Wiper pinpoint tests (vehicles after 08.2001)

K1: CHECK FUSE F56 (CJB)

1 Enter the OFF position.

2 CHECK Fuse F56 (CJB).

3 CHECK FUSE F56 (20 A)

• Is the fuse good?

→ Yes

Go to K2

→ No

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

K2: CHECK FUSE VOLTAGE F56 (CJB)

1 Enter the OFF position.

2 Connect Fuse F56 (CJB).

3 Drive the ON position.

4 Measure the voltage between fuse F56 and "weight ".

• Does the battery voltage register?

→ Yes

Rear window wiper not working: Go to K3

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

→ No

CHECK CJB; if necessary, INSTALL a new CJB. CHECK the system is working properly.

K3: CHECK FUSE F43 (CJB)

1 Enter the OFF position.

2 CHECK Fuse F43 (CJB).

3 CHECK FUSE F43 (15 A)

• Is the fuse good?

→ Yes

Go to K4

→ No

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

K4: CHECK FUSE VOLTAGE F43 (CJB)

1 Enter the OFF position.

2 Connect Fuse F43 (CJB).

3 Drive the ON position.

4 Measure the voltage between fuse F43 and "weight".

• Does the battery voltage register?

→ Yes

Go to K5

→ No

CHECK CJB; if necessary, INSTALL a new CJB. CHECK the system is working properly.

K5: CHECK THE SYSTEM USING WDS

1 Connect the diagnostic tool.

2 Check the system using WDS

• Any DTCs registered (DTC)?

→ Yes

PROCESS DTCs according to WDS instructions. CLEAR fault memory and CHECK the system is operating correctly.

→ No

Go to K6

K6: CHECK VOLTAGE AT WIPER/WASH SWITCH

1 Enter the OFF position.

2 Disconnect Wiper/Washer Switch - C441.

3 Drive the ON position.

4 Measure the voltage between pin 6 of C441 wiper/washer switch circuit 15-KA19 (A) (green/orange), on the wiring harness side, and "weight".

• Does the battery voltage register?

→ Yes

Go to K7

→ No

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

K7: INSPECT WIPER/WASH SWITCH

1 Enter the OFF position.

2 Test the wiper/washer switch according to the component test instructions included with the electrical diagrams.

• Is the wiper/washer switch OK?

→ 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 is working properly.

K8: CHECK REAR WIPER RELAY VOLTAGE (PIN 1)

1 Enter the OFF position.

2 Disconnect the Rear Wiper Relay - C1018.

3 Drive the ON position.

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

• Does the battery voltage register?

→ Yes

Go to K9

→ No

CHECK CJB; if necessary, INSTALL a new CJB. CHECK the system is working properly.

K9: CHECK REAR WIPER RELAY VOLTAGE (PIN 5)

1 Measure the voltage between C101 rear wiper relay pin 5, CJB side, and "weight".

• Does the battery voltage register?

→ Yes

Go to K10

→ No

CHECK CJB; if necessary, INSTALL a new CJB. CHECK the system is working properly.

K10: INSPECT REAR WIPER RELAY POWER CIRCUIT

1 Enter the OFF position.

2 Disconnect the Rear Wiper Motor - C971.

3 Connect the connection wire with fuse (15 A) to the C1018 rear window wiper relay connector, between pin 3 and pin 5, on the CJB side.

4 Drive the ON position.

5 Measure the voltage between pin 2 of the C971 rear window wiper motor circuit 32-KA28 (white/red), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

Go to K11

→ No

LOCATE and REPAIR the open circuit between the rear window wiper relay and the rear window wiper motor using the electrical circuit diagrams. If necessary, INSTALL a new CJB. CHECK the system is working properly.

K11: INSPECT REAR WIPER RELAY CONTROL CIRCUIT

1 Enter the OFF position.

2 Connect Rear Wiper Relay - C1018.

3 Drive the ON position.

4 Turn on REAR WIPER.

5 Measure the voltage between pin 2 of the C971 rear window wiper motor circuit 32-KA28 (white/red), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

Go to K13

→ No

INSPECT the rear window wiper relay in accordance with the component test instructions included with the wiring diagrams; if necessary, INSTALL the new item. If the relay is OK, Go to K12

K12: CHECK REAR WIPER MOTOR VOLTAGE

1 Measure the voltage between pin 1 of the C971 rear window wiper motor circuit 15-KA28 (green/brown), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

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

→ No

LOCATE and REPAIR open circuit between fuse F43 (CJB) and the rear window wiper motor using the wiring diagrams. If necessary, INSTALL a new CJB. CHECK the system is working properly.

K13: INSPECT REAR WIPER RELAY CONTROL CIRCUIT

1 Enter the OFF position.

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

3 Drive the ON position.

4 Measure the resistance between C1018 rear wiper relay pin 2, CJB side, and C105 general electronics pin 17 (GEM), electrical circuit 91S-KA29 (black/yellow), from the wiring harness side.

• Is the resistance less than 2 ohms?

→ Yes

INSTALL a new common electronics module (GEM). CHECK the system is working properly.

→ No

LOCATE and REPAIR open circuit between rear window wiper relay and common electronic module (GEM), using electrical diagrams. If necessary, INSTALL a new CJB. CHECK the system is working properly.

K14: CHECK WINDSHIELD WIPER MOTOR VOLTAGE

1 Connect Wiper/Washer Switch - C441.

2 Disconnect the Windshield Wiper Motor - C848.

3 Drive the ON position.

4 Turn on the SLOW WIPER MODE.

5 Measure the voltage between pin 5 of the C848 windshield wiper motor circuit 32-KA10 (white/green), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

Go to K15

→ No

LOCATE and REPAIR open circuit 32-KA10 (white/green), between the wiper/washer switch and the wiper motor using the wiring diagrams. CHECK the system is working properly.

K15: CHECK WINDSHIELD WIPER MOTOR GROUND CONNECTION

1 Enter the OFF position.

2 Measure the resistance between C848 windshield wiper motor pin 1, circuit 31-KA9 (black), from the wiring side, and "weight".

• Is the resistance less than 2 ohms?

→ Yes

INSPECT the windshield wiper motor according to the item test instructions included with this section; if necessary, INSTALL the new element. CHECK the system is working properly.

→ No

LOCATE and REPAIR open circuit 31-KA9 (black), between wiper motor and connection S121 ("weight" G37), using electrical diagrams. CHECK the system is working properly.

L1: CHECK THE SYSTEM USING WDS

1 Connect the diagnostic tool.

2 Check the system using WDS.

• Any DTCs registered (DTC)?

→ Yes

PROCESS DTCs according to WDS instructions. CLEAR fault memory and CHECK the system is operating correctly.

→ No

Windshield wipers on continuously: Go to L2

Rear wiper on continuously: Go to L12

L2: IDENTIFY THE STATE IN WHICH THE FAULT IS APPEARING.

1 Determine the state in which the fault occurs.

• Are the purifiers on continuously in the low speed purge 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 FAULT IS MANIFESTED

NOTE: Turn off the windshield wipers

1 Enter the OFF position.

2 Disconnect the Windshield Wiper Motor - C848.

3 Drive the ON position.

4 Measure the voltage between C848 pin 5 of the windshield wiper motor circuit 32-KA10 (white/green), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

Go to L4

→ No

INSPECT the windshield wiper motor according to the item test instructions included with this section; if necessary, INSTALL the new item. CHECK the system is working properly.

L4: INSPECT CIRCUIT 32-KA10 (WHITE/GREEN) ON THE SECTION OF THE ELECTRIC MOTOR OF THE WINDSHIELD CLEANER FOR A SHORT CIRCUIT TO THE POWER SUPPLY

1 Enter the OFF position.

2 Disconnect Wiper/Washer Switch - C441.

3 Drive the ON position.

4 Measure the voltage between C848 pin 5 of the windshield wiper motor circuit 32-KA10 (white/green), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

LOCATE and REPAIR short to power on circuit 32-KA10 (white/green), between the wiper/washer switch and the wiper motor using the wiring diagrams. CHECK the system is working properly.

→ No

Go to L5

L5: CHECK VOLTAGE AT WIPER/WASH SWITCH

1 Measure the voltage between pin 7 of C441 wiper/washer switch circuit 32-KA19 (A) (white/black), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

Go to L6

→ No

INSTALL a new wiper/washer switch. CHECK the system is working properly.

L6: INSPECT WINDSHIELD WIPER RELAY

1 Enter the OFF position.

2 Disconnect Windshield Wiper Relay - C1019.

3 INSPECT the windshield wiper relay according to the component test instructions included with the wiring diagrams.

• Relay OK?

→ Yes

Go to L7

→ No

INSTALL a new wiper relay. CHECK the system is working properly.

L7: INSPECT WINDSHIELD WIPER RELAY CONTROL CIRCUIT FOR A SHORT TO "MASS"

1 Enter the OFF position.

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

3 Drive the ON position.

4 Measure the resistance between C1019 windshield wiper relay pin 2, CJB side, and "weight".

• Is the resistance greater than 10 kΩ?

→ Yes

INSTALL a new common electronics module (GEM). CHECK the system is working properly.

→ No

LOCATE and REPAIR short circuit to "mass" in the electrical circuit between the windshield wiper relay and the common electronic module (GEM), using electrical diagrams. If necessary, INSTALL a new CJB. CHECK the system is working properly.

L8: INSPECT CIRCUIT 8-KA19 (A) (WHITE/BLACK) AT WIPER/WASHER SWITCH AREA TO SHORT TO POWER SUPPLY

1 Enter the OFF position.

2 Disconnect Wiper/Washer Switch - C441.

3 Drive the ON position.

4 Measure the voltage between pin 10 of C441 wiper/washer switch circuit 8-KA19 (white/black), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

LOCATE and REPAIR short to power on circuit 8-KA19 (A) (white/black), between wiper/washer switch and common electronic module (GEM), using electrical diagrams. CHECK the system is working properly.

→ No

Go to L9

L9: CHECK WIPER/WASH SWITCH

1 INSPECT the wiper/washer switch according to the component test instructions included with the wiring diagrams.

• Is the switch OK?

→ Yes

INSTALL a new common electronics module (GEM). CHECK the system is working properly.

→ No

INSTALL a new wiper/washer switch. CHECK the system is working properly.

L10: IDENTIFY THE STATE IN WHICH THE FAULT IS MANIFESTED

1 Enter the OFF position.

2 Disconnect the Windshield Wiper Motor - C848.

3 Drive the ON position.

4 Measure the voltage between pin 4 of the C848 windshield wiper motor circuit 32-KA11 (white/black), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

Go to L11

→ No

INSTALL a new wiper motor. CHECK the system is working properly.

L11: INSPECT WIPER/WASH SWITCH

1 Enter the OFF position.

2 Disconnect Wiper/Washer Switch - C441.

3 INSPECT the wiper/washer switch according to the component test instructions included with the wiring diagrams.

• Is the switch OK?

→ Yes

LOCATE and REPAIR short to power in the circuits connected to pin 8 of C441 wiper/washer switch using the electrical circuit diagrams. If necessary, INSTALL a new CJB. CHECK the system is working properly.

→ No

INSTALL a new wiper/washer switch. CHECK the system is working properly.

L12: IDENTIFY THE STATE IN WHICH THE FAULT IS MANIFESTED

1 Enter the OFF position.

2 Disconnect the Rear Wiper Relay - C1018.

3 Drive the ON position.

4Check the rear window wiper.

• Is the rear window wiper motor running continuously?

→ Yes

Go to L13

→ No

INSPECT the rear window wiper relay in accordance with the component test instructions included with the wiring diagrams; if necessary, INSTALL the new element. If the relay is OK, Go to L14

L13: CHECK CIRCUIT 32-KA28 (WHITE/RED) ON THE SECTION OF THE ELECTRIC MOTOR OF THE REAR WINDOW CLEANER FOR A SHORT CIRCUIT TO THE POWER SUPPLY

1 Enter the OFF position.

2 Disconnect the Rear Wiper Motor - C971.

3 Drive the ON position.

4 Measure the voltage between pin 2 of the C971 rear window wiper motor circuit 32-KA28 (white/red), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

LOCATE and REPAIR short to power in the electrical circuit between the wiper relay and the wiper motor using the electrical circuit diagrams. If necessary, INSTALL a new CJB. CHECK the system is working properly.

→ No

INSTALL a new wiper motor. CHECK the system is working properly.

L14: INSPECT REAR WIPER RELAY CONTROL CIRCUIT FOR A SHORT TO "MASS"

1 Enter the OFF position.

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

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

• Is the resistance greater than 10 kΩ?

→ Yes

INSTALL a new common electronics module (GEM). CHECK the system is working properly.

→ No

LOCATE and REPAIR short circuit to "mass" in the electrical circuit between the rear window wiper relay and the common electronic module (GEM), using electrical diagrams. If necessary, INSTALL a new CJB. CHECK the system is working properly.

M1: IDENTIFY THE STATE IN WHICH THE FAULT IS APPEARING.

1 Drive the ON position.

2 Switch on LOW SPEED and HIGH SPEED in sequence.

3 Check the windshield wipers.

• Is the wiper motor running in high speed?

→ Yes

Wipers do not operate in LOW SPEED MODE: INSPECT the wiper/washer switch according to the component test instructions included with the electrical diagrams; if necessary, INSTALL the new element. CHECK the system is working properly.

Wiper motor running at high speed in LOW SPEED MODE: Go to M4

→ No

Navigate to M2

M2: CHECK WINDSHIELD WIPER MOTOR VOLTAGE

1 Enter the OFF position.

2 Disconnect the Windshield Wiper Motor - C848.

3 Drive the ON position.

4 Turn on HIGH SPEED MODE.

5 Measure the voltage between pin 4 C848 windshield wiper motor circuit 32-KA11 (white/black), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

INSTALL a new wiper motor. CHECK the system is working properly.

→ No

Go to M3

M3: CHECK WIPER/WASH SWITCH

1 Enter the OFF position.

2 Disconnect Wiper/Washer Switch - C441.

3 INSPECT the wiper/washer switch according to the component test instructions included with the wiring diagrams.

• Is the wiper/washer switch OK?

→ Yes

LOCATE and REPAIR open circuit 32-KA11 (white/black), between the wiper/washer switch and the wiper motor using the wiring diagrams. CHECK the system is working properly.

→ No

INSTALL a new wiper/washer switch. CHECK the system is working properly.

M4: INSPECT WIPER/WASH SWITCH

1 Disconnect Wiper/Washer Switch - C441.

2 INSPECT the wiper/washer switch according to the component test instructions included with the electrical diagrams.

• Is the wiper/washer switch OK?

→ Yes

INSPECT the windshield wiper motor according to the item test instructions included with this section. If necessary, INSTALL the new element. CHECK the system is working properly.

→ No

INSTALL a new wiper/washer switch. CHECK the system is working properly.

N1: CHECK THE SYSTEM USING WDS

1 Connect the diagnostic tool.

2 Check the system using WDS.

• Any DTCs registered (DTC)?

→ Yes

PROCESS DTCs according to WDS instructions. CLEAR fault memory and CHECK the system is operating correctly.

→ No

Go to N2

N2: INSPECT WIPER/WASH SWITCH

1 Enter the OFF position.

2 Disconnect Wiper/Washer Switch - C441.

3 INSPECT the wiper/washer switch according to the component test instructions included with the wiring diagrams.

• Is the wiper/washer switch OK?

→ Yes

Go to N3

→ No

INSTALL a new wiper/washer switch. CHECK the system is working properly.

N3: IDENTIFY THE STATE IN WHICH THE FAULT IS APPEARING.

1 Connect Wiper/Washer Switch - C441.

2 Determine the state in which the fault occurs.

• Does the intermittent cleaning function not work?

→ Yes

Go to N4

→ No

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

The ADJUSTABLE intermittent cleaning function does not work properly: Go to N8

N4: IDENTIFY THE FAULTY STATE

1 Drive the ON position.

2 Enable SINGLE CLEAN MODE:

3 Check the windshield wipers.

• Windshield wipers return to non-working position:

→ Yes

Go to N5

→ No

Go to P1

N5: CHECK WINDSHIELD WIPER RELAY VOLTAGE

1 Enter the OFF position.

2 Disconnect Windshield Wiper Relay - C1019.

3 Drive the ON position.

4 Measure the voltage between C1019 windshield wiper relay pin 1, CJB side, and "weight", and between pin 5, on the CJB side, and "weight".

• Is the battery voltage recorded in both cases?

→ Yes

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

→ No

INSTALL a new central junction box (CJB). CHECK the system is working properly.

N6: INSPECT WINDSHIELD WIPER RELAY CONTROL CIRCUIT

NOTE: Turn off the windshield wipers.

1 Enter the OFF position.

2 Connect Windshield Wiper Relay - C1019.

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

4 Drive the ON position.

5 Connect the connecting wire with fuse (10 A) between pin 21 C105 of the general electronic module (GEM), electrical circuit 91S-KA12A (black/white), from the wiring side, and "weight".

6 Reconnect the wire and check the wipers.

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

→ Yes

Go to N7

→ No

LOCATE and REPAIR open circuit between windshield wiper relay and C105 GEM pin 21 (GEM), using electrical diagrams. If necessary, INSTALL a new CJB. CHECK the system is working properly.

N7: CHECK VOLTAGE ON COMMON ELECTRONIC MODULE (GEM)

1 Enter the OFF position.

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

3 Drive the ON position.

4 Enable INTERMITTENT CLEANING MODE.

5 Measure the voltage between C104 pin 4 of the GEM (GEM), electrical circuit 8-KA19 (white/black), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

INSTALL a new common electronics module (GEM). CHECK the system is working properly.

→ No

LOCATE and REPAIR open circuit 8-KA19 (white/black), between wiper/washer switch and common electronic module (GEM), using electrical diagrams. CHECK the system is working properly.

N8: CHECK VOLTAGE ON COMMON ELECTRONIC MODULE (GEM)

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

2 Drive the ON position.

3 Turn ON INTERMITTENT CLEANING MODE.

4 Measure the voltage between pin 4 of the C105 GEM (GEM), electrical circuit 8-KA18 (white), from the wiring side, and "weight".

• Is voltage being registered?

→ Yes

INSTALL a new common electronics module (GEM). CHECK the system is working properly.

→ No

LOCATE and REPAIR open circuit 8-KA18 (white), between wiper/washer switch and common electronic module (GEM), using electrical diagrams. CHECK the system is working properly.

N9: CHECK VOLTAGE ON COMMON ELECTRONIC MODULE (GEM)

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

2 Drive the ON position.

3 Turn on SLOW SPEED CLEANING MODE.

4Measure the voltage between pin 2 of C103 GEM (GEM), electrical circuit 32-KA9A (white/blue), from the wiring side, and "weight".

• Does battery voltage register during the cleaning cycle?

→ Yes

INSTALL a new common electronics module (GEM). CHECK the system is working properly.

→ No

LOCATE and REPAIR open circuit 32-KA9A (white/blue), between connection S77 and common electronic module (GEM), using electrical diagrams. CHECK the system is working properly.

O1: IDENTIFY THE STATE IN WHICH THE FAULT IS APPEARING.

1 Activate the WINDSHIELD WASH function according to the REAR WASH mode.

2 Determine the state in which the fault occurs.

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

→ Yes

Go to O3

→ No

Wash and clean function not working: Go to O2

O2: CHECK GROUND CONNECTION OF WIPER/WASH SWITCH

1 Enter the OFF position.

2 Disconnect Wiper/Washer Switch - C441.

3 Measure the resistance between pin 3 of C441 wiper/washer switch circuit 31-KA19 (black), from the wiring side, and "weight".

• Is the resistance less than 2 ohms?

→ Yes

INSTALL a new wiper/washer switch. CHECK the system is working properly.

→ No

LOCATE and REPAIR open circuit 31-KA19 (black), between the wiper/washer switch and "weight" G14 using the wiring diagrams. CHECK the system is working properly.

O3: CHECK THE SYSTEM USING WDS

1 Connect the diagnostic tool.

2 Check the system using WDS.

• Any DTCs registered (DTC)?

→ Yes

PROCESS DTCs according to WDS instructions. CLEAR fault memory and CHECK the system is operating correctly.

→ No

Go to O4

O4: CHECK WIPER/WASH SWITCH

1 Enter the OFF position.

2 Disconnect Wiper/Washer Switch - C441.

3 Test the wiper/washer switch according to the component test instructions included with the wiring diagrams.

• Is the switch OK?

→ Yes

Windshield wipe function not working: Go to O5

Rear window wiper does not work: Go to O6

→ No

INSTALL a new wiper/washer switch. CHECK the system is working properly.

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

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

2 Drive the ON position.

3 Turn on the WINDSHIELD WASHER.

4 Measure the voltage between pin 5 of C104 of the general electronic module (GEM), electrical circuit 32-KA6A (white/black), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

INSTALL a new common electronics module (GEM). CHECK the system is working properly.

→ No

LOCATE and REPAIR open circuit 32-KA6 (A) (white/black), between wiper/washer switch and common electronic module (GEM), using electrical diagrams. CHECK the system is working properly.

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

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

2 Drive the ON position.

3 Turn on the REAR WASHER.

4Measure the voltage between pin 2 of C105 GEM (GEM), electrical circuit 33-KA6 (yellow/black), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

INSTALL a new common electronics module (GEM). CHECK the system is working properly.

→ No

LOCATE and REPAIR open circuit 33-KA6 (yellow/black), between wiper/washer switch and common electronic module (GEM), using electrical diagrams. CHECK the system is working properly.

P1: CHECK THE SYSTEM USING WDS

1 Check the system using WDS.

• Any DTCs registered (DTC)?

→ Yes

PROCESS DTCs according to WDS instructions. CLEAR fault memory and CHECK the system is operating correctly.

→ No

Go to P2

P2: IDENTIFY THE STATE IN WHICH THE FAULT IS APPEARING.

1 Determine the state in which the fault occurs.

• Does the windshield wipers' reset function not work?

→ Yes

Go to P3

→ No

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

P3: CHECK WINDSHIELD WIPER MOTOR VOLTAGE

1 Enter the OFF position.

2 Disconnect the Windshield Wiper Motor - C848.

3 Drive the ON position.

4 Measure the voltage between C848 pin 3 of the windshield wiper motor, circuit 15-KA9 (green/red), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

Go to P4

→ No

LOCATE and REPAIR open circuit 15-KA9 (green/red), between fuse F56 (CJB) and the windshield wiper motor using the wiring diagrams. CHECK the system is working properly.

P4: INSPECT WINDSHIELD WIPER RELAY

1 Enter the OFF position.

2 Disconnect Windshield Wiper Relay - C1019.

3 Test the windshield wiper relay according to the component test instructions included with the wiring diagrams.

• Relay OK?

→ Yes

Go to P5

→ No

INSTALL a new windshield wiper relay. CHECK the system is working properly.

P5: INSPECT WINDSHIELD WIPER MOTOR

1 INSPECT the windshield wiper motor according to the component test instructions included with this section.

• Is the wiper motor OK?

→ Yes

Go to P6

→ No

INSTALL a new wiper motor. CHECK the system is working properly.

P6: CHECK WINDSHIELD WIPER MOTOR VOLTAGE

1 Enter the OFF position.

2 Connect the connection wire with fuse (10 A) to C1019 windshield wiper relay connector, between pin 4 and pin 5, CJB side.

3 Drive the ON position.

4 Measure the voltage between C848 pin 2 of the windshield wiper motor circuit 32-KA9 (white/blue), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

Go to P7

→ No

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

P7: CHECK VOLTAGE AT WIPER/WASH SWITCH

1 Enter the OFF position.

2 Disconnect Wiper/Washer Switch - C441.

3 Connect the connection wire with fuse (10 A) to C1019 windshield wiper relay connector, between pin 3 and pin 5, CJB side.

4 Drive the ON position.

5 Measure the voltage between pin 7 of C441 wiper/washer switch circuit 32-KA19 (A) (white/black), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

INSTALL a new wiper/washer switch. CHECK the system is working properly.

→ No

LOCATE and REPAIR the open circuit between the windshield wiper relay and C441 pin 7 of the wiper/washer switch using the electrical circuit diagrams. If necessary, INSTALL a new CJB. CHECK the system is working properly.

P8: CHECK REAR WIPER MOTOR VOLTAGE

1 Enter the OFF position.

2 Disconnect the Rear Wiper Motor - C971.

3 Drive the ON position.

4 Measure the voltage between pin 1 of the C971 rear window wiper motor circuit 15-KA28 (green/brown), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

INSTALL a new wiper motor. CHECK the system is working properly.

→ No

LOCATE and REPAIR open circuit between fuse F43 (CJB) and pin 1 C971 rear wiper motor, using the wiring diagrams. If necessary, INSTALL a new CJB. CHECK the system is working properly.

Q1: IDENTIFY THE STATE IN WHICH THE FAULT IS APPEARING.

1 Determine the state in which the fault occurs.

• Front and rear window washer not working?

→ Yes

Go to Q2

→ No

Front or rear window: INSTALL a new wiper/washer switch. CHECK the system is working properly.

Q2: CHECK WASHER PUMP MOTOR VOLTAGE

NOTE: Turn off the windshield wipers.

1 Enter the OFF position.

2 Disconnect the Windscreen Washer Pump Motor - C828.

3 Drive the ON position.

4 Measure the voltage between pin 1 of the C828 washer pump motor circuit 32-KA34 (white/black), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

Go to Q3

→ No

LOCATE and REPAIR open circuit 32-KA34 (white/black), between the wiper/washer switch and the washer pump motor using the wiring diagrams. CHECK the system is working properly.

Q3: CHECK WASHER PUMP MOTOR VOLTAGE

1 Measure the voltage between pin 2 of the C828 washer pump motor circuit 33-KA34 (yellow/black), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

INSTALL a new washer pump motor. CHECK the system is working properly.

→ No

LOCATE and REPAIR open circuit 33-KA34 (yellow/black), between the wiper/washer switch and the washer pump motor using the wiring diagrams. CHECK the system is working properly.

R1: CHECK THE POWER SUPPLY OF THE HEADLIGHT WASHER RELAY

1 Enter the OFF position.

2 Disconnect Headlight Washer Relay - C1004.

3 Drive the ON position.

4 Measure the voltage between pin 2 of the C1004 headlight washer relay circuit 30-KA23 (red), from the BJB side, and "weight".

• Does the battery voltage register?

→ Yes

Go to R4

→ No

Go to R2

R2: CHECK FUSE F13

1 Enter the OFF position.

2CHECK Fuse F13 (BJB).

3 CHECK FUSE F13 (30 A)

• Is the fuse good?

→ Yes

Go to R3

→ No

Install new fuse F13 (30 A). If the fuse blows again, LOCATE and REPAIR the short circuit using the wiring diagrams. CHECK the system is working properly.

R3: CHECK POWER SUPPLY OF FUSE F13 (BJB)

1 Drive the ON position.

2 Measure voltage between fuse F13 (BJB) And "weight".

• Does the battery voltage register?

→ Yes

Go to R4

→ No

Check out BJB. If necessary, INSTALL the new element. CHECK the system is working properly.

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

1 Enter the OFF position.

2 Connect Fuse F13 (BJB).

3 Drive the ON position.

4 Set the light switch to "DIPPED HEADLIGHTS".

5 Measure the voltage between pin 5 C1004 headlight washer relay circuit 15S-KA22 (green/brown), from the BJB side, and "weight".

• Does the battery voltage register?

→ Yes

Go to R5

→ No

LOCATE and REPAIR the open circuit between the light switch and the headlight washer relay using the wiring diagrams. CHECK the system is working properly.

R5: CHECK GROUND CONNECTION OF HEADLIGHT WASHER RELAY

1 Set the light switch to "TURNED OFF".

2 Enter the OFF position.

3 Measure the resistance between C1004 pin 1 of the headlight washer relay, circuit 31-KA22 (black), from the BJB side, and "weight".

• Is the resistance less than 2 ohms?

→ Yes

Go to R6

→ No

LOCATE and REPAIR open circuit between headlight washer relay and "weight" G37 using the wiring diagrams. CHECK the system is working properly.

R6: CHECK CONTROL CIRCUIT (WASHING ON), TO THE HEADLIGHT WASHER RELAY

1 Enter the OFF position.

2 Operate the WINDSHIELD WASHER during measurement.

3 Measure the resistance between pin 3 of the C1004 headlight washer relay, circuit 32-KA22 (white/red) And "weight".

• Is the resistance less than 2 ohms?

→ Yes

Go to R7

→ No

LOCATE and REPAIR open circuit between C1004 headlamp washer relay pin 3 and S128 connection using the wiring diagrams. CHECK the system is working properly.

R7: INSPECT HEADLIGHT WASH PUMP.

1 Connect Headlight Washer Relay - C1004.

2 Disconnect the headlight washer pump motor - C745.

3 Drive the ON position.

4 Set the light switch to "DIPPED HEADLIGHTS".

5 Operate the WINDSHIELD WASHER during measurement.

6 Measure the voltage between C745 pin 1 of the headlight washer pump motor circuit 15S-KA21 (green/yellow), from the wiring side, and "weight".

• Does the battery voltage register?

→ Yes

Go to R8

→ No

LOCATE and REPAIR open circuit between C1004 headlamp washer relay pin 4 and headlamp washer pump motor using the electrical circuit diagrams. CHECK the system is working properly.

R8: CHECK HEADLIGHT WASH PUMP GROUND CONNECTION

1 Enter the OFF position.

2 Measure the resistance between pin 2 of C745 headlight washer pump motor circuit 31-KA21 (black), from the wiring side, and "weight".

• Is the resistance less than 2 ohms?

→ Yes

INSPECT headlight washer pump motor. If necessary, INSTALL the new element. CHECK the system is working properly.

→ No

LOCATE and REPAIR open circuit between headlight washer pump motor and "weight" G37 using the wiring diagrams. CHECK the system is working properly.