Infiniti QX56 (JA60). Manual - part 1036

WW-20

< COMPONENT DIAGNOSIS >

FRONT WIPER MOTOR LO CIRCUIT

1. Turn the ignition switch ON.

2. Select "FRONT WIPER" of IPDM E/R active test item.

3. While operating the test item, check voltage between IPDM E/R

harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 4

NO

>> Replace IPDM E/R. Refer to 

PCS-35, "Removal and Installation of IPDM E/R"

.

4.

 CHECK FRONT WIPER MOTOR (LO) OPEN CIRCUIT

1. Turn the ignition switch OFF.

2. Disconnect IPDM E/R and front wiper motor.

3. Check continuity between IPDM E/R harness connector and

front wiper motor harness connector.

Does continuity exist?

YES

>> Replace front wiper motor. Refer to 

WW-80, "Wiper

Motor and Linkage"

.

NO

>> Repair or replace harness.

Terminals

Test item

Voltage 

(Approx.)

(+)

(-)

IPDM E/R

Ground

FRONT WIPER

Connector

Terminal

E121

32

LO

Battery 
voltage

OFF

0V

WKIA3759E

IPDM E/R

Front wiper motor

Continuity

Connector

Terminal

Connector

Terminal

E121

32

E23

3

Yes

WKIA2830E

FRONT WIPER MOTOR HI CIRCUIT

WW-21

< COMPONENT DIAGNOSIS >

C

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F

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A

B

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FRONT WIPER MOTOR HI CIRCUIT

Component Function Check

INFOID:0000000005146774

1.

 CHECK FRONT WIPER HI OPERATION

IPDM E/R AUTO ACTIVE TEST

1. Start IPDM E/R auto active test. Refer to 

PCS-12, "Diagnosis Description"

.

2. Check that the front wiper operates at the HI operation.

CONSULT-III ACTIVE TEST

1. Select "FRONT WIPER" of IPDM E/R active test item.

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

Is front wiper (HI) operation normal?

YES

>> Front wiper motor HI circuit is normal.

NO

>> Refer to 

WW-21, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005146775

Regarding Wiring Diagram information, refer to 

WW-31, "Wiring Diagram"

.

1.

 CHECK FRONT WIPER MOTOR FUSE

1. Turn the ignition switch OFF.

2. Check that the following fuse is not blown.

Is the fuse blown?

YES

>> GO TO 2

NO

>> GO TO 3

2.

 CHECK FRONT WIPER MOTOR (HI) SHORT CIRCUIT

1. Disconnect IPDM E/R and front wiper motor.

2. Check continuity between IPDM E/R harness connector and

ground.

Does continuity exist?

YES

>> Repair or replace harness.

NO

>> Replace the fuse. (Replace IPDM E/R if the fuse is

blown again.)

3.

 CHECK FRONT WIPER MOTOR (HI) OUTPUT VOLTAGE

CONSULT-III ACTIVE TEST

HI

: Front wiper (HI) operation

OFF

: Stop the front wiper.

Unit

Location

Fuse No.

Capacity

Front wiper motor

IPDM E/R

39

30 A

IPDM E/R

Ground

Continuity

Connector

Terminal

E121

35

No

ALLIA0448ZZ

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< COMPONENT DIAGNOSIS >

FRONT WIPER MOTOR HI CIRCUIT

1. Turn the ignition switch ON.

2. Select "FRONT WIPER" of IPDM E/R active test item.

3. While operating the test item, check voltage between IPDM E/R

harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 4

NO

>> Replace IPDM E/R. Refer to 

PCS-35, "Removal and Installation of IPDM E/R"

.

4.

 CHECK FRONT WIPER MOTOR (HI) OPEN CIRCUIT

1. Turn the ignition switch OFF.

2. Disconnect IPDM E/R and front wiper motor.

3. Check continuity between IPDM E/R harness connector and

front wiper motor harness connector.

Does continuity exist?

YES

>> Replace front wiper motor. Refer to 

WW-80, "Wiper

Motor and Linkage"

.

NO

>> Repair or replace harness.

Terminals

Test item

Voltage 

(Approx.)

(+)

(-)

IPDM E/R

Ground

FRONT WIPER

Connector

Terminal

E121

35

HI

Battery 
voltage

OFF

0 V

WKIA3760E

IPDM E/R

Front wiper motor

Continuity

Connector

Terminal

Connector

Terminal

E121

35

E23

2

Yes

WKIA2852E

FRONT WIPER AUTO STOP SIGNAL CIRCUIT

WW-23

< COMPONENT DIAGNOSIS >

C

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E

F

G

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FRONT WIPER AUTO STOP SIGNAL CIRCUIT

Component Function Check

INFOID:0000000005146776

1.

 CHECK FRONT WIPER (AUTO STOP) SIGNAL CHECK

CONSULT-III DATA MONITOR

1. Select "FR WIPER STOP" of IPDM E/R data monitor item.

2. Operate the front wiper.

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

Is the status of item normal?

YES

>> Front wiper auto stop signal circuit is normal.

NO

>> Refer to 

WW-23, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005146777

Regarding Wiring Diagram information, refer to 

WW-31, "Wiring Diagram"

.

1.

 CHECK FRONT WIPER MOTOR (AUTO STOP) OUTPUT VOLTAGE

1. Turn the ignition switch ON.

2. Check voltage between IPDM E/R harness connector and

ground.

Is the measurement value normal?

YES

>> GO TO 3

NO

>> GO TO 2

2.

 CHECK FRONT WIPER MOTOR (AUTO STOP) SHORT CIRCUIT

1. Turn the ignition switch OFF.

2. Disconnect IPDM E/R and front wiper motor.

3. Check continuity between IPDM E/R harness connector and

ground.

Does continuity exist?

YES

>> Repair or replace harness.

NO

>> Replace IPDM E/R. Refer to 

PCS-35, "Removal and Installation of IPDM E/R"

.

3.

 CHECK FRONT WIPER MOTOR (AUTO STOP) CIRCUIT CONTINUITY

Monitor item

Condition

Monitor status

FR WIPER STOP

Front wiper motor

Stop position

ON

Except stop position

OFF

Terminals

Voltage 

(Approx.)

(+)

(-)

IPDM E/R

Ground

Connector

Terminal

E122

43

Battery voltage

WKIA1431E

IPDM E/R

Ground

Continuity

Connector

Terminal

E122

43

No

WKIA1429E