Diagnosis Procedure

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM ".

CHECK DOOR SWITCHES INPUT SIGNAL

With CONSULT

Check door switches ("DOOR SW-DR", "DOOR SW-AS") in DATA MONITOR mode with CONSULT. Refer to "DOOR LOCK: CONSULT FUNCTION (BCM - DOOR LOCK) ".

When any doors are open:
DOOR SW-DR: ON

DOOR SW-AS: ON
When any doors are closed:

DOOR SW-DR: OFF

DOOR SW-AS: OFF

Without CONSULT

Check voltage between BCM connector M18 or M19 terminals 12, 47 and ground.

Connector	Item	Terminals		Condition	Voltage (V) (Approx.)
Connector	Item	(+)	(-)	Condition	Voltage (V) (Approx.)
M19	Front door switch LH	47	Ground	Open ↓ Closed	0 ↓ Battery voltage
M18	Front door switch RH	12	Ground	Open ↓ Closed	0 ↓ Battery voltage

Is the inspection result normal?

YES: Door switch circuit is OK.

NO: GO TO 2

CHECK DOOR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door switch and BCM.
3. Check continuity between door switch connector B8 (Front LH), B108 (Front RH) terminal 2 and BCM connector M18, M19 terminals 12, 47.
  2 - 47: Continuity should exist
  
  2 - 12: Continuity should exist
4. Check continuity between door switch connector B8 (Front LH), B108 (Front RH) terminal 2 and ground.
  2 - Ground: Continuity should not exist
  
  Is the inspection result normal?
  
  YES: GO TO 3
  
  NO: Repair or replace harness.

CHECK DOOR SWITCHES

Check continuity between door switch terminals.

	Terminal	Condition	Continuity
Door switch	2 - Ground	Open	Yes
Door switch	2 - Ground	Closed	No

Is the inspection result normal?

YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

NO: Replace door switch.