Door Switch Check

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.

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") in DATA MONITOR mode with CONSULT-II. Refer to "DATA MONITOR ".

When doors are open:
DOOR SW-DR : ON

DOOR SW-AS : ON

DOOR SW-RL : ON

DOOR SW-RR : ON

BACK DOOR SW : ON
When doors are closed:
DOOR SW-DR : OFF

DOOR SW-AS : OFF

DOOR SW-RL : OFF

DOOR SW-RR : OFF

BACK DOOR SW : OFF

Fig 1: Identifying CONSULT-II Display - DATA Monitor

Without CONSULT-II

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

VOLTAGE CHART

Connector	Item	Terminals		Condition	Voltage (V) (Approx.)
Connector	Item	(+)	(-)	Condition	Voltage (V) (Approx.)
M19	Back door switch	43	Ground	Open ↓ Closed	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, 43, 47, 48 And Ground

OK or NG

OK: Door switch circuit is OK.

NG: 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), B18 (Rear LH), B116 (Rear RH) terminal 2 or D502 (Back) terminal 3 and BCM connector M18, M19 terminals 12, 13, 43, 47 and 48.
  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 B8 (Front LH), B108 (Front RH), B18 (Rear LH), B116 (Rear RH) terminal 2 or D502 (Back) terminal 3 and ground.
  2 - Ground : Continuity should not exist.
  
  3 - Ground : Continuity should not exist.
  
  Fig 3: Checking Continuity Between Door Switch Connector B8
OK or NG

OK: GO TO 3.

NG: Repair or replace harness.
CHECK DOOR SWITCHES
FRONT AND REAR DOORS

Check continuity between front or rear door switch terminal 2 and exposed metal of switch while pressing and releasing switch.

When front or rear door switch is released : Continuity should exist.

When front or rear door switch is pushed : Continuity should not exist.

Fig 4: Checking Continuity Between Door Switch Terminal 2

BACK DOOR

Check continuity between back door switch terminals 3 and 1 while pressing and releasing switch.

When back door switch is released : Continuity should exist.

When back door switch is pushed : Continuity should not exist.

Fig 5: Checking Continuity Between Back Door Switch Terminals 3 And 1 While Pressing And Releasing Switch

OK or NG

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

NG: Replace door switch.