Nissan Pathfinder (2012 year). Manual - part 361

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< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Work Flow

INFOID:0000000007355103

OVERALL SEQUENCE

AWLIA1837GB

August 2012

2012 Pathfinder

DIAGNOSIS AND REPAIR WORKFLOW

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< BASIC INSPECTION >

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DETAILED FLOW

1.

INTERVIEW FOR MALFUNCTION

Find out what the customer's concerns are.

>> GO TO 2

2.

SYMPTOM CHECK

Verify the symptom from the customer's information.

>> GO TO 3

3.

BASIC INSPECTION

Check the operation of each part. Check that any concerns occur other than those mentioned in the customer

interview.

>> GO TO 4

4.

SELF-DIAGNOSIS WITH CONSULT

Perform the self diagnosis with CONSULT. Check that any DTC is detected.
Is any DTC detected?

YES

>> GO TO 5

NO

>> GO TO 6

5.

TROUBLE DIAGNOSIS BY DTC

Perform the trouble diagnosis for the detected DTC. Specify the malfunctioning part.

>> GO TO 9

6.

FAIL-SAFE ACTIVATION CHECK

Determine if the customer's concern is related to fail-safe activation.
Does the fail-safe activate?

YES

>> GO TO 7

NO

>> GO TO 8

7.

SYSTEM DIAGNOSIS

Perform the system diagnosis for the system in which the fail-safe activates. Specify the malfunctioning part.

>> GO TO 9

8.

SYMPTOM DIAGNOSIS

Perform the symptom diagnosis. Specify the malfunctioning part.

>> GO TO 9

9.

MALFUNCTION PART REPAIR

Repair or replace the malfunctioning part.

>> GO TO 10

10.

REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT)

Perform the self diagnosis with CONSULT. Verify that no DTCs are detected. Erase all DTCs detected prior to

the repair. Verify that DTC is not detected again.
Is any DTC detected?

August 2012

2012 Pathfinder

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< BASIC INSPECTION >

DIAGNOSIS AND REPAIR WORKFLOW

YES

>> GO TO 5

NO

>> GO TO 11

11.

REPAIR CHECK (OPERATION CHECK)

Check the operation of each part.
Does it operate normally?

YES

>> Inspection End.

NO

>> GO TO 3

August 2012

2012 Pathfinder

HEADLAMP

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< SYSTEM DESCRIPTION >

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SYSTEM DESCRIPTION

HEADLAMP

System Diagram

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System Description

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Control of the headlamp system operation is dependent upon the position of the combination switch (lighting

and turn signal switch). When the lighting switch is placed in the 2nd position, the BCM (body control module)

receives input requesting the headlamps and park lamps to illuminate. This input is communicated to the

IPDM E/R (intelligent power distribution module engine room) via the CAN communication lines. The CPU

(central processing unit) of the IPDM E/R controls the headlamp high and headlamp low relay coils. When

energized, these relays direct power to the respective headlamps, which then illuminate.

HIGH BEAM OPERATION/FLASH-TO-PASS OPERATION

With the lighting switch in the 2ND position and placed in HIGH position, the BCM receives input requesting

the headlamp high beams to illuminate. The flash to pass feature can be used any time and also sends a sig-

nal to the BCM. This input is communicated to the IPDM E/R via the CAN communication lines. The CPU of

the combination meter controls the ON/OFF status off the HIGH BEAM indicator. The CPU of the IPDM E/R

controls the headlamp high relay coil which supplies power to the high beam headlamps.

The combination meter receives a high beam request signal (ON) via the CAN communication lines and turns

the high beam indicator lamp ON.

Component Parts Location

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AWLIA1909GB

WKIA4957E

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2012 Pathfinder

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< SYSTEM DESCRIPTION >

HEADLAMP

Component Description

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1.

IPDM E/R E122, E123, E124

2.

BCM M18, M20 (view with lower instru-
ment panel LH removed)

3.

Combination switch (lighting and turn 
signal switch) M28

4.

Combination meter M24

Part name

Description

BCM

• Receives lighting switch requests via BCM combination switch 

reading function.

• Sends headlamp high/low request signal to the IPDM E/R.

IPDM E/R

Activates the headlamp high and headlamp low relays upon re-
quest from the BCM.

Combination switch (lighting and turn signal switch)

Outputs lighting requests to the BCM.

August 2012

2012 Pathfinder

DAYTIME RUNNING LIGHT SYSTEM

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< SYSTEM DESCRIPTION >

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DAYTIME RUNNING LIGHT SYSTEM

System Diagram

INFOID:0000000007355108

System Description

INFOID:0000000007355109

The headlamp system for Canada vehicles is equipped with a daytime light control that activates the high

beam headlamps at approximately half illumination whenever the engine is operating. If the parking brake is

depressed before the engine is started the daytime lights will not be illuminated. The daytime lights will illumi-

nate once the parking brake is released. Thereafter, the daytime lights will continue to operate when the park-

ing brake is depressed.

OPERATION 

The BCM monitors inputs from the parking brake switch and the combination switch (lighting and turn signal

switch) to determine when to activate the daytime light system.  The BCM sends a daytime light request to the

IPDM E/R via the CAN communication lines.  The IPDM E/R grounds the daytime light relay 1 which in turn,

provides power to the ground side of the LH high beam lamp.  Power flows backward through the LH high

beam lamp to the IPDM E/R, through the high beam fuses, through the RH high beam lamp circuit to the RH

high beam lamp and on to ground.  The high beam lamps are wired in series which causes them to illuminate

at a reduced intensity. 

AWLIA1751GB

August 2012

2012 Pathfinder

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< SYSTEM DESCRIPTION >

DAYTIME RUNNING LIGHT SYSTEM

Component Parts Location

INFOID:0000000007355110

Component Description

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1.

IPDM E/R E119, E122, E123, E124

2.

Parking brake switch E53

3.

BCM M18, M20 (view with lower instru-
ment panel LH removed)

4.

ECM E16 (view with ECM cover re-
moved)

5.

Generator E205, E209

6.

Daytime light relay 1, E103

7.

Daytime light relay 2, E104

8.

Combination switch (lighting and turn 
signal switch) M28

9.

Combination meter M24

WKIA4958E

Part name

Description

BCM

• Receives combination switch (lighting and turn signal switch) 

inputs via BCM combination switch reading function.

• Receives parking brake depressed input from the parking 

brake switch.

• Receives engine running status from the ECM via CAN com-

munication. 

IPDM E/R

Receives daytime light request from the BCM and activates the 
daytime light relay.

Combination switch (lighting and turn signal switch)

Outputs lighting requests to the BCM.

August 2012

2012 Pathfinder

DAYTIME RUNNING LIGHT SYSTEM

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< SYSTEM DESCRIPTION >

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Park brake switch

Outputs parking brake status to the combination meter which for-
wards that information to the BCM via CAN communication.

ECM

Outputs engine running status to the BCM.

August 2012

2012 Pathfinder