Nissan Altima L32. Manual - part 1608

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

WW-105

< ECU DIAGNOSIS >

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STARTER MOTOR PROTECTION FUNCTION

IPDM E/R turns OFF the starter control relay to protect the starter motor when the starter control relay remains

active for 90 seconds.

DTC Index

INFOID:0000000004505092

NOTE:

The details of TIME display are as follows.

• CRNT: The malfunctions that are detected now

• 1 - 39: The number is indicated when it is normal at present and a malfunction was detected in the past. It

increases like 0 

→ 1 → 2 · · · 38 → 39 after returning to the normal condition whenever IGN OFF → ON. It is

fixed to 39 until the self-diagnosis results are erased if it is over 39. It returns to 0 when a malfunction is

detected again in the process.

CONSULT-III display

Fail-safe

TIME

NOTE

Refer to

No DTC is detected.
further testing
may be required.

—

—

—

—

U1000: CAN COMM CIRCUIT

×

CRNT

1 – 39

PCS-20

B2098: IGN RELAY ON

×

CRNT

1 – 39

PCS-21

B2099: IGN RELAY OFF

—

CRNT

1 – 39

PCS-22

B2108: STRG LCK RELAY ON

—

CRNT

1 – 39

SEC-42

B2109: STRG LCK RELAY OFF

—

CRNT

1 – 39

SEC-43

B210A: STRG LCK STATE SW

—

CRNT

1 – 39

SEC-44

B210B: START CONT RLY ON

—

CRNT

1 – 39

SEC-48

B210C: START CONT RLY OFF

—

CRNT

1 – 39

SEC-49

B210D: STARTER RELAY ON

—

CRNT

1 – 39

SEC-50

B210E: STARTER RELAY OFF

—

CRNT

1 – 39

SEC-51

B210F: INTRLCK/PNP SW ON

—

CRNT

1 – 39

SEC-54

B2110: INTRLCK/PNP SW OFF

—

CRNT

1 – 39

SEC-59

WW-106

< SYMPTOM DIAGNOSIS >

FRONT WIPER AND WASHER SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

FRONT WIPER AND WASHER SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000004202208

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-10, "System 

Description"

.

• IPDM E/R
• Harness between IPDM E/R and wiper motor
• Front wiper motor

Front wiper motor (HI) circuit
Refer to 

WW-22, "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-10, "System 

Description"

.

• IPDM E/R
• Harness between IPDM E/R and wiper motor
• Front wiper motor

Front wiper motor (LO) circuit
Refer to 

WW-20, "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-10, "System 

Description"

.

Front wiper request signal
• BCM
• IPDM E/R

IPDM E/R
Data monitor "FR WIP REQ"

HI, LO, and INT

SYMPTOM DIAGNOSIS
Refer to 

WW-108, "Diagnosis Procedure"

.

FRONT 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-10, "System 

Description"

.

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-10, "System 

Description"

.

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-10, "System 

Description"

.

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-10, "System 

Diagram"

.

BCM

—

Intermittent control 
linked with vehicle 
speed cannot be per-
formed

Check the vehicle speed detection wiper setting.
Refer to 

BCS-26, "WIPER : CONSULT - III Function"

.

Wiper is not linked to 
the washer operation

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

Combination switch
Refer to 

BCS-10, "System 

Diagram"

.

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-24, "Compo-

nent Function Check"

.

Symptom

Probable malfunction location

Inspection item

WW-108

< SYMPTOM DIAGNOSIS >

FRONT WIPER DOES NOT OPERATE

FRONT WIPER DOES NOT OPERATE

Description

INFOID:0000000004202209

The front wiper does not operate under any operation conditions

Diagnosis Procedure

INFOID:0000000004202210

1.

 CHECK WIPER RELAY OPERATION

IPDM E/R AUTO ACTIVE TEST

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

PCS-14, "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 that front wiper LO/HI operation and OFF.

Does the front wiper operate?

YES

>> GO TO 5

NO

>> GO TO 2

2.

 CHECK FRONT WIPER MOTOR FUSE

1. Turn the ignition switch OFF.

2. Check that the front wiper motor fuse 30A (No. 55, located in the IPDM E/R) is not blown.
Is the fuse blown?

YES

>> Replace the fuse after repairing the affected circuit.

NO

>> GO TO 3

3.

 CHECK FRONT WIPER MOTOR (GND) OPEN CIRCUIT

1. Turn the ignition switch OFF.

2. Disconnect front wiper motor.

3. 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

1. Turn the ignition switch OFF.

2. Turn the ignition switch ON.

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

4. With operating the test item, check voltage between IPDM E/R

harness connector and ground.

Lo

: Front wiper LO operation

Hi

: Front wiper HI operation

Off

: Stop the front wiper.

Front wiper motor

Ground

Continuity

Connector

Terminal

E25

2

Yes

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ALLIA0923ZZ