Pinpoint tests of windscreen wipers (cars after 08.2001)

K1: CHECK FUSE F56 (CJB)

1Enter the OFF position.

2CHECK Fuse F56 (CJB).

3CHECK FUSE F56 (20A)

• Is the fuse good?

→ Yes

Go to K2

→ No

INSTALL a new fuse F56 (20A) and CHECK the system operation. If the fuse blows again, LOCATE and REPAIR the short circuit using the wiring diagrams. CHECK the system operation correctly.

K2: CHECK VOLTAGE AT FUSE F56 (CJB)

1Enter the OFF position.

2Connect Fuse F56 (CJB).

3Enter the ON position.

4Measure the voltage between fuse F56 and ground.

• Is battery voltage registered?

→ Yes

Rear Window Wiper Not Working: Go to K3

The windshield wiper function with rear window wiper mode and the normal windshield wiper function do not work: Go to K5

→ No

CHECK CJB; if necessary, INSTALL a new CJB. CHECK the system is operating correctly.

K3: CHECK FUSE F43 (CJB)

1Enter the OFF position.

2CHECK Fuse F43 (CJB).

3CHECK FUSE F43 (15A)

• Is the fuse good?

→ Yes

Go to K4

→ No

INSTALL a new fuse F43 (15A) and CHECK the system operation. If the fuse blows again, LOCATE and REPAIR the short circuit using the wiring diagrams. CHECK the system operation correctly.

K4: CHECK VOLTAGE AT FUSE F43 (CJB)

1Enter the OFF position.

2Connect Fuse F43 (CJB).

3Enter the ON position.

4Measure the voltage between fuse F43 and ground.

• Is battery voltage registered?

→ Yes

Go to K5

→ No

CHECK CJB; if necessary, INSTALL a new CJB. CHECK the system is operating correctly.

K5: CHECK THE SYSTEM USING WDS

1Connect the diagnostic tool.

2Check the system using WDS

• Are any diagnostic trouble codes (DTCs) recorded?

→ Yes

TREAT the DTCs according to the WDS instructions, CLEAR the memory where the fault data is stored, and CHECK the system for proper operation.

→ No

Go to K6

K6: CHECK VOLTAGE AT WIPER/WASHER SWITCH

1Enter the OFF position.

2Disconnect Windscreen Wiper/Washer Switch - C441.

3Enter the ON position.

4Measure the voltage between wiper/washer switch C441 pin 6, circuit 15-KA19(A) (GN/OG), harness side and ground.

• Is battery voltage registered?

→ Yes

Go to K7

→ No

LOCATE and REPAIR the open circuit between fuse F56 and the wiper/washer switch using the electrical circuit diagrams. If necessary, INSTALL a new CJB. CHECK the system operates correctly.

K7: CHECK WIPER/WASHER SWITCH

1Enter the OFF position.

2Check the wiper/washer switch according to the component testing instructions included with the electrical diagrams.

• Is the wiper/washer switch working properly?

→ Yes

Windshield wipers not working: Go to K14

Rear Window Wiper Not Working: Go to K8

→ No

INSTALL a new wiper/washer switch. CHECK the system for proper operation.

K8: CHECK VOLTAGE AT REAR WIPER RELAY (PIN 1)

1Enter the OFF position.

2Disconnect Rear Window Wiper Relay - C1018.

3Enter the ON position.

4Measure the voltage between pin 1 of the rear window wiper relay C1018, CJB side, and ground.

• Is battery voltage registered?

→ Yes

Go to K9

→ No

CHECK CJB; if necessary, INSTALL a new CJB. CHECK the system is operating correctly.

K9: CHECK VOLTAGE AT REAR WIPER RELAY (PIN 5)

1Measure the voltage between pin 5 C101 of the rear window wiper relay, CJB side, and ground.

• Is battery voltage registered?

→ Yes

Go to K10

→ No

CHECK CJB; if necessary, INSTALL a new CJB. CHECK the system is operating correctly.

K10: CHECK REAR WIPER RELAY POWER SUPPLY CIRCUIT

1Enter the OFF position.

2Disconnect the Rear Window Wiper Motor - C971.

3Connect a fused jumper wire (15A) to the rear window wiper relay connector C1018, between pin 3 and pin 5, at the CJB side.

4Enter the ON position.

5Measure the voltage between rear window wiper motor pin 2 C971, circuit 32-KA28 (WH/RD), harness side and ground.

• Is battery voltage registered?

→ Yes

Go to K11

→ No

LOCATE and REPAIR the open in the circuit between the rear wiper relay and the rear wiper motor using the electrical circuit diagrams. If necessary, INSTALL a new CJB. CHECK the system operates correctly.

K11: CHECK REAR WIPER RELAY CONTROL CIRCUIT

1Enter the OFF position.

2Connect Rear Window Wiper Relay - C1018.

3Enter the ON position.

4Turn on the REAR WIPER.

5Measure the voltage between rear window wiper motor pin 2 C971, circuit 32-KA28 (WH/RD), harness side and ground.

• Is battery voltage registered?

→ Yes

Go to K13

→ No

CHECK the rear window wiper relay according to the component testing instructions supplied with the electrical diagrams; if necessary, INSTALL a new element. If the relay is OK, Go to K12

K12: CHECK VOLTAGE AT REAR WIPER MOTOR

1Measure the voltage between rear window wiper motor pin 1 C971, circuit 15-KA28 (GN/BR), harness side and ground.

• Is battery voltage registered?

→ Yes

CHECK the wiper motor; if necessary, INSTALL a new element. CHECK that the system is working properly.

→ No

LOCATE and REPAIR the open in the circuit between fuse F43 (CJB) and the rear window wiper motor using the electrical circuit diagrams. If necessary, INSTALL a new CJB. CHECK the system operates correctly.

K13: CHECK REAR WIPER RELAY CONTROL CIRCUIT

1Enter the OFF position.

2Disconnect the General Electronic Module (GEM) - C105.

3Enter the ON position.

4Measure the resistance between rear window wiper relay C1018 pin 2, CJB side and generic electronic module (GEM) C105 pin 17, circuit 91S-KA29 (BK/YE), wiring harness side.

• Is the resistance less than 2 ohms?

→ Yes

INSTALL a new Generic Electronic Module (GEM). CHECK the system for proper operation.

→ No

LOCATE and REPAIR the open in the circuit between the rear wiper relay and the Generic Electronic Module (GEM) using the wiring diagrams. If necessary, INSTALL a new CJB. CHECK the system operates correctly.

K14: CHECK VOLTAGE AT WINDSHIELD WIPER MOTOR

1Connect Windscreen Wiper/Washer Switch - C441.

2Disconnect Windshield Wiper Motor - C848.

3Enter the ON position.

4Turn on the LOW SPEED WIPER MODE.

5Measure the voltage between windshield wiper motor pin 5 C848, circuit 32-KA10 (WH/GN), harness side and ground.

• Is battery voltage registered?

→ Yes

Go to K15

→ No

LOCATE and REPAIR the open in circuit 32-KA10 (WH/GN) between wiper/washer switch and wiper motor using the electrical circuit diagrams. CHECK for proper system operation.

K15: CHECK WINDSHIELD WIPER MOTOR GROUND CONNECTION

1Enter the OFF position.

2Measure the resistance between pin 1 C848 of the windshield wiper motor, circuit 31-KA9 (Black), harness side and ground.

• Is the resistance less than 2 ohms?

→ Yes

CHECK the windshield wiper motor according to the component inspection instructions included with this section; if necessary, INSTALL a new element. CHECK that the system is working properly.

→ No

LOCATE and REPAIR the open in circuit 31-KA9 (Black) between wiper motor and S121 (Ground G37) using the wiring diagrams. CHECK for proper system operation.

L1: CHECK THE SYSTEM USING WDS

1Connect the diagnostic tool.

2Check the system using WDS.

• Are any diagnostic trouble codes (DTCs) recorded?

→ Yes

TREAT the DTCs according to the WDS instructions, CLEAR the memory where the fault data is stored, and CHECK the system for proper operation.

→ No

Windshield wipers on continuously: Go to L2

Rear window wiper on continuously: Go to L12

L2: DETERMINE THE STATE IN WHICH THE MALFUNCTION OCCURS.

1Determine the condition in which the fault occurs.

• Are the purifiers running continuously in low speed cleaning mode?

→ Yes

Go to L3

→ No

To Intermittent Cleaning Mode: Go to L8

In high speed cleaning mode: Go to L10

L3: IDENTIFY THE STATE IN WHICH THE MALFUNCTION OCCURS

NOTE:Turn off the windshield wipers

1Enter the OFF position.

2Disconnect Windshield Wiper Motor - C848.

3Enter the ON position.

4Measure the voltage between windshield wiper motor pin 5 C848, circuit 32-KA10 (WH/GN), harness side and ground.

• Is battery voltage registered?

→ Yes

Go to L4

→ No

CHECK the windshield wiper motor according to the component inspection instructions included with this section; if necessary, INSTALL a new element. CHECK that the system is working properly.

L4: CHECK ELECTRICAL CIRCUIT 32-KA10 (WHITE/GREEN) AT WINDSHIELD WIPER MOTOR SECTION FOR SHORT TO POWER SUPPLY

1Enter the OFF position.

2Disconnect Windscreen Wiper/Washer Switch - C441.

3Enter the ON position.

4Measure the voltage between windshield wiper motor pin 5 C848, circuit 32-KA10 (WH/GN), harness side and ground.

• Is battery voltage registered?

→ Yes

LOCATE and REPAIR the short to power in circuit 32-KA10 (WH/GN) between the wiper/washer switch and the wiper motor using the electrical circuit diagrams. CHECK for proper system operation.

→ No

Go to L5

L5: CHECK VOLTAGE AT WIPER/WASHER SWITCH

1Measure the voltage between wiper/washer switch pin 7 C441, circuit 32-KA19(A) (WH/BK), harness side and ground.

• Is battery voltage registered?

→ Yes

Go to L6

→ No

INSTALL a new wiper/washer switch. CHECK the system for proper operation.

L6: CHECK WINDSHIELD WIPER RELAY

1Enter the OFF position.

2Disconnect Windshield Wiper Relay - C1019.

3CHECK the windshield wiper relay according to the component testing instructions included with the electrical diagrams.

• Is the relay working properly?

→ Yes

Go to L7

→ No

INSTALL a new wiper relay. CHECK the system for proper operation.

L7: CHECK WINDSHIELD WIPER RELAY CONTROL CIRCUIT FOR SHORT TO GROUND"

1Enter the OFF position.

2Disconnect the General Electronic Module (GEM) - C105.

3Enter the ON position.

4Measure the resistance between pin 2 of the windscreen wiper relay C1019, CJB side, and ground.

• Does the resistance exceed 10 kOhm?

→ Yes

INSTALL a new Generic Electronic Module (GEM). CHECK the system for proper operation.

→ No

LOCATE and REPAIR the short to ground in the circuit between the windshield wiper relay and the generic electronic module (GEM) using the wiring diagrams. INSTALL a new CJB if necessary. CHECK the system operates correctly.

L8: CHECK THE ELECTRICAL CIRCUIT 8-KA19(A) (WHITE/BLACK) ON THE WIPER SWITCH SECTION/WINDSCREEN WASHERS FOR SHORT CIRCUIT TO THE POWER SUPPLY

1Enter the OFF position.

2Disconnect Windscreen Wiper/Washer Switch - C441.

3Enter the ON position.

4Measure the voltage between wiper/washer switch pin 10 C441, circuit 8-KA19 (WH/BK), harness side and ground.

• Is battery voltage registered?

→ Yes

LOCATE and CORRECT a short circuit to the power supply in the electrical circuit 8-KA19(A) (white/black), between the wiper/washer switch and the common electronic module (GEM), using electrical diagrams. CHECK that the system is working correctly.

→ No

Go to L9

L9: CHECK WIPER/WASHER SWITCH

1CHECK the wiper/washer switch according to the component testing instructions provided with the electrical diagrams.

• Is the switch working properly?

→ Yes

INSTALL a new Generic Electronic Module (GEM). CHECK the system for proper operation.

→ No

INSTALL a new wiper/washer switch. CHECK the system for proper operation.

L10: IDENTIFY THE STATE IN WHICH THE MALFUNCTION OCCURS

1Enter the OFF position.

2Disconnect Windshield Wiper Motor - C848.

3Enter the ON position.

4Measure the voltage between windshield wiper motor pin 4 C848, circuit 32-KA11 (WH/BLK), harness side and ground.

• Is battery voltage registered?

→ Yes

Go to L11

→ No

INSTALL a new wiper motor. CHECK the system for proper operation.

L11: CHECK WIPER/WASHER SWITCH

1Enter the OFF position.

2Disconnect Windscreen Wiper/Washer Switch - C441.

3CHECK the wiper/washer switch according to the component testing instructions provided with the electrical diagrams.

• Is the switch working properly?

→ Yes

LOCATE and REPAIR the short to power in the circuits connected to wiper/washer switch pin 8 C441 using the wiring diagrams. If necessary, INSTALL a new CJB. CHECK the system operates correctly.

→ No

INSTALL a new wiper/washer switch. CHECK the system for proper operation.

L12: DETERMINE THE STATE IN WHICH THE MALFUNCTION OCCURS

1Enter the OFF position.

2Disconnect Rear Window Wiper Relay - C1018.

3Enter the ON position.

4Check the rear window wiper.

• Does the rear window wiper motor operate continuously?

→ Yes

Go to L13

→ No

CHECK the rear window wiper relay according to the component testing instructions supplied with the electrical diagrams; if necessary, INSTALL a new element. If the relay is OK, Go to L14

L13: CHECK 32-KA28 (WHITE/RED) CIRCUIT AT REAR WIPER MOTOR SECTION FOR SHORT TO POWER

1Enter the OFF position.

2Disconnect the Rear Window Wiper Motor - C971.

3Enter the ON position.

4Measure the voltage between rear window wiper motor pin 2 C971, circuit 32-KA28 (WH/RD), harness side and ground.

• Is battery voltage registered?

→ Yes

LOCATE and REPAIR the short to power in the circuit between the wiper relay and the wiper motor using the wiring diagrams. If necessary, INSTALL a new CJB. CHECK the system operates correctly.

→ No

INSTALL a new wiper motor. CHECK the system for proper operation.

L14: CHECK REAR WIPER RELAY CONTROL CIRCUIT FOR SHORT TO GROUND"

1Enter the OFF position.

2Disconnect the General Electronic Module (GEM) - C105.

3Measure the resistance between pin 2 of the rear window wiper relay C1018, CJB side, and ground.

• Does the resistance exceed 10 kOhm?

→ Yes

INSTALL a new Generic Electronic Module (GEM). CHECK the system for proper operation.

→ No

LOCATE and REPAIR the short to ground in the circuit between the rear wiper relay and the GEM using the wiring diagrams. INSTALL a new CJB if necessary. CHECK the system operates correctly.

M1: DETERMINE THE STATE IN WHICH THE MALFUNCTION OCCURS.

1Enter the ON position.

2Switch on LOW SPEED and HIGH SPEED MODEs in sequence.

3Check the windshield wipers.

• Is the wiper motor operating in high speed mode?

→ Yes

Windshield wipers do not operate in LOW SPEED: CHECK wiper/washer switch according to component testing instructions included with electrical diagrams; if necessary, INSTALL a new element. CHECK that the system is working properly.

Windshield wiper motor operates at high speed in LOW SPEED MODE: Go to M4

→ No

Go to M2

M2: CHECK VOLTAGE AT WINDSHIELD WIPER MOTOR

1Enter the OFF position.

2Disconnect Windshield Wiper Motor - C848.

3Enter the ON position.

4Turn on HIGH SPEED MODE.

5Measure the voltage between windshield wiper motor pin 4 C848, circuit 32-KA11 (WH/BLK), harness side and ground.

• Is battery voltage registered?

→ Yes

INSTALL a new wiper motor. CHECK the system for proper operation.

→ No

Go to M3

M3: CHECK WIPER/WASHER SWITCH

1Enter the OFF position.

2Disconnect Windscreen Wiper/Washer Switch - C441.

3CHECK the wiper/washer switch according to the component testing instructions provided with the electrical diagrams.

• Is the wiper/washer switch working properly?

→ Yes

LOCATE and REPAIR the open in circuit 32-KA11 (WH/BLK) between wiper/washer switch and wiper motor using the wiring diagrams. CHECK for proper system operation.

→ No

INSTALL a new wiper/washer switch. CHECK the system for proper operation.

M4: CHECK WIPER/WASHER SWITCH

1Disconnect Windscreen Wiper/Washer Switch - C441.

2CHECK the wiper/washer switch according to the component testing instructions provided with the electrical diagrams.

• Is the wiper/washer switch working properly?

→ Yes

CHECK the windshield wiper motor according to the component testing instructions included with this section. If necessary, INSTALL a new component. CHECK the system for proper operation.

→ No

INSTALL a new wiper/washer switch. CHECK the system for proper operation.

N1: CHECK THE SYSTEM USING WDS

1Connect the diagnostic tool.

2Check the system using WDS.

• Are any diagnostic trouble codes (DTCs) recorded?

→ Yes

TREAT the DTCs according to the WDS instructions, CLEAR the memory where the fault data is stored, and CHECK the system for proper operation.

→ No

Go to N₂

N₂: CHECK WIPER/WASHER SWITCH

1Enter the OFF position.

2Disconnect Windscreen Wiper/Washer Switch - C441.

3CHECK the wiper/washer switch according to the component testing instructions provided with the electrical diagrams.

• Is the wiper/washer switch working properly?

→ Yes

Go to N3

→ No

INSTALL a new wiper/washer switch. CHECK the system for proper operation.

N3: DETERMINE THE STATE IN WHICH THE MALFUNCTION OCCURS.

1Connect Windscreen Wiper/Washer Switch - C441.

2Determine the condition in which the fault occurs.

• Intermittent cleaning function not working?

→ Yes

Go to N4

→ No

The intermittent cleaning function does not work correctly: Go to N9

The ADJUSTABLE intermittent cleaning function is not working properly: Go to N8

N4: DETERMINE THE STATE IN WHICH THE MALFUNCTION OCCURS

1Enter the ON position.

2Turn on SINGLE CLEANING MODE:

3Check the windshield wipers.

• Windscreen wipers return to the off position:

→ Yes

Go to N5

→ No

Go to P1

N5: CHECK VOLTAGE AT WINDSHIELD WIPER RELAY

1Enter the OFF position.

2Disconnect Windshield Wiper Relay - C1019.

3Enter the ON position.

4Measure the voltage between pin 1 of the windshield wiper relay C1019, CJB side, and ground, and between pin 5, CJB side, and ground.

• Is battery voltage registered in both cases?

→ Yes

CHECK the windshield wiper relay according to the component testing instructions included with the electrical diagrams; if necessary, INSTALL a new element. If the relay is OK, Go to N6

→ No

INSTALL a new Central Junction Box (CJB). CHECK that the system is operating correctly.

N6: CHECK WINDSHIELD WIPER RELAY CONTROL CIRCUIT

NOTE:Turn off the windshield wipers.

1Enter the OFF position.

2Connect Windshield Wiper Relay - C1019.

3Disconnect the General Electronic Module (GEM) - C105.

4Enter the ON position.

5Connect a 10 A fused jumper wire between pin 21 C105 of the General Electronic Module (GEM), circuit 91S-KA12A (black/white), harness side, and ground.

6Reconnect the wire and test the wipers.

• Do the windshield wipers operate and return to the off position?

→ Yes

Go to N7

→ No

LOCATE and REPAIR the open in the circuit between the windshield wiper relay and the generic electronic module (GEM) pin 21 C105 using the wiring diagrams. INSTALL a new CJB if necessary. CHECK the system operates correctly.

N7: CHECK VOLTAGE AT COMMON ELECTRONIC MODULE (GEM)

1Enter the OFF position.

2Disconnect the General Electronic Module (GEM) - C104.

3Enter the ON position.

4Turn on INTERMITTENT CLEANING MODE.

5Measure the voltage between pin 4 C104 of the Generic Electronic Module (GEM), circuit 8-KA19 (WH/BLK), harness side, and ground.

• Is battery voltage registered?

→ Yes

INSTALL a new Generic Electronic Module (GEM). CHECK the system for proper operation.

→ No

LOCATE and REPAIR the open in circuit 8-KA19 (WH/BLK) between wiper/washer switch and GEM using the wiring diagrams. CHECK for proper system operation.

N8: CHECK VOLTAGE AT THE COMMON ELECTRONIC MODULE (GEM)

1Disconnect the General Electronic Module (GEM) - C105.

2Enter the ON position.

3Turn on INTERMITTENT CLEANING MODE.

4Measure the voltage between pin 4 C105 of the Generic Electronic Module (GEM), circuit 8-KA18 (white), harness side, and ground.

• Is voltage registered?

→ Yes

INSTALL a new Generic Electronic Module (GEM). CHECK the system for proper operation.

→ No

LOCATE and REPAIR the open in circuit 8-KA18 (white) between wiper/washer switch and GEM using the wiring diagrams. CHECK for proper system operation.

N9: CHECK VOLTAGE AT THE COMMON ELECTRONIC MODULE (GEM)

1Disconnect the General Electronic Module (GEM) - C103.

2Enter the ON position.

3Turn on LOW SPEED CLEANING MODE.

4Measure the voltage between pin 2 C103 of the Generic Electronic Module (GEM), circuit 32-KA9A (WH/BL), harness side, and ground.

• Is battery voltage registered during the cleaning cycle?

→ Yes

INSTALL a new Generic Electronic Module (GEM). CHECK the system for proper operation.

→ No

LOCATE and REPAIR the open in circuit 32-KA9A (White/Blue), between junction S77 and the Generic Electronic Module (GEM), using the wiring diagrams. CHECK for proper system operation.

O1: DETERMINE THE STATE IN WHICH THE MALFUNCTION OCCURS.

1Turn on the WINDSHIELD WASHER function taking into account the REAR WASHER operating mode.

2Determine the condition in which the fault occurs.

• The cleaning function does not work and the washing function works properly?

→ Yes

Go to O3

→ No

The wash and clean function does not work: Go to O2

O2: CHECK WIPER/WASHER SWITCH GROUND CONNECTION

1Enter the OFF position.

2Disconnect Windscreen Wiper/Washer Switch - C441.

3Measure the resistance between wiper/washer switch pin 3 C441, circuit 31-KA19 (Black), harness side and ground.

• Is the resistance less than 2 ohms?

→ Yes

INSTALL a new wiper/washer switch. CHECK the system for proper operation.

→ No

LOCATE and REPAIR the open in circuit 31-KA19 (Black) between wiper/washer switch and ground G14 using the wiring diagrams. CHECK for proper system operation.

O3: CHECK THE SYSTEM USING WDS

1Connect the diagnostic tool.

2Check the system using WDS.

• Are any diagnostic trouble codes (DTCs) recorded?

→ Yes

TREAT the DTCs according to the WDS instructions, CLEAR the memory where the fault data is stored, and CHECK the system for proper operation.

→ No

Go to O4

O4: CHECK WIPER/WASHER SWITCH

1Enter the OFF position.

2Disconnect Windscreen Wiper/Washer Switch - C441.

3Check the wiper/washer switch according to the component testing instructions included with the electrical diagrams.

• Is the switch working properly?

→ Yes

Windshield wiper function not working: Go to O5

Rear window wiper function does not work: Go to O6

→ No

INSTALL a new wiper/washer switch. CHECK the system for proper operation.

O5: CHECK VOLTAGE AT COMMON ELECTRONIC MODULE (GEM) IN ELECTRICAL CIRCUIT 32-KA6A (WHITE/BLACK)

1Disconnect the General Electronic Module (GEM) - C104.

2Enter the ON position.

3Turn on the WINDSHIELD WASHER.

4Measure the voltage between pin 5 C104 of the Generic Electronic Module (GEM), circuit 32-KA6A (WH/BLK), harness side, and ground.

• Is battery voltage registered?

→ Yes

INSTALL a new Generic Electronic Module (GEM). CHECK the system for proper operation.

→ No

LOCATE and CORRECT a break in the electrical circuit 32-KA6(A) (white/black), between the wiper/washer switch and the common electronic module (GEM), using electrical diagrams. CHECK that the system is working correctly.

O6: CHECK VOLTAGE AT COMMON ELECTRONIC MODULE (GEM) IN ELECTRICAL CIRCUIT 33-KA6 (YELLOW/BLACK)

1Disconnect the General Electronic Module (GEM) - C105.

2Enter the ON position.

3Turn on the REAR WINDOW WASHER.

4Measure the voltage between pin 2 of the Generic Electronic Module (GEM) C105, circuit 33-KA6 (Yellow/Black), harness side and ground.

• Is battery voltage registered?

→ Yes

INSTALL a new Generic Electronic Module (GEM). CHECK the system for proper operation.

→ No

LOCATE and REPAIR the open in circuit 33-KA6 (Yellow/Black) between wiper/washer switch and GEM using the wiring diagrams. CHECK for proper system operation.

P1: CHECK THE SYSTEM USING WDS

1Check the system using WDS.

• Are any diagnostic trouble codes (DTCs) recorded?

→ Yes

TREAT the DTCs according to the WDS instructions, CLEAR the memory where the fault data is stored, and CHECK the system for proper operation.

→ No

Go to P2

P2: DETERMINE THE STATE IN WHICH THE MALFUNCTION OCCURS.

1Determine the condition in which the fault occurs.

• Windshield wiper retract function not working?

→ Yes

Go to P3

→ No

Rear window wiper does not stop in the correct idle position: Go to P8

P3: CHECK VOLTAGE AT WINDSHIELD WIPER MOTOR

1Enter the OFF position.

2Disconnect Windshield Wiper Motor - C848.

3Enter the ON position.

4Measure the voltage between windshield wiper motor C848 pin 3, circuit 15-KA9 (Green/Red), harness side and ground.

• Is battery voltage registered?

→ Yes

Go to P4

→ No

LOCATE and REPAIR the open in circuit 15-KA9 (Green/Red) between fuse F56 (CJB) and windshield wiper motor using the electrical circuit diagrams. CHECK the system for proper operation.

P4: CHECK WINDSHIELD WIPER RELAY

1Enter the OFF position.

2Disconnect Windshield Wiper Relay - C1019.

3Test the windshield wiper relay according to the component testing instructions included with the electrical diagrams.

• Is the relay working properly?

→ Yes

Go to P5

→ No

INSTALL a new windshield wiper relay. CHECK the system for proper operation.

P5: CHECK WINDSHIELD WIPER MOTOR

1CHECK the windshield wiper motor according to the component testing instructions included with this section.

• Is the windshield wiper motor in good condition?

→ Yes

Go to P6

→ No

INSTALL a new wiper motor. CHECK the system for proper operation.

P6: CHECK VOLTAGE AT WINDSHIELD WIPER MOTOR

1Enter the OFF position.

2Connect a fused (10A) jumper wire to connector C1019 of the windscreen wiper relay, between pin 4 and pin 5, at the CJB side.

3Enter the ON position.

4Measure the voltage between windshield wiper motor pin 2 C848, circuit 32-KA9 (WH/BL), harness side and ground.

• Is battery voltage registered?

→ Yes

Go to P7

→ No

LOCATE and REPAIR the open in the circuit between the windshield wiper relay and the windshield wiper motor using the wiring diagrams. If necessary, INSTALL a new CJB. CHECK the system operates correctly.

P7: CHECK VOLTAGE AT WIPER/WASHER SWITCH

1Enter the OFF position.

2Disconnect Windscreen Wiper/Washer Switch - C441.

3Connect a fused (10A) jumper wire to connector C1019 of the windscreen wiper relay, between pin 3 and pin 5, at the CJB side.

4Enter the ON position.

5Measure the voltage between wiper/washer switch pin 7 C441, circuit 32-KA19(A) (WH/BK), harness side and ground.

• Is battery voltage registered?

→ Yes

INSTALL a new wiper/washer switch. CHECK the system for proper operation.

→ No

LOCATE and REPAIR the open in the circuit between the windscreen wiper relay and the wiper/washer switch pin 7 C441 using the electrical circuit diagrams. If necessary, INSTALL a new CJB. CHECK the system operates correctly.

P8: CHECK VOLTAGE AT REAR WIPER MOTOR

1Enter the OFF position.

2Disconnect the Rear Window Wiper Motor - C971.

3Enter the ON position.

4Measure the voltage between rear window wiper motor pin 1 C971, circuit 15-KA28 (GN/BR), harness side and ground.

• Is battery voltage registered?

→ Yes

INSTALL a new wiper motor. CHECK the system for proper operation.

→ No

LOCATE and REPAIR the open in the circuit between fuse F43 (CJB) and rear window wiper motor pin 1 C971 using the electrical circuit diagrams. If necessary, INSTALL a new CJB. CHECK the system operates correctly.

Q1: DETERMINE THE STATE IN WHICH THE MALFUNCTION OCCURS.

1Determine the condition in which the fault occurs.

• The front and rear window washer function does not work?

→ Yes

Go to Q2

→ No

Front or Rear Window: INSTALL a new wiper/washer switch. CHECK for proper operation of the system.

Q2: CHECK THE VOLTAGE AT THE WINDSHIELD WASHER PUMP MOTOR

NOTE:Turn off the windshield wipers.

1Enter the OFF position.

2Disconnect Windscreen Washer Pump Motor - C828.

3Enter the ON position.

4Measure the voltage between pin 1 C828 windshield washer pump motor, circuit 32-KA34 (WH/BLK), harness side and ground.

• Is battery voltage registered?

→ Yes

Go to Q3

→ No

LOCATE and REPAIR the open in circuit 32-KA34 (WH/BLK) between wiper/washer switch and washer pump motor using the electrical circuit diagrams. CHECK for proper system operation.

Q3: CHECK THE VOLTAGE AT THE WINDSHIELD WASHER PUMP MOTOR

1Measure the voltage between pin 2 C828 windshield washer pump motor, circuit 33-KA34 (YE/BLK), harness side and ground.

• Is battery voltage registered?

→ Yes

INSTALL a new windshield washer pump motor. CHECK that the system is operating correctly.

→ No

LOCATE and REPAIR the open in circuit 33-KA34 (Yellow/Black) between wiper/washer switch and washer pump motor using the electrical circuit diagrams. CHECK for proper system operation.

R1: CHECK POWER SUPPLY TO HEADLAMP WASHER RELAY

1Enter the OFF position.

2Disconnect Headlamp Washer Relay - C1004.

3Enter the ON position.

4Measure the voltage between pin 2 of the headlamp washer relay C1004, circuit 30-KA23 (RED), BJB side and ground.

• Is battery voltage registered?

→ Yes

Go to R4

→ No

Go to R2

R2: CHECK FUSE F13

1Enter the OFF position.

2CHECK Fuse F13 (BJB).

3CHECK FUSE F13 (30A)

• Is the fuse good?

→ Yes

Go to R3

→ No

Install a new fuse F13 (30A). If the fuse blows again, LOCATE and REPAIR the short circuit using the wiring diagrams. CHECK the system for proper operation.

R3: CHECK POWER SUPPLY TO FUSE F13 (BJB)

1Enter the ON position.

2Measure the voltage between fuse F13 (BJB) and ground.

• Is battery voltage registered?

→ Yes

Go to R4

→ No

Check BJB. If necessary, INSTALL a new element. CHECK the system for proper operation.

R4: CHECK CONTROL CIRCUIT (WHEN HEADLIGHTS ON) OF HEADLIGHT WASHER RELAY

1Enter the OFF position.

2Connect Fuse F13 (BJB).

3Enter the ON position.

4Turn the light switch to the "LOW BEAM" position.

5Measure the voltage between pin 5 of the headlamp washer relay C1004, circuit 15S-KA22 (GN/BR), BJB side and ground.

• Is battery voltage registered?

→ Yes

Go to R5

→ No

LOCATE and REPAIR the open in the electrical circuit between the light switch and the headlamp washer relay using the wiring diagrams. CHECK the system for proper operation.

R5: CHECK GROUND CONNECTION OF HEADLAMP WASHER RELAY

1Turn the light switch to the "OFF" position.

2Enter the OFF position.

3Measure the resistance between pin 1 of the headlamp washer relay C1004, circuit 31-KA22 (Black), BJB side and ground.

• Is the resistance less than 2 ohms?

→ Yes

Go to R6

→ No

LOCATE and REPAIR the open in the circuit between the headlamp washer relay and ground G37 using the electrical circuit diagrams. CHECK for proper system operation.

R6: CHECK CONTROL CIRCUIT (WITH WASHER ON) TO HEADLAMP WASHER RELAY

1Enter the OFF position.

2During measurement, use the WINDSHIELD WASHER.

3Measure the resistance between pin 3 of the headlamp washer relay C1004, circuit 32-KA22 (WH/RD) and ground.

• Is the resistance less than 2 ohms?

→ Yes

Go to R7

→ No

LOCATE and REPAIR the open in the circuit between headlamp washer relay pin 3 C1004 and splice S128 using the wiring diagrams. CHECK the system for proper operation.

R7: CHECK THE HEADLAMP WASHER PUMP.

1Connect Headlight Washer Relay - C1004.

2Disconnect Headlamp Washer Pump Motor - C745.

3Enter the ON position.

4Turn the light switch to the "LOW BEAM" position.

5During measurement, use the WINDSHIELD WASHER.

6Measure the voltage between headlamp washer pump motor pin 1 C745, circuit 15S-KA21 (Green/Yellow), harness side and ground.

• Is battery voltage registered?

→ Yes

Go to R8

→ No

LOCATE and REPAIR the open in the circuit between pin 4 of the C1004 headlamp washer relay and the headlamp washer pump motor using the electrical circuit diagrams. CHECK for proper system operation.

R8: CHECK HEADLAMP WASHER PUMP GROUND CONNECTION

1Enter the OFF position.

2Measure the resistance between pin 2 C745 headlamp washer pump motor, circuit 31-KA21 (black), harness side and ground.

• Is the resistance less than 2 ohms?

→ Yes

CHECK the headlamp washer pump motor. If necessary, INSTALL a new element. CHECK the system for proper operation.

→ No

LOCATE and REPAIR the open in the circuit between the headlamp washer pump motor and ground G37 using the electrical circuit diagrams. CHECK for proper system operation.