper (LO, HI) Front fog lamps Parking lamps Side marker lamps Tail lamps License plate lamps Daytime running lamps Headlamps (LO, HI) A/C compressor (magnet clutch) Cooling fans (LO, HI) Operation Procedure CAUTION: Do not start the engine. NOTE: When auto active test is performed with hood opened, sprinkle water on windshield beforehand. NOTE: If auto active test mode cannot be actuated, check door switch system. Refer to DLK-98, "Component Function Check". When auto active test mode has to be canceled halfway through test, turn ignition switch OFF. 1. Close the hood and lift the wiper arms from the windshield (to prevent windshield damage due to wiper operation). 2. Turn ignition switch OFF. 3. Turn the ignition switch ON, and within 20 seconds, press the front door switch LH 10 times. Then turn the ignition switch OFF. 4. Turn the ignition switch ON within 10 seconds. After that, the horn sounds once and the auto active test starts. 5. After a series of the following operations is repeated 3 times, auto active test is completed. Inspection in Auto Active Test Mode When auto active test mode is actuated, the following operation sequence is repeated 3 times. Operation sequence Inspection Location Operation 1 Front wiper LO for 3 seconds HI for 3 seconds 2 Front fog lamps Parking lamps Side marker lamps Tail lamps License plate lamps 10 seconds 3 Daytime running lamps 10 seconds 4 Headlamps LO HI 5 times 5 A/C compressor ON OFF 5 times 6 * Cooling fans LO for 5 seconds HI for 5 seconds *: Outputs duty ratio of 50% for 5 seconds duty ratio of 100% for 5 seconds on the cooling fan control module. WW-18

19 < SYSTEM DESCRIPTION > Concept of auto active test DIAGNOSIS SYSTEM (IPDM E/R) A B C D E IPDM E/R starts the auto active test with the door switch signals transmitted by BCM via CAN communication. Therefore, the CAN communication line between IPDM E/R and BCM is considered normal if the auto active test starts successfully. The auto active test facilitates troubleshooting if any systems controlled by IPDM E/R cannot be operated. Diagnosis chart in auto active test mode AWMIA1727GB F G H Symptom Inspection contents Possible cause Any of the following components do not operate: Front fog lamps Parking lamps Side marker lamps License plate lamps Tail lamps Daytime running lamps Headlamp (HI, LO) Front wiper Perform auto active test. Does the applicable system operate? YES NO BCM signal input circuit Lamp or motor Lamp or motor ground circuit Harness or connector between IPDM E/R and applicable system IPDM E/R I J K A/C compressor does not operate. Perform auto active test. Does the magnet clutch operate? YES NO Combination meter signal input circuit CAN communication signal between combination meter and ECM CAN communication signal between ECM and IPDM E/R Magnet clutch Harness or connectors between IPDM E/R and magnet clutch IPDM E/R WW M N O P WW-19

20 < SYSTEM DESCRIPTION > DIAGNOSIS SYSTEM (IPDM E/R) Cooling fans do not operate. CONSULT Function (IPDM E/R) APPLICATION ITEM CONSULT performs the following functions via CAN communication with IPDM E/R. Direct Diagnostic Mode ECU Identification Self Diagnostic Result Data Monitor Active Test CAN Diag Support Mntr ECU IDENTIFICATION The IPDM E/R part number is displayed. SELF DIAGNOSTIC RESULT Refer to PCS-21, "DTC Index". DATA MONITOR Monitor Item [Unit] Symptom Inspection contents Possible cause Perform auto active test. Do the cooling fans operate? The IPDM E/R part number is displayed. Description The IPDM E/R self diagnostic results are displayed. YES NO The IPDM E/R input/output data is displayed in real time. The IPDM E/R activates outputs to test components. ECM signal input circuit CAN communication signal between ECM and IPDM E/R Cooling fans Harness or connectors between cooling fans and cooling fan control module Cooling fan control module Harness or connectors between cooling fan relay and cooling fan control module Cooling fan relay Harness or connectors between IPDM E/R and cooling fan relay IPDM E/R The result of transmit/receive diagnosis of CAN communication is displayed. Main Signals MOTOR FAN REQ [1/2/3/4] AC COMP REQ [On/Off] TAIL&CLR REQ [On/Off] HL LO REQ [On/Off] HL HI REQ [On/Off] FR FOG REQ [On/Off] FR WIP REQ [Stop/1LOW/Low/Hi] Description INFOID: Indicates cooling fan speed signal received from ECM on CAN communication line Indicates A/C compressor request signal received from ECM on CAN communication line Indicates position light request signal received from BCM on CAN communication line Indicates low beam request signal received from BCM on CAN communication line Indicates high beam request signal received from BCM on CAN communication line Indicates front fog light request signal received from BCM on CAN communication line Indicates front wiper request signal received from BCM on CAN communication line WIP AUTO STOP [STOP P/ACT P] Indicates condition of front wiper auto stop signal WIP PROT [Off/BLOCK] Indicates condition of front wiper fail-safe operation WW-20

21 < SYSTEM DESCRIPTION > DIAGNOSIS SYSTEM (IPDM E/R) IGN RLY1 -REQ [On/Off] IGN RLY [On/Off] Indicates condition of ignition relay-1 PUSH SW [On/Off] INTER/NP SW [On/Off] ST RLY CONT [On/Off] IHBT RLY -REQ [On/Off] ST/INHI RLY [Off/ ST /INHI] DETENT SW [On/Off] DTRL REQ [Off] HOOD SWITCH THFT HRN REQ [On/Off] HORN CHIRP [On/Off] ACTIVE TEST CAN DIAG SUPPORT MNTR Refer to LAN-14, "CAN Diagnostic Support Monitor". Indicates ignition switch ON signal received from BCM on CAN communication line Indicates condition of push-button ignition switch Indicates condition of CVT shift position Indicates starter relay status signal received from BCM on CAN communication line Indicates starter control relay signal received from BCM on CAN communication line Indicates condition of starter relay and starter control relay Indicates condition of CVT shift selector (park position switch) Indicates daytime running light request signal received from BCM on CAN communication line Indicates condition of hood switch HOOD SWITCH 2 Indicates condition of hood switch 2 HORN FRONT WIPER Monitor Item [Unit] Test item Main Signals Indicates theft warning horn request signal received from BCM on CAN communication line Indicates horn reminder signal received from BCM on CAN communication line This test is able to check horn operation [On]. Description Description This test is able to check wiper motor operation [Hi/Lo/Off]. MOTOR FAN This test is able to check cooling fan operation [4/3/2/1]. EXTERNAL LAMPS This test is able to check external lamp operation [Fog/Hi/Lo/Tail/Off]. A B C D E F G H I J K WW M N O P WW-21

22 < ECU DIAGNOSIS INFORMATION > BCM, IPDM E/R ECU DIAGNOSIS INFORMATION BCM, IPDM E/R List of ECU Reference INFOID: ECU BCM IPDM E/R Reference BCS-31, "Reference Value" BCS-51, "Fail Safe" BCS-52, "DTC Inspection Priority Chart" BCS-53, "DTC Index" PCS-13, "Reference Value" PCS-20, "Fail Safe" PCS-21, "DTC Index" WW-22

23 < WIRING DIAGRAM > WIRING DIAGRAM WIPER AND WASHER SYSTEM Wiring Diagram WIPER AND WASHER SYSTEM INFOID: A B C D E F G H I J K WW M N O P AALWA1340GB WW-23

24 < WIRING DIAGRAM > WIPER AND WASHER SYSTEM AALIA3999GB WW-24

25 < WIRING DIAGRAM > WIPER AND WASHER SYSTEM A B C D E F G H I J K WW M N O AALIA4000GB P WW-25

26 < WIRING DIAGRAM > WIPER AND WASHER SYSTEM AALIA4001GB WW-26

27 < BASIC INSPECTION > DIAGNOSIS AND REPAIR WORK FLOW BASIC INSPECTION DIAGNOSIS AND REPAIR WORK FLOW Work Flow OVERALL SEQUENCE INFOID: A B C D E F G H I J K WW M N O DETAILED FLOW 1. INTERVIEW CUSTOMER ALKIA1982GB Interview the customer to obtain as much information as possible about the conditions and environment under which the malfunction occurred. P WW-27

28 < BASIC INSPECTION > DIAGNOSIS AND REPAIR WORK FLOW >> GO TO REPRODUCE THE MALFUNCTION Reproduce the malfunction on the vehicle that the customer describes. Inspect the relation of the symptoms and the condition when the symptoms occur. >> GO TO SYMPTOM DIAGNOSIS Use Symptom diagnosis from the symptom inspection result in step 2 and then identify where to start performing the diagnosis based on possible causes and symptoms. >> GO TO COMPONENT DIAGNOSIS Perform the diagnosis with Component diagnosis of the applicable system. >> GO TO REPAIR OR REPLACE THE MALFUNCTIONING PART Repair or replace the specified malfunctioning parts. >> GO TO PERFORM FINAL OPERATIONAL CHECK Check that malfunctions are not reproduced when obtaining the malfunction information from the customer, referring to the symptom inspection result in step 2. Are the malfunctions corrected? YES >> Inspection End. NO >> GO TO 3. WW-28

29 < DTC/CIRCUIT DIAGNOSIS > DTC/CIRCUIT DIAGNOSIS WIPER AND WASHER FUSE Diagnosis Procedure 1. CHECK FUSES Check that the following fuses are not blown: WIPER AND WASHER FUSE INFOID: A B C Component Capacity Fuse No. Location Front wiper motor 30A 48 Front washer motor 10A 47 IPDM E/R Is the fuse blown? YES >> Replace the blown fuse after repairing the affected circuit. NO >> Inspection End. D E F G H I J K WW M N O P WW-29

30 FRONT WIPER MOTOR LO CIRCUIT < DTC/CIRCUIT DIAGNOSIS > FRONT WIPER MOTOR LO CIRCUIT Component Function Check INFOID: CHECK FRONT WIPER LO OPERATION CONSULT 1. Select FRONT WIPER in Active Test mode of IPDM E/R. 2. While operating the test item, check front wiper operation. Lo : Front wiper (LO) operation Off : Stop the front wiper. Is front wiper (LO) operation normal? YES >> Front wiper motor LO circuit is normal. NO >> Refer to WW-30, "Diagnosis Procedure". Diagnosis Procedure INFOID: Regarding Wiring Diagram information, refer to WW-23, "Wiring Diagram". 1.CHECK FRONT WIPER MOTOR (LO) OUTPUT VOLTAGE CONSULT 1. Turn ignition switch OFF. 2. Disconnect front wiper motor connector. 3. Turn ignition switch ON. 4. Select FRONT WIPER in Active Test mode of IPDM E/R. 5. While operating the test item, check voltage between front wiper motor harness connector and ground. Connector (+) Front wiper motor Terminal Lo E25 3 Ground FRONT WIPER Off Is the inspection result normal? YES >> Replace front wiper motor. Refer to WW-52, "Removal and Installation". NO >> GO TO 2. 2.CHECK FRONT WIPER MOTOR (LO) CIRCUIT ( ) Condition 1. Turn ignition switch OFF. 2. Disconnect IPDM E/R connector. 3. Check continuity between IPDM E/R harness connector and front wiper motor harness connector. IPDM E/R Front wiper motor Connector Terminal Connector Terminal E18 11 E25 3 Yes 4. Check continuity between IPDM E/R harness connector and ground. Connector IPDM E/R Terminal E18 11 Ground No Is the inspection result normal? YES >> Replace IPDM E/R. Refer to PCS-36, "Removal and Installation". Voltage (Approx.) Battery voltage 0 V Continuity Continuity WW-30

31 < DTC/CIRCUIT DIAGNOSIS > NO >> Repair or replace harness. FRONT WIPER MOTOR LO CIRCUIT A B C D E F G H I J K WW M N O P WW-31

32 FRONT WIPER MOTOR HI CIRCUIT < DTC/CIRCUIT DIAGNOSIS > FRONT WIPER MOTOR HI CIRCUIT Component Function Check INFOID: CHECK FRONT WIPER HI OPERATION CONSULT 1. Select FRONT WIPER in Active Test mode of IPDM E/R. 2. While operating the test item, check front wiper operation. Hi : Front wiper (HI) operation Off : Stop the front wiper. Is front wiper (HI) operation normal? YES >> Front wiper motor HI circuit is normal. NO >> Refer to WW-32, "Diagnosis Procedure". Diagnosis Procedure INFOID: Regarding Wiring Diagram information, refer to WW-23, "Wiring Diagram". 1.CHECK FRONT WIPER MOTOR (HI) OUTPUT VOLTAGE CONSULT 1. Turn ignition switch OFF. 2. Disconnect front wiper motor connector. 3. Turn ignition switch ON. 4. Select FRONT WIPER in Active Test mode of IPDM E/R. 5. While operating the test item, check voltage between front wiper motor harness connector and ground. Connector (+) Front wiper motor Terminal E25 5 Ground FRONT WIPER Is the inspection result normal? YES >> Replace front wiper motor. NO >> GO TO 2. 2.CHECK FRONT WIPER MOTOR (HI) CIRCUIT ( ) Condition 1. Turn ignition switch OFF. 2. Disconnect IPDM E/R connector. 3. Check continuity between IPDM E/R harness connector and front wiper motor harness connector. IPDM E/R Front wiper motor Connector Terminal Connector Terminal E18 18 E25 5 Yes 4. Check continuity between IPDM E/R harness connector and ground. Connector IPDM E/R Terminal E18 18 Ground No Is the inspection result normal? YES >> Replace IPDM E/R. Refer to PCS-36, "Removal and Installation". Hi Off Voltage (Approx.) Battery voltage 0 V Continuity Continuity WW-32

33 < DTC/CIRCUIT DIAGNOSIS > NO >> Repair or replace harness. FRONT WIPER MOTOR HI CIRCUIT A B C D E F G H I J K WW M N O P WW-33

34 FRONT WIPER STOP POSITION SIGNAL CIRCUIT < DTC/CIRCUIT DIAGNOSIS > FRONT WIPER STOP POSITION SIGNAL CIRCUIT Component Function Check INFOID: CHECK FRONT WIPER STOP POSITION SIGNAL CONSULT 1. Select WIP AUTO STOP in Data Monitor mode of IPDM E/R. 2. Operate the front wiper. 3. Check that the function operates normally according to the following conditions: Monitor item Condition Monitor status Stop position WIP AUTO STOP Front wiper motor Except stop position Is the status of item normal? YES >> Front wiper stop position signal circuit is normal. NO >> Refer to WW-34, "Diagnosis Procedure". Diagnosis Procedure STOP P ACT P INFOID: Regarding Wiring Diagram information, refer to WW-23, "Wiring Diagram". 1.CHECK IPDM E/R OUTPUT VOLTAGE 1. Turn ignition switch OFF. 2. Disconnect front wiper motor connector. 3. Turn ignition switch ON. 4. Check voltage between front wiper motor harness connector and ground. Connector Is the inspection result normal? YES >> Replace front wiper motor. NO >> GO TO 2. 2.CHECK FRONT WIPER MOTOR CIRCUIT (+) Front wiper motor Terminal 1. Turn ignition switch OFF. 2. Disconnect IPDM E/R connector. 3. Check continuity between IPDM E/R harness connector and front wiper motor harness connector. E19 34 E25 4 Yes 4. Check continuity between IPDM E/R harness connector and ground. E19 34 Ground No Is the inspection result normal? YES >> Replace IPDM E/R. Refer to PCS-36, "Removal and Installation". NO >> Repair or replace harness. ( ) Voltage (Approx.) E25 4 Ground Battery voltage IPDM E/R Front wiper motor Connector Terminal Connector Terminal Connector IPDM E/R Terminal Continuity Continuity WW-34

35 < DTC/CIRCUIT DIAGNOSIS > FRONT WIPER MOTOR GROUND CIRCUIT FRONT WIPER MOTOR GROUND CIRCUIT Diagnosis Procedure Regarding Wiring Diagram information, refer to WW-23, "Wiring Diagram". 1.CHECK FRONT WIPER MOTOR GROUND CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect front wiper motor connector. 3. Check continuity between front wiper motor harness connector and ground. INFOID: A B C D Front wiper motor Connector Terminal Continuity E25 2 Ground Yes Is the inspection result normal? YES >> Inspection End. NO >> Repair or replace harness. E F G H I J K WW M N O P WW-35

36 < DTC/CIRCUIT DIAGNOSIS > WASHER MOTOR CIRCUIT Diagnosis Procedure WASHER MOTOR CIRCUIT INFOID: Regarding Wiring Diagram information, refer to WW-23, "Wiring Diagram" 1. CHECK FRONT WASHER MOTOR FUSE 1. Turn ignition switch OFF. 2. Check that the following fuse is not blown: Component Capacity Fuse No. Location Front washer motor 10A 47 IPDM E/R Is the fuse blown? YES >> Replace the blown fuse after repairing the affected circuit. NO >> GO TO CHECK FRONT WASHER MOTOR POWER SUPPLY 1. Disconnect the front washer motor. 2. Turn ignition switch ON. 3. Check voltage between front washer motor harness connector and ground. Connector (+) (-) Front washer motor Terminal E226 1 Ground Is the inspection result normal? YES >> Inspection End. NO >> GO TO CHECK WASHER SWITCH Check washer switch. Refer to WW-59, "Exploded View". Is the inspection result normal? YES >> Repair harness between fuse and the front washer motor. NO >> Replace washer switch. Refer to WW-59, "Exploded View". Washer switch ON OFF Voltage (Approx.) Battery voltage 0 V WW-36

37 < DTC/CIRCUIT DIAGNOSIS > RAIN SENSOR Component Function Check RAIN SENSOR INFOID: A 1.CHECK FRONT WIPER AUTO OPERATION 1. Clean rain sensor detection area of windshield fully. 2. When the front wiper switch is turned to AUTO position, front wiper operates once regardless of a rainy condition. Is the inspection result normal? YES >> Rain sensor circuit is normal. NO >> Refer to WW-37, "Diagnosis Procedure". Diagnosis Procedure Regarding Wiring Diagram information, refer to WW-23, "Wiring Diagram". 1.CHECK RAIN SENSOR FUSE 1. Turn ignition switch OFF. 2. Check that the following fuse is not blown: Component Location Fuse No. Capacity Rain sensor Fuse block (J/B) 14 5A Is the inspection result normal? YES >> GO TO 2. NO >> Replace the blown fuse after repairing the applicable circuit. 2.CHECK RAIN SENSOR POWER SUPPLY 1. Disconnect rain sensor connector. 2. Check voltage between rain sensor harness connector and ground. Connector (+) Rain sensor Terminal Is the inspection result normal? YES >> GO TO 3. NO >> Repair or replace the harness or connectors. 3.CHECK RAIN SENSOR GROUND CIRCUIT Check continuity between rain sensor harness connector and ground. R15 3 Ground Yes Is the inspection result normal? YES >> GO TO 4. NO >> Repair or replace the harness or connectors. 4.CHECK RAIN SENSOR SIGNAL 1. Connect rain sensor connector. 2. Turn ignition switch ON. 3. Check signal between BCM harness connector and ground with oscilloscope. ( ) Voltage (Approx.) R15 1 Ground Battery voltage Connector Rain sensor Terminal Continuity INFOID: B C D E F G H I J K WW M N O P WW-37

38 < DTC/CIRCUIT DIAGNOSIS > RAIN SENSOR Connector (+) BCM Terminal ( ) Condition Signal (Reference value) M20 55 Ground Ignition switch ON Is the inspection result normal? YES >> Replace rain sensor. Refer to WW-57, "Removal and Installation". NO >> GO TO 5. 5.CHECK RAIN SENSOR SIGNAL CIRCUIT FOR OPEN 1. Turn ignition switch OFF. 2. Disconnect BCM connector and rain sensor connector. 3. Check continuity between BCM harness connector and rain sensor harness connector. BCM Is the inspection result normal? YES >> GO TO 6. NO >> Repair or replace the harness or connectors. 6.CHECK RAIN SENSOR SIGNAL CIRCUIT FOR SHORT Check continuity between BCM harness connector and ground. Rain sensor Connector Terminal Connector Terminal Is the inspection result normal? YES >> Replace BCM. Refer to BCS-82, "Removal and Installation". NO >> Repair or replace the harness connectors. JPMIA0156GB Approx. 8.7V Continuity M20 55 R15 2 Yes Connector BCM Terminal Continuity M20 55 Ground No WW-38

39 < DTC/CIRCUIT DIAGNOSIS > WASHER SWITCH Component Inspection WASHER SWITCH INFOID: A 1.CHECK WASHER SWITCH (WIPER AND WASHER SWITCH) 1. Turn ignition switch OFF. 2. Disconnect combination switch (wiper and washer switch) connector. 3. Check continuity between the combination switch (wiper and washer switch) terminals. B C Combination switch (wiper and washer switch) Terminals Condition Continuity 1 6 Washer switch ON Yes Is the inspection result normal? YES >> Inspection End. NO >> Replace combination switch (wiper and washer switch). Refer to WW-59, "Exploded View". D E F G H I J K WW M N O P WW-39

40 WIPER AND WASHER SYSTEM SYMPTOMS < SYMPTOM DIAGNOSIS > SYMPTOM DIAGNOSIS WIPER AND WASHER SYSTEM SYMPTOMS Symptom Table INFOID: NOTE: Perform the Self Diagnostic Result with CONSULT before the symptom diagnosis. Perform the trouble diagnosis if any DTC is detected. Front wiper does not operate Symptom Probable malfunction location Inspection item HI only LO and INT LO only INT only HI, LO and INT Combination switch (wiper and washer switch) Harness between combination switch (wiper and washer switch) and BCM BCM IPDM E/R Harness between IPDM E/R and front wiper motor Front wiper motor Front wiper request signal BCM IPDM E/R IPDM E/R Harness between IPDM E/R and front wiper motor Front wiper motor Combination switch (wiper and washer switch) Harness between combination switch and BCM BCM Front wiper request signal BCM IPDM E/R Combination switch (wiper and washer switch) Harness between combination switch (wiper and washer switch) and BCM BCM Front wiper request signal BCM IPDM E/R SYMPTOM DIAGNOSIS Refer to WW-30, "Diagnosis Procedure". Combination switch (wiper and washer switch) Refer to BCS-80, "Symptom Table". Front wiper motor (HI) circuit Refer to WW-32, "Component Function Check". IPDM E/R Data Monitor FR WIP REQ Front wiper motor (LO) circuit Refer to WW-30, "Component Function Check". Combination switch (wiper and washer switch) Refer to BCS-80, "Symptom Table". IPDM E/R Data Monitor FR WIP REQ Combination switch (wiper and washer switch) Refer to BCS-80, "Symptom Table". IPDM E/R Data Monitor FR WIP REQ WW-40

41 < SYMPTOM DIAGNOSIS > WIPER AND WASHER SYSTEM SYMPTOMS Front wiper does not stop Front wiper does not operate normally Symptom Probable malfunction location Inspection item HI only LO only INT only Intermittent adjustment cannot be performed Intermittent control linked with vehicle speed cannot be performed Wiper is not linked to the washer operation Does not return to stop position [Repeatedly operates for 10 seconds and then stops for 20 seconds. (Fail-safe)] Combination switch (wiper and washer switch) BCM Front wiper request signal BCM IPDM E/R Combination switch (wiper and washer switch) Refer to BCS-80, "Symptom Table". IPDM E/R Data Monitor FR WIP REQ IPDM E/R Combination switch (wiper and washer switch) BCM Front wiper request signal BCM IPDM E/R Combination switch (wiper and washer switch) Refer to BCS-80, "Symptom Table". IPDM E/R Data Monitor FR WIP REQ IPDM E/R Combination switch (wiper and washer switch) BCM Front wiper request signal BCM IPDM E/R Combination switch (wiper and washer switch) Harness between combination switch and BCM BCM Combination switch (wiper and washer switch) Refer to BCS-80, "Symptom Table". IPDM E/R Data Monitor FR WIP REQ Combination switch (wiper and washer switch) Refer to BCS-80, "Symptom Table". BCM Check the wiper setting is linked with vehicle speed. Refer to BCS-21, "WIPER : CONSULT Function (BCM - WIPER)". Combination switch (wiper and washer switch) Harness between combination switch and BCM BCM Combination switch (wiper and washer switch) Refer to BCS-80, "Symptom Table". BCM IPDM E/R Harness between IPDM E/R and front wiper motor Front wiper motor Front wiper stop position signal circuit Refer to WW-34, "Component Function Check". A B C D E F G H I J K WW M N O P WW-41

42 < SYMPTOM DIAGNOSIS > NORMAL OPERATING CONDITION Description NORMAL OPERATING CONDITION INFOID: FRONT WIPER MOTOR PROTECTION FUNCTION IPDM E/R may stop the front wiper to protect the front wiper motor if any obstruction (operation resistance) such as a large amount of snow is detected during the front wiper operation. At that time, turn OFF the front wiper and remove the foreign object. Then wait for approximately 20 seconds or more and reactivate the front wiper. The wiper will operate normally. WW-42

43 < SYMPTOM DIAGNOSIS > FRONT WIPER DOES NOT OPERATE FRONT WIPER DOES NOT OPERATE Description The front wiper does not operate under any operation conditions. Diagnosis Procedure Regarding Wiring Diagram information, refer to WW-23, "Wiring Diagram". 1.CHECK WIPER RELAY OPERATION CONSULT 1. Select FRONT WIPER in Active Test mode of IPDM E/R. 2. While operating the test item, check front wiper operation. INFOID: INFOID: A B C D E LO HI Off : Front wiper LO operation : Front wiper HI operation : Stop the front wiper. Is front wiper operation normally? YES >> GO TO 4. NO >> GO TO 2. 2.CHECK FRONT WIPER MOTOR FUSE Check that the following IPDM E/R fuse is not blown: Component Location Fuse No. Capacity Front wiper motor IPDM E/R 48 30A Is the fuse blown? YES >> GO TO 3. NO >> Replace the blown fuse after repairing the affected circuit. 3.CHECK FRONT WIPER MOTOR GROUND CIRCUIT Check front wiper motor ground circuit. Refer to WW-35, "Diagnosis Procedure". Is the inspection result normal? YES >> GO TO 4. NO >> Repair or replace harness. 4.CHECK FRONT WIPER REQUEST SIGNAL INPUT CONSULT 1. Select FR WIP REQ in Data Monitor mode of IPDM E/R. 2. Switch the front wiper switch to HI and LO. 3. While operating the front wiper switch, check the status of FR WIP REQ. Monitor item Condition Monitor status FR WIP REQ Front wiper switch OFF Is the inspection result normal? YES >> Replace IPDM E/R. Refer to PCS-36, "Removal and Installation". NO >> GO TO 5. 5.CHECK COMBINATION SWITCH (WIPER AND WASHER SWITCH) HI LO INT Hi Low 1Low Stop F G H I J K WW M N O P WW-43

44 FRONT WIPER DOES NOT OPERATE < SYMPTOM DIAGNOSIS > Perform the inspection of the combination switch (wiper and washer switch). Refer to BCS-80, "Symptom Table". Is combination switch normal? YES >> Replace BCM. Refer to BCS-82, "Removal and Installation". NO >> Repair or replace the applicable parts. WW-44

45 < REMOVAL AND INSTALLATION > FRONT WIPER REMOVAL AND INSTALLATION FRONT WIPER Exploded View INFOID: A B C D E F G H I J AWKIA3635ZZ K 1. Wiper blade (LH) 2. Wiper blade (RH) 3. Wiper arm (LH) 4. Wiper arm cover 5. Wiper arm (RH) 6. Wiper drive assembly A. Refer to INSTALLATION Pawl WW WIPER ARM WIPER ARM : Removal and Installation REMOVAL 1. Operate front wiper arms into the auto stop position. 2. Remove front wiper arm cover. 3. Remove front wiper arm nut. 4. Raise front wiper arm, then remove the front wiper arm. INSTALLATION INFOID: M N O P WW-45