Diagnostic Procedure 1

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

DOOR SWITCH AND GLASS HATCH AJAR SWITCH CHECK

CHECK DOOR SWITCHES INPUT SIGNAL

With CONSULT-II

Check door switches ("DOOR SW-DR", "DOOR SW-AS", "DOOR SW-RL", "DOOR SW-RR", "BACK DOOR SW", "TRNK OPN MNTR") in DATA MONITOR mode with CONSULT-II. Refer to "DATA MONITOR ".

When glass hatch or doors are open:
DOOR SW-DR : ON

DOOR SW-AS : ON

DOOR SW-RL : ON

DOOR SW-RR : ON

BACK DOOR SW : ON

TRNK OPN MNTR : ON
When glass hatch or doors are closed:
DOOR SW-DR : OFF

DOOR SW-AS : OFF

DOOR SW-RL : OFF

DOOR SW-RR : OFF

BACK DOOR SW : OFF

TRNK OPN MNTR : OFF

Fig 1: Identifying CONSULT-II Display - DATA MONITOR

Without CONSULT-II

Check voltage between BCM connector M18 or M19 terminals 12, 13, 42, 43, 47, 48 and ground.

VOLTAGE CHART

Connector	Item	Terminals		Condition	Voltage (V) (Approx.)
Connector	Item	(+)	(-)	Condition	Voltage (V) (Approx.)
M19	Glass hatch ajar switch	42	Ground	Open ↓ Closed	0 --> 5
	Back door switch	43			0 ↓ Battery voltage
	Front door switch LH	47
	Rear door switch LH	48
M18	Front door switch RH	12
M18	Rear door switch RH	13

Fig 2: Checking Voltage Between BCM Connector M18 Or M19 Terminals 12, 13, 42, 43, 47, 48 And Ground

OK or NG

OK: Door switch circuit is OK.

NG: GO TO 2.

CHECK DOOR AND GLASS HATCH AJAR SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door switch, glass hatch ajar switch and BCM.
3. Check continuity between door switch connector (B) B8 (Front LH), B108 (Front RH), B18 (Rear LH), B116 (Rear RH) terminal 2 or back door switch connector (C) D502 terminal 3 or glass hatch ajar switch connector (D) D503 terminal 1 and BCM connector (A) M18, M19 terminals 12, 13, 42, 43, 47 and 48.
  1 - 42 : Continuity should exist.
  
  2 - 47 : Continuity should exist.
  
  2 - 12 : Continuity should exist.
  
  2 - 48 : Continuity should exist.
  
  2 - 13 : Continuity should exist.
  
  3 - 43 : Continuity should exist.
4. Check continuity between door switch connector (B) B8 (Front LH), B108 (Front RH), B18 (Rear LH), B116 (Rear RH) terminal 2 or back door switch connector (C) D502 terminal 3 or glass hatch ajar switch connector (D) D503 terminal 1 and ground.
  1 - Ground : Continuity should not exist.
  
  2 - Ground : Continuity should not exist.
  
  3 - Ground : Continuity should not exist.
  
  Fig 3: Checking Door And Glass Hatch Ajar Switch Circuit
OK or NG

OK: GO TO 3.

NG: Repair or replace harness.
CHECK DOOR AND GLASS HATCH AJAR SWITCHES

Check continuity between front/rear door switch connector (A) terminal 2 or back door switch connector (B) terminal 3 or glass hatch ajar switch connector (C) terminal 1 and ground.

CONTINUITY REFERENCE CHART

Switch	Terminals	Condition	Continuity
A: Door switch (front and rear)	2 - Ground	Open	Yes
A: Door switch (front and rear)	2 - Ground	Closed	No
B: Back door switch	1 - 3	Open	Yes
B: Back door switch	1 - 3	Closed	No
C: Glass hatch ajar switch	1 - Ground	Open	Yes
C: Glass hatch ajar switch	1 - Ground	Closed	No

OK or NG

OK: Check switch case ground condition (front and rear door and glass hatch) or ground circuit (back door).

NG: Replace door or glass hatch ajar switch.

Fig 4: Checking Door And Glass Hatch Ajar Switches