Nissan Pathfinder: System Description - Component Parts ++

Nissan Pathfinder (R53) 2022-2025 Service Manual / Driver Controls :: Exterior Lighting System / Led Headlamp :: System Description / Component Parts ++

Exterior Lighting System

Component Parts Location

A.	Instrument panel assembly	B.	Fuse, fusible link and relay box (view with fuse, fusible link and relay box removed)	C.	Fuse block (J/B) [view with fuse block (J/B)] removed] (with heated steering wheel shown, without heated steering wheel similar)
D.	Brake pedal assembly (view with brake pedal assembly removed)	E.	Left rear of Nissan Pathfinder vehicle (view with finisher removed)

No.	Component		Function
1.	Rear combination lamp RH (back door side)	Tail lamp	Refer to Bulb Specifications.
1.	Rear combination lamp RH (back door side)	Back-up lamp
2.	Rear combination lamp RH (body side)	Stop lamp	Refer to Bulb Specifications.
		Tail lamp
		Side marker
		Rear turn signal lamp
3.	Rear door lock assembly RH (door switch)		Transmits the door switch signal to the BCM. Refer to Door Lock Assembly for detailed component location.
4.	Front camera unit (if so equipped)		Front camera unit detects a Nissan Pathfinder vehicle ahead or when an oncoming vehicle appears to operate the high beam assist (HBA) system. Refer to Front Camera Unit for detailed component location.
5.	Rain sensor		Refer to Rain Sensor.
6.	Front door lock assembly RH (door switch)		Transmits the door switch signal to the BCM. Refer to Door Lock Assembly for detailed component location.
7.	Door mirror RH	Side turn signal lamp (if so equipped)	Refer to Bulb Specifications.
8.	Intelligent Key unit		Transmits the door lock/unlock request signal via CAN communication. Refer to Intelligent Key unit for detailed component location.
9.	ABS (Anti-locking Braking System) actuator and electric unit (control unit)		Transmits the Nissan Pathfinder vehicle speed signal and parking brake status signal via CAN communication. Refer to ABS Actuator and Electric Unit (Control Unit) for detailed component location.
10.	Front combination lamp RH	Headlamp (High beam)	Refer to Bulb Specifications.
		Headlamp (Low beam)
		Parking lamp/daytime running light
		Turn signal lamp
		Side marker lamp
		LED headlamp control module	Refer to LED Headlamp Control Module.
11.	Front fog lamp RH		Refer to Bulb Specifications.
12.	Front fog lamp LH		Refer to Bulb Specifications.
13.	ECM (Engine Control Module)		Transmits the engine status signal via CAN communication. Refer to ECM for detailed component location.
14.	TCM (Transmission Control Module)		Transmits the shift position signal via CAN communication. Refer to TCM for detailed component location.
15.	Front combination lamp LH	Headlamp (High beam)	Refer to Bulb Specifications.
		Headlamp (Low beam)
		Parking lamp/daytime running light
		Turn signal lamp
		Side marker lamp
		LED headlamp control module	Refer to LED Headlamp Control Module.
16.	IPDM E/R (Intelligent Power Distribution Module Engine Room)		IPDM E/R Smart FET (field-effect transistor) supplies voltage to the loads according to the request from the BCM via CAN communication. Refer to System Description.
17.	Air bag diagnosis sensor unit		Transmits the car crash information signal to the BCM via CAN communication for the auto hazard function. Refer to Air Bag Diagnosis Sensor Unit for detailed component location.
18.	ADAS (Advanced Driver Assistance System) control unit 2		Transmits the stop lamp request signal to the BCM via CAN communication for the AEB (automatic emergency braking) function. Refer to ADAS Control Unit 2 for detailed component location.
19.	BCM (Body Control Module)		Detects each switch condition by the combination switch reading function. Judges that the exterior lamps are turned ON according to the Nissan Pathfinder vehicle condition. Requests Smart FET ON to the IPDM E/R via CAN communication. Requests the following indicator lamps and warnings (information display/buzzer) ON to the combination meter via CAN communication: High beam indicator lamp High beam assist indicator lamp Position lamp indicator lamp Front fog lamp indicator lamp Light reminder warning (information display/buzzer) Judges the outside brightness from the optical sensor signal. Judges the ON/OFF timing of exterior lamps according to the Nissan Pathfinder vehicle condition. Judges the ON/OFF status of the exterior lamps according to the outside brightness and the Nissan Pathfinder vehicle condition. Blinks the turn signal lamp and hazard warning lamp according to the each switch condition. Requests the turn signal indicator lamp blink to the combination meter via CAN communication. Requests the turn signal operating sound ON to the combination meter via CAN communication. Refer to System Description.
20.	Door mirror LH	Side turn signal lamp (if so equipped)	Refer to Bulb Specifications.
21.	Front door lock assembly LH (door switch)		Transmits the door switch signal to the BCM. Refer to Door Lock Assembly for detailed component location.
22.	Rear door lock assembly LH (door switch)		Transmits the door switch signal to the BCM. Refer to Door Lock Assembly for detailed component location.
23.	Trailer receptacle (if so equipped)		Allows for the use of trailer lamps when a trailer is connected to the trailer receptacle.
24.	License plate lamp LH		Refer to Bulb Specifications.
25.	Rear combination lamp LH (body side)	Stop lamp	Refer to Bulb Specifications.
		Tail lamp
		Side marker
		Rear turn signal lamp
26.	Rear combination lamp RH (back door side)	Tail lamp	Refer to Bulb Specifications.
26.	Rear combination lamp RH (back door side)	Back-up lamp	Refer to Bulb Specifications.
27.	Back door lock assembly (ajar switch)		Transmits the ajar switch signal to the BCM to operate the autolight system. Refer to Back Door Lock Assembly for detailed component location.
28.	License plate lamp RH		Refer to Bulb Specifications.
29.	High-mounted stop lamp		Refer to Bulb Specifications.
30.	Combination meter		Turns the following indicator lamps and warnings (information display/buzzer) ON according to the request from the BCM via CAN communication: High beam indicator lamp High beam assist indicator lamp Front fog lamp indicator lamp Light reminder warning (information display/buzzer) Blinks the turn signal indicator lamp and outputs the turn signal operating sound with its integrated buzzer according to the request from the BCM via CAN communication. Refer to Combination Meter (full TFT meter) or Combination Meter (7 inch information display) for detailed component location.
31.	Combination switch (lighting and turn signal switch)		Transmits the status of the combination switch (lighting and turn signal switch) to the BCM. Refer to Lighting and Turn Signal Switch.
32.	Push-button ignition switch		Push-button ignition switch has push switch inside which detects that push-button ignition switch is placed ON, and then transmits ON/OFF signal to the Intelligent Key unit. The Intelligent Key unit transmits the push-button ignition switch signal to the BCM via CAN communication. The BCM changes the ignition status with the operation of the push-button ignition switch. The BCM maintains the ignition status while the push-button ignition switch is not operated. Refer to Push-Button Ignition Switch for detailed component location.
33.	Parking brake switch		Transmits the parking brake switch signal to the ABS actuator and electric unit (control unit). Refer to Parking Brake Switch for detailed component location.
34.	Hazard switch		Refer to Hazard Switch.
35.	Trailer turn relay LH (if so equipped)		Trailer turn relay LH is controlled by the BCM. Trailer turn relay LH supplies turn signal LH power supply to the trailer receptacle when the LH turn signal is ON.
36.	Trailer turn relay RH (if so equipped)		Trailer turn relay RH is controlled by the BCM. Trailer turn relay RH supplies turn signal RH power supply to the trailer receptacle when the RH turn signal is ON.
37.	Back-up lamp relay		Back-up lamp relay is controlled by the BCM. Back-up lamp relay supplies back-up lamp power supply when the Nissan Pathfinder vehicle is shifted to reverse.
38.	Brake pedal position switch		Refer to Brake Pedal Position Switch.
39.	Stop lamp switch		Refer to Stop Lamp Switch.
40.	Trailer tow relay-1 (if so equipped)		Trailer tow relay-1 is controlled by the BCM.
41.	Trailer back-up relay (if so equipped)		Trailer back-up relay is controlled by the BCM. Trailer back-up relay supplies back-up lamp power supply to the trailer receptacle when the Nissan Pathfinder vehicle is shifted to reverse.
42.	Trailer tow relay-2 (if so equipped)		Trailer tow relay-2 is controlled by the BCM.

LED Headlamp Control Module

LED headlamp control module integrated to the headlamp.

(Front combination lamp LH shown, RH similar)
When power is supplied from the battery and the LED headlamp control module receives the control signal from the IPDM E/R, the LED headlamp control module internally calculates the supplied power. The calculated power is distributed to multiple LEDs that consist of circuit boards and other components, illuminating each lamp.
When a malfunction is detected in the headlamp (LO) circuit, the LED headlamp control module outputs a headlamp warning signal to the IPDM E/R via LIN communication to inform the driver of the malfunction.
The IPDM E/R transmits the control signal and the request via LIN communication to the LED headlamp control module, and turns each lamp ON.
The LED headlamp control module transmits the headlamp warning signal to the IPDM E/R via LIN communication according to the headlamp (LO) circuit malfunction condition.

Rain Sensor

The rain sensor is installed on the windshield.
The rain sensor transmits the light sensor signal to the BCM via LIN communication according to the brightness of ambient light.

Lighting and Turn Signal Switch

Lighting and turn signal switch (1) is integrated with the combination switch.
Transmits the status of the lighting and turn signal switch to the BCM with the combination switch reading function.

Hazard Switch

Hazard switch is installed in the center ventilator finisher.
Transmits the ON/OFF status of the hazard switch to the BCM, flashing the hazard warning lamp.

Stop Lamp Switch

Stop lamp switch is installed on the brake pedal assembly.
The BCM detects the ON/OFF status of the stop lamp switch and illuminates the stop lamp.

Brake Pedal Position Switch

Brake pedal position switch is installed on the brake pedal assembly.
The BCM detects the ON/OFF status of the brake pedal position switch and illuminates the stop lamp.