Nissan Frontier. Manual - part 773

TURN SIGNAL AND HAZARD WARNING LAMPS

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Combination switch (lighting and turn signal switch) 

Lighting and turn signal switch requests are output to the BCM.

Hazard switch

Hazard flasher request signal is output to the BCM.

Combination meter

Outputs turn and hazard indicator as requested by the BCM.

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< SYSTEM DESCRIPTION >

PARKING, LICENSE PLATE AND TAIL LAMPS

PARKING, LICENSE PLATE AND TAIL LAMPS

System Diagram

INFOID:0000000009478445

System Description

INFOID:0000000009478446

PARKING, LICENCE PLATE AND TAIL LAMPS OPERATION

When the combination switch (lighting and turn signal switch) is in 1ST position, BCM detects the LIGHTING

SWITCH 1ST POSITION ON. The BCM sends a parking light ON request via the CAN communication lines to

the IPDM E/R. The IPDM E/R then activates the tail lamp relay which sends power to the parking and instru-

ment illumination circuits. 

EXTERIOR LAMP BATTERY SAVER CONTROL

With the combination switch (lighting and turn signal switch) in the 2ND position and the ignition switch is

turned from ON or ACC to OFF, the battery saver feature is activated.

Under this condition, the headlamps remain illuminated for 5 minutes unless the combination switch (lighting

and turn signal switch) position is changed. If the combination switch (lighting and turn signal switch) position

is changed, then the headlamps are turned off. 

This setting can be changed by CONSULT. Refer to 

BCS-18, "HEADLAMP : CONSULT Function (BCM -

HEADLAMP)"

.

Component Parts Location

INFOID:0000000009478447

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1.

IPDM E/R E121, E122, E123, E124

2.

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

3.

Combination switch (lighting and turn 
signal switch) M28

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PARKING, LICENSE PLATE AND TAIL LAMPS

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Component Description

INFOID:0000000009478448

Part name

Description

BCM

• Receives combination switch (lighting and turn signal switch) 

requests via BCM combination switch reading function.

• Sends parking light request signal to the IPDM E/R.

IPDM E/R

Activates the tail lamp relay upon request of the BCM.

Combination switch (lighting and turn signal switch)

Outputs lighting requests to the BCM.

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< SYSTEM DESCRIPTION >

TRAILER TOW

TRAILER TOW

System Diagram

INFOID:0000000009478449

System Description

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TRAILER TAIL LAMP OPERATION

The trailer tail lamps are controlled by the trailer tow relay 1 that is located on the front of the IPDM E/R. With

the combination switch (lighting and turn signal switch) in the 1st position, the BCM detects the LIGHTING

SWITCH 1ST POSITION ON. The BCM sends a parking light ON request via the CAN communication lines to

the IPDM E/R. The IPDM E/R then activates the tail lamp relay which activates the trailer tow relay 1 and

sends power to the trailer connector.

TRAILER TURN SIGNAL LAMP OPERATION

The trailer turn signal lamps are controlled by the BCM. When the combination switch (lighting and turn signal

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

switch) sends a signal to the BCM. The BCM detects the TURN RH or TURN LH ON request. The BCM sends

a control signal to the respective trailer turn relay which sends power to the trailer connector.

TRAILER HAZARD LAMP OPERATION

The trailer hazard lamps are controlled by the BCM. When the hazard switch is pressed, the BCM detects the

the hazard ON request. The BCM then sends a control signal to both trailer turn relays which sends power to

the trailer connector.

TRAILER BRAKE LAMP OPERATION

The trailer brake lamps operate when the brake pedal is pressed sending the stop lamp switch signal to the-

trailer connector.

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