Infiniti QX56 (JA60). Manual - part 1038

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< COMPONENT DIAGNOSIS >

REAR WIPER MOTOR CIRCUIT

REAR WIPER MOTOR CIRCUIT

Component Function Check

INFOID:0000000005146781

1.

 CHECK REAR WIPER ON OPERATION

CONSULT-III ACTIVE TEST

1. Select "RR WIPER" of BCM active test item.

2. While operating the test item, check rear wiper operation.

Is rear wiper operation normal?

YES

>> Rear wiper motor circuit is normal.

NO

>> Refer to 

WW-28, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005146782

Regarding Wiring Diagram information, refer to 

WW-35, "Wiring Diagram"

.

1.

 CHECK REAR WIPER MOTOR OUTPUT VOLTAGE

CONSULT-III ACTIVE TEST

1. Turn the ignition switch OFF.

2. Disconnect rear wiper motor.

3. Turn the ignition switch ON.

4. Select "RR WIPER" of BCM active test item.

5. While operating the test item, check voltage between BCM har-

ness connector and ground.

Is the measurement value normal?

YES

>> GO TO 2

NO

>> GO TO 3

2.

 CHECK REAR WIPER MOTOR GROUND CIRCUIT

1. Turn the ignition switch OFF.

2. Check continuity between rear wiper motor harness connector

and ground.

Does continuity exist?

YES

>> Replace rear wiper motor. Refer to 

WW-86, "Rear Wiper

Motor"

.

NO

>> Repair or replace harness.

ON

: Rear wiper ON operation

OFF

: Stop the rear wiper.

Terminals

Test item

Voltage

(Approx.)

(+)

(

−)

BCM

REAR WIPER

Connector

Terminal

M19

54

Ground

ON

Battery voltage

55

OFF

0V

WKIA1417E

Rear wiper motor

Ground

Continuity

Connector

Terminal

D704

3

Yes

5

WKIA1416E

REAR WIPER MOTOR CIRCUIT

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< COMPONENT DIAGNOSIS >

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G

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A

B

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N

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3.

 CHECK GLASS HATCH AJAR SWITCH CIRCUIT

1. Disconnect BCM harness M19.

2. Turn ignition switch OFF.

3. Make sure hatch glass is closed

4. Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Repair harness if shorted. If not, refer to 

DLK-129,

"Diagnosis Procedure"

.

NO

>> GO TO 4

4.

 CHECK REAR WIPER MOTOR OPEN CIRCUIT

1. Check continuity between BCM harness connector and rear

wiper motor harness connector.

Does continuity exist?

YES

>> GO TO 5

NO

>> Repair or replace harness.

5.

 CHECK REAR WIPER MOTOR SHORT CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Repair or replace harness.

NO

>> Replace BCM. Refer to 

BCS-59, "Removal and Installa-

tion"

.

BCM

Ground

Continuity

Connector

Terminal

M19

42

No

WKIA1414E

BCM

Rear wiper motor

Continuity

Connector

Terminal

Connector

Terminal

M19

54

D704

6

Yes

55

4

WKIA1413E

BCM

Ground

Continuity

Connector

Terminal

M19

54

No

55

ALLIA0449ZZ

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< COMPONENT DIAGNOSIS >

REAR WIPER AUTO STOP SIGNAL CIRCUIT

REAR WIPER AUTO STOP SIGNAL CIRCUIT

Component Function Check

INFOID:0000000005146783

1.

 CHECK REAR WIPER (AUTO STOP) OPERATION

CONSULT-III DATA MONITOR

1. Select "WIPER" of BCM data monitor item.

2. Operate the rear wiper.

3. Check that "RR WIPER STOP" changes to "ON" and "OFF" linked with the wiper operation.

Is the status of item normal?

YES

>> Rear wiper auto stop signal circuit is normal.

NO

>> Refer to 

WW-30, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005146784

Regarding Wiring Diagram information, refer to 

WW-35, "Wiring Diagram"

.

1.

 CHECK REAR WIPER MOTOR AUTO STOP CIRCUITS

1. Turn ignition switch OFF.

2. Disconnect BCM and rear wiper motor.

3. Check continuity between BCM harness connector terminals

and rear wiper motor harness connector terminals.

Is inspection result normal?

YES

>> GO TO 2

NO

>> Repair or replace harness.

2.

 CHECK AUTO STOP CIRCUITS FOR SHORT TO GROUND

Check continuity between BCM harness connector terminals and

ground.

Is inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-59, "Removal and Installa-

tion"

.

NO

>> Repair or replace harness.

Monitor item

Condition

Monitor status

RR WIPER STOP

Rear wiper motor

Stop position

ON

Except stop position

OFF

BCM

Rear wiper motor

Continuity

Connector

Terminal

Connector

Terminal

M18

26

D704

1

Yes

M19

44

2

WKIA1415E

BCM

Ground

Continuity

Connector

Terminal

M18

26

No

M19

44

WKIA1421E

FRONT WIPER AND WASHER SYSTEM

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< COMPONENT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

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A

B

WW

N

O

P

FRONT WIPER AND WASHER SYSTEM

Wiring Diagram

INFOID:0000000005146785

ABLWA0518GB