Nissan Frontier. Manual - part 772

AUTO LIGHT SYSTEM

EXL-13

< SYSTEM DESCRIPTION >

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Component Parts Location

INFOID:0000000009478435

1.

IPDM E/R

2.

BCM (view with lower instrument panel 
LH removed)

3.

Front door switch LH (Crew Cab) (RH 
similar)

ALLIA1235ZZ

EXL-14

< SYSTEM DESCRIPTION >

AUTO LIGHT SYSTEM

Component Description

INFOID:0000000009478436

4.

Rear door switch upper LH (King Cab) 
(RH similar)

5.

Front door switch LH (King Cab) (RH 
similiar)

6.

Rear door switch lower LH (King Cab) 

7.

Rear door switch LH (Crew Cab) (RH 
similar)

8.

Optical Sensor

9.

Combination switch

Part name

Description

BCM

BCM (Body Control Module) controls auto light operation accord-
ing to signals from optical sensor, lighting switch and ignition 
switch.

IPDM E/R

IPDM E/R (Intelligent Power Distribution Module Engine Room) 
operates parking, license plate, tail and headlamps according to 
CAN communication signals from BCM.

Combination switch (lighting and turn signal switch)

The lighting switch outputs lighting requests to the BCM.

Optical sensor

Optical sensor detects ambient brightness and converts light 
(lux) to voltage, then sends the optical sensor signal to BCM.

Door switches

Detects door open/closed status and forwards that status to the 
BCM.

FRONT FOG LAMP

EXL-15

< SYSTEM DESCRIPTION >

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FRONT FOG LAMP

System Diagram

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System Description

INFOID:0000000009478438

The front fog lamps are activated with the combination switch (lighting and turn signal switch). The combina-

tion switch (lighting and turn signal switch) signal to the BCM is monitored with the BCM combination switch

reading function. When the fog lamps are turned ON with the combination switch (lighting and turn signal

switch), the BCM sends a front fog lamp request signal via CAN communication lines to the IPDM E/R. The

IPDM E/R grounds the front fog lamp relay coil to activate the front fog lamps.

FRONT FOG LAMP OPERATION

When the combination switch (lighting and turn signal switch) is in front fog lamp ON position and also in 1ST

or 2ND position or AUTO (if equipped) position (headlamp is ON), the BCM detects FR FOG ON and the

HEAD LAMP1 or 2 ON. The BCM sends a front fog lamp request ON signal via the CAN communication lines

to the IPDM E/R. The IPDM E/R then turns ON the front fog lamp relay sending power to the front fog lamps.

Component Parts Location

INFOID:0000000009478439

Component Description

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AWLIA1719GB

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

AWLIA0732ZZ

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 front fog lamp relay upon request from the BCM.

Combination switch (lighting and turn signal switch)

Outputs lighting requests to the BCM.

EXL-16

< SYSTEM DESCRIPTION >

TURN SIGNAL AND HAZARD WARNING LAMPS

TURN SIGNAL AND HAZARD WARNING LAMPS

System Diagram

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System Description

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TURN SIGNAL OPERATION

When the combination switch (lighting and turn signal switch) is in LH or RH position with the ignition switch in

ON position, the BCM detects the TURN RH or TURN LH ON request. The BCM outputs the flasher signal to

the respective turn signal lamp. The BCM also sends a turn indicator signal ON request via the CAN commu-

nication lines to the combination meter. The combination meter then activates the appropriate turn signal indi-

cator and audible buzzer.

HAZARD LAMP OPERATION

When the hazard switch is in ON position, the BCM detects the hazard switch signal ON. The BCM outputs the

flasher signal (right and left). The BCM sends a hazard indicator signal ON request via the CAN communica-

tion lines to the combination meter. The combination meter then activates the hazard indicator and audible

buzzer.

Component Parts Location

INFOID:0000000009478443

Component Description

INFOID:0000000009478444

AWLIA1721GB

1.

BCM  M18, M20 (view with lower in-
strument panel LH removed)

2.

Combination switch (lighting and turn 
signal switch) M28

3.

Combination meter M24

4.

Hazard switch M55

AWLIA1683ZZ

Part name

Description

BCM

Controls turn signal and hazard flasher operation.