Nissan Pathfinder (2008 year). Manual - part 645

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

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< ECU DIAGNOSIS >

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This operation status can be confirmed on the IPDM E/R “Data Monitor” that displays “BLOCK” for the item
“WIP PROT” while the wiper is stopped.

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< SYMPTOM DIAGNOSIS >

WIPER AND WASHER SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

WIPER AND WASHER SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000001712174

CAUTION:

Perform the self-diagnosis with CONSULT-III before performing the diagnosis by symptom. Perform
the diagnosis by DTC if DTC is detected.

Symptom

Probable malfunction location

Inspection item

Front wiper does not 
operate.

HI only

• Combination switch
• Harness between combination switch and BCM
• BCM

Combination switch 
Refer to 

BCS-53, "Symptom 

Table"

.

• IPDM E/R
• Harness between IPDM E/R and front wiper 

motor

• Front wiper motor

Front wiper motor (HI) circuit
Refer to 

WW-17, "Compo-

nent Function Check"

.

Front wiper request signal
• BCM
• IPDM E/R

IPDM E/R DATA MONITOR
"FR WIP REQ"

LO and INT

• Combination switch
• Harness between combination switch and BCM
• BCM

Combination switch
Refer to 

BCS-53, "Symptom 

Table"

.

• IPDM E/R
• Harness between IPDM E/R and front wiper 

motor

• Front wiper motor

Front wiper motor (LO) circuit
Refer to 

WW-15, "Compo-

nent Function Check"

.

Front wiper request signal
• BCM
• IPDM E/R

IPDM E/R DATA MONITOR
"FR WIP REQ"

INT only

• Combination switch
• Harness between combination switch and BCM
• BCM

Combination switch
Refer to 

BCS-53, "Symptom 

Table"

.

Front wiper request signal
• BCM
• IPDM E/R

IPDM E/R DATA MONITOR
"FR WIP REQ"

HI, LO, and INT

SYMPTOM DIAGNOSIS
“FRONT WIPER DOES NOT OPERATE”
Refer to 

WW-46, "Diagnosis Procedure"

.

WIPER AND WASHER SYSTEM SYMPTOMS

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< SYMPTOM DIAGNOSIS >

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Front wiper does not 
stop.

HI only

• Combination switch
• BCM

Combination switch
Refer to 

BCS-53, "Symptom 

Table"

.

Front wiper request signal
• BCM
• IPDM E/R

IPDM E/R DATA MONITOR
"FR WIP REQ"

IPDM E/R

—

LO only

• Combination switch
• BCM

Combination switch
Refer to 

BCS-53, "Symptom 

Table"

.

Front wiper request signal
• BCM
• IPDM E/R

IPDM E/R DATA MONITOR
"FR WIP REQ"

IPDM E/R

—

INT only

• Combination switch
• BCM

Combination switch
Refer to 

BCS-53, "Symptom 

Table"

.

Front wiper request signal
• BCM
• IPDM E/R

IPDM E/R DATA MONITOR
"FR WIP REQ"

Front wiper does not 
operate normally.

Intermittent adjustment 
cannot be performed.

• Combination switch
• Harness between combination switch and BCM
• BCM

Combination switch
Refer to 

BCS-53, "Symptom 

Table"

.

BCM

—

Intermittent control 
linked with vehicle 
speed cannot be per-
formed.

Check the vehicle speed detection wiper setting.
Refer to 

WW-11, "WIPER : CONSULT-III Function (BCM - WIPER)"

.

Wiper is not linked to 
the washer operation.

• Combination switch
• Harness between combination switch and BCM
• BCM

Combination switch
Refer to 

BCS-53, "Symptom 

Table"

.

BCM

—

Does not return to stop 
position (Repeatedly 
operates for 10 sec-
onds and then stops 
for 20 seconds. After 
that, it stops the opera-
tion).

• IPDM E/R
• Harness between IPDM E/R and front wiper 

motor

• Front wiper motor

Front wiper auto stop signal 
circuit
Refer to 

WW-19, "Compo-

nent Function Check"

.

Rear wiper does not 
operate.

ON only

• Combination switch
• Harness between combination switch and BCM
• BCM

Combination switch
Refer to 

BCS-53, "Symptom 

Table"

.

INT only

• Combination switch
• Harness between combination switch and BCM
• BCM

Combination switch
Refer to 

BCS-53, "Symptom 

Table"

.

ON and INT

• Combination switch
• Harness between combination switch and BCM
• BCM

Combination switch
Refer to 

BCS-53, "Symptom 

Table"

.

• BCM
• Harness between rear wiper motor and BCM
• Harness between rear wiper motor and ground
• Rear wiper motor
• Glass hatch ajar switch

Combination switch
Refer to 

WW-24, "Compo-

nent Function Check"

.

Symptom

Probable malfunction location

Inspection item

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< SYMPTOM DIAGNOSIS >

WIPER AND WASHER SYSTEM SYMPTOMS

Rear wiper does not 
stop.

ON only

• Combination switch
• BCM

Rear wiper motor circuit
Refer to 

WW-24, "Compo-

nent Function Check"

.

INT only

• Combination switch
• BCM

Combination switch
Refer to 

BCS-53, "Symptom 

Table"

.

Rear wiper does not 
operate normally.

Wiper is not linked to 
the washer operation.

• Combination switch
• Harness between rear wiper motor and BCM
• BCM

Combination switch
Refer to 

BCS-53, "Symptom 

Table"

.

BCM

—

Rear wiper does not 
return to the Stop posi-
tion (Stops after a five-
second operation).

• BCM
• Harness between rear wiper motor and BCM
• Rear wiper motor

Rear wiper auto stop signal 
circuit
Refer to 

WW-26, "Compo-

nent Function Check"

.

Rear wiper stops after 
operating for five sec-
onds when ignition 
switch is turned ON.

Symptom

Probable malfunction location

Inspection item

NORMAL OPERATING CONDITION

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NORMAL OPERATING CONDITION

Description

INFOID:0000000001712175

FRONT WIPER MOTOR PROTECTION FUNCTION

• IPDM E/R may stop the front wiper to protect the front wiper motor if any obstruction (operation resistance)

such as a large amount of snow is detected during the front wiper operation.

• At that time turn OFF the front wiper and remove the foreign object. Then wait for approximately 20 seconds

or more and reactivate the front wiper. The wiper will operate normally.

REAR WIPER MOTOR PROTECTION FUNCTION

• BCM may stop rear wiper to protect the rear wiper motor when the rear wiper is stopped for 5 seconds or

more due to a snowfall.

• Rear wiper operates normally one minute after the obstacles are removed with rear wiper OFF.

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< SYMPTOM DIAGNOSIS >

FRONT WIPER DOES NOT OPERATE

FRONT WIPER DOES NOT OPERATE

Description

INFOID:0000000001712176

The front wiper does not operate under any operation conditions.

Diagnosis Procedure

INFOID:0000000001712177

1.

 CHECK WIPER RELAY OPERATION

IPDM E/R AUTO ACTIVE TEST

1.

Start IPDM E/R auto active test. Refer to 

PCS-10, "Diagnosis Description"

.

2.

Check that the front wiper operates at the LO/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 operation normal?

YES

>> GO TO 5

NO

>> GO TO 2

2.

 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

>> Replace the fuse after repairing the applicable circuit.

NO

>> GO TO 3

3.

 CHECK FRONT WIPER MOTOR GROUND OPEN CIRCUIT 

1.

Disconnect front wiper motor.

2.

Check continuity between front wiper motor harness connector
and ground.

Does continuity exist?

YES

>> GO TO 4

NO

>> Repair or replace harness.

4.

 CHECK FRONT WIPER MOTOR OUTPUT VOLTAGE

CONSULT-III ACTIVE TEST

LO

: Front wiper LO operation

HI

: Front wiper HI operation

OFF

: Stop the front wiper.

Unit

Location

Fuse No.

Capacity

Front wiper motor

IPDM E/R

39

30 A

Front wiper motor

Ground

Continuity

Connector

Terminal

E23

2

Yes

WKIA3194E

FRONT WIPER DOES NOT OPERATE

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< SYMPTOM DIAGNOSIS >

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1.

Turn the ignition switch ON.

2.

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

3.

With operating the test item, check voltage between IPDM E/R
harness connector and ground.

Is the measurement value normal?

YES

>> Replace front wiper motor. Refer to 

WW-49, "Removal and Installation"

.

NO

>> Replace IPDM E/R. Refer to 

PCS-30, "Removal and Installation of IPDM E/R"

.

5.

 CHECK FRONT WIPER REQUEST SIGNAL INPUT

CONSULT-III DATA MONITOR

1.

Select "FR WIP REQ" of IPDM E/R data monitor item.

2.

Switch the front wiper switch to HI and LO.

3.

With operating the front wiper switch, check the status of "FR WIP REQ".

Is the status of item normal?

YES

>> Replace IPDM E/R. Refer to 

PCS-30, "Removal and Installation of IPDM E/R"

.

NO

>> GO TO 6

6.

 CHECK COMBINATION SWITCH

1.

Perform the inspection of the combination switch. Refer to 

BCS-53, "Symptom Table"

.

Is combination switch normal?

YES

>> Replace BCM. Refer to 

BCS-54, "Removal and Installation"

.

NO

>> Repair or replace the applicable parts.

Terminals

Test item

Voltage 

(Approx.)

(+)

(

−

)

IPDM E/R

Ground

FRONT WIP-

ER

Connector

Terminal

E121

32

LO

Battery 
voltage

OFF

0 V

35

HI

Battery 
voltage

OFF

0 V

WKIA1427E

Monitor item

Condition

Monitor 

status

FR WIP REQ

Front wiper switch HI

HI

ON

STOP

OFF

Front wiper switch LO

1LOW

ON

STOP

OFF

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< PRECAUTION >

PRECAUTION

PRECAUTION

PRECAUTION

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000001691120

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.