Infiniti M35/M45 Y50. Manual - part 1156

FRONT WIPER AND WASHER SYSTEM

WW-29

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B

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4. 

CHECK CIRCUIT BETWEEN FRONT WIPER MOTOR AND FRONT WIPER REVERSE RELAY 

1.

Turn ignition switch OFF.

2.

Disconnect front wiper motor connector.

3.

Remove front wiper reverse relay.

4.

Check continuity between front wiper motor harness connector
(A) and front wiper reverse relay harness connector (B).

OK or NG

OK

>> GO TO 5.

NG

>> Repair harness or connector.

5. 

CHECK FRONT WIPER REVERSE RELAY

1.

Check continuity between front wiper reverse relay terminals.

2.

Check continuity between front wiper reverse relay terminals.

OK or NG

OK

>> GO TO 6.

NG

>> Replace front wiper reverse relay.

A

B

Continuity

Connector

Terminal

Connector

Terminal

E27

1

E33

3

Yes

SKIB4659E

Front wiper reverse relay terminals

Continuity

3

4

Yes

SKIB4660E

Front wiper reverse 

relay terminals

Condition

Continuity

3

5

Applying battery voltage to between 
terminals 1 and 2

Yes

No battery voltage

No

SKIB4671E

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FRONT WIPER AND WASHER SYSTEM

6. 

CHECK FRONT WIPER CIRCUIT

1.

Disconnect IPDM E/R connector.

2.

Check continuity between IPDM E/R harness connector (A) and
front wiper motor harness connector (B).

3.

Check continuity between IPDM E/R harness connector (A) and
front wiper reverse relay harness connector (B).

4.

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

OK or NG

OK

>> GO TO 7.

NG

>> Repair harness or connector.

A

B

Continuity

Connector

Terminal

Connector

Terminal

E7

23

E27

3

Yes

31

2

SKIB4662E

A

B

Continuity

Connector

Terminal

Connector

Terminal

E7

19

E33

5

Yes

SKIB4676E

IPDM E/R 
connector

Terminal

Ground

Continuity

E7

19

No

23

SKIB4677E

FRONT WIPER AND WASHER SYSTEM

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7. 

CHECK IPDM E/R

With CONSULT-II

1.

Connect IPDM E/R connector and front wiper motor connector.

2.

Install front wiper reverse relay.

3.

Select “IPDM E/R” on CONSULT-II. Select “ACTIVE TEST” on “SELECT DIAG MODE” screen.

4.

Select “FRONT WIPER” on “SELECT TEST ITEM” screen.

5.

Touch “LO” or “HI” screen.

6.

Check voltage between IPDM E/R harness connector and
ground while front wiper (HI, LO) is operating.

Without CONSULT-II

1.

Connect IPDM E/R connector and front wiper motor connector.

2.

Install front wiper reverse relay.

3.

Start up auto active test. Refer to 

PG-23, "Auto Active Test"

 .

4.

Check voltage between IPDM E/R harness connector and ground while front wiper (HI, LO) is operating.

OK or NG

OK

>> Replace front wiper motor. Refer to 

WW-44, "Disassembly and Assembly of Front Wiper Drive

Assembly"

 .

NG

>> Replace IPDM E/R. Refer to 

PG-31, "Removal and Installation of IPDM E/R"

 .

Front Wiper Does Not Return to Stop Position (After Front Wiper Operate for 10 
Seconds, They Stop for 20 Seconds, and After Repeating the Operations Five 
Times, They Become Inoperative)

NKS003WO

CAUTION:

●

When auto stop signal has not varied for 10 seconds or longer while IPDM E/R is operating front
wipers, IPDM E/R considers that front wipers are locked, and stops wiper output. That causes this
symptom.

●

This status can be checked by “DATA MONITOR” of “IPDM E/R” on which “WIPER PROTECTION”
item shows “BLOCK”.

Terminal

Condition

Voltage 

(Approx.)

(+)

(-)

IPDM E/R 
connector

Terminal

E7

19

Ground

Stopped

Battery voltage

HI operation

23

Stopped

0 V

LO operation

Battery voltage

Terminal

Condition

Voltage 

(Approx.)

(+)

(-)

IPDM E/R
connector

Terminal

E7

19

Ground

Stopped

Battery voltage

HI operation

23

Stopped

0 V

LO operation

Battery voltage

SKIB4663E

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FRONT WIPER AND WASHER SYSTEM

1. 

CHECK FRONT WIPER STOP SIGNAL

With CONSULT-II

Select “IPDM E/R” on CONSULT-II. With “DATA MONITOR”, make
sure that “WIP AUTO STOP” turns “ACT P” - “STOP P” linked with
wiper operation. 

Without CONSULT-II

GO TO 2.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-31, "Removal and

Installation of IPDM E/R"

 .

NG

>> GO TO 2.

2. 

CHECK IPDM E/R

Check voltage between IPDM E/R harness connector and ground
while front wiper motor is stopped and while front wiper (HI, LO) is
operating.

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-31, "Removal and Installation of IPDM E/R"

 .

NG

>> GO TO 3.

3. 

CHECK FRONT WIPER AUTO STOP CIRCUIT

1.

Turn ignition switch OFF.

2.

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

3.

Check continuity between IPDM E/R harness connector (A) and
front wiper motor harness connector (B).

4.

Check continuity between IPDM E/R harness connector (A) and
ground.

OK or NG

OK

>> Replace front wiper motor. Refer to 

WW-44, "Disassembly and Assembly of Front Wiper Drive

Assembly"

 .

NG

>> Repair harness or connector.

PKIA7614E

Terminal

Condition

Voltage 

(Approx.)

(+)

(-)

IPDM E/R 
connector

Terminal 

E7

32

Ground

Wiper stopped

Battery voltage

Wiper operating

0 V

SKIB4665E

A

B

Continuity

Connector

Terminal Connector

Terminal 

E7

32

E27

5

Yes

A

Ground

Continuity

Connector

Terminal 

E7

32

No

SKIB4664E