Passenger Select Unlock Relay Circuit Check

WARNING: This page is about a different car, the 2008 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

CHECK PASSENGER SELECT UNLOCK RELAY CIRCUIT
NOTE: Passenger select unlock relay must remain connected during this step.
1. Turn ignition switch OFF.
2. Disconnect BCM and inoperative rear door lock actuator.
3. Check continuity between BCM connector (A) M20 terminal 65 and rear door lock actuator LH connector (B) D205 terminal 3 or rear door lock actuator RH connector (C) D305 Terminal 3.
  65 - 3: Continuity should exist.
4. Check continuity between BCM connector M20 terminals 65 and body ground.
  65 - Ground: Continuity should not exist.
Fig 1: Checking Continuity Between BCM Connector M20 Terminals 65 And Body Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: GO TO 4.

NG: GO TO 2.
CHECK PASSENGER SELECT UNLOCK RELAY INPUT
1. Disconnect passenger select unlock relay.
2. Check continuity between BCM connector (A) M20 terminal 65 and passenger select unlock relay connector (B) B22 terminal 3.
  65 - 3: Continuity should exist.
3. Check continuity between BCM connector (A) M20 terminals 65 and body ground.
  65 - Ground: Continuity should not exist.
Fig 2: Checking Continuity Between BCM Connector (A) M20 Terminals 65 And Body Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: GO TO 3.

NG: Repair or replace harness between BCM and relay.
CHECK PASSENGER SELECT UNLOCK RELAY OUTPUT
1. Disconnect inoperative rear door lock actuator.
2. Check continuity between passenger select unlock relay connector (A) B22 terminal 4 and rear door lock actuator LH connector (B) D205 or rear door lock actuator RH connector (C) D305 terminal 3.
  4 - 3: Continuity should exist.
3. Check continuity between passenger select unlock relay connector (A) B22 terminal 4 and ground.
  4 - Ground: Continuity should not exist.
Fig 3: Checking Continuity Between Passenger Select Unlock Relay Connector (A) B22 Terminal 4 And Ground
Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Replace passenger select unlock relay.

NG: Repair or replace harness between relay and actuator.

CHECK REAR DOOR LOCK ACTUATOR ASSEMBLY

Reconnect BCM.

Check voltage between rear door lock actuator connector LH (A) D205 or rear door lock actuator connector RH (B) D305 terminals 2 and 3.

REAR DOOR LOCK ACTUATOR CONNECTOR LH (A) D205 OR REAR DOOR LOCK ACTUATOR CONNECTOR RH (B) D305 TERMINALS 2 AND 3

Connector	Terminals		Condition	Voltage (V) (Approx.)
Connector	(+)	(-)	Condition	Voltage (V) (Approx.)
A: D205 (LH) B: D305 (RH)	3	2	Main power window and door lock/unlock switch is turned to LOCK	0 → Battery voltage

Fig 4: Checking Voltage Between Rear Door Lock Actuator Connector LH (A) D205 Or RH (B) D305 Terminals 2 And 3

Courtesy of NISSAN MOTOR CO., U.S.A.

Check voltage between rear door lock actuator connector LH (A) D205 or rear door lock actuator connector RH (B) D305 terminals 2 and 3.

REAR DOOR LOCK ACTUATOR CONNECTOR LH (A) D205 OR REAR DOOR LOCK ACTUATOR CONNECTOR RH (B) D305 TERMINALS 2 AND 3

Connector	Terminals		Condition	Voltage (V) (Approx.)
Connector	(+)	(-)	Condition	Voltage (V) (Approx.)
A: D205 (LH) B: D305 (RH)	2	3	Main power window and door lock/unlock switch is turned to UNLOCK	0 → Battery voltage

Fig 5: Checking Voltage Between Rear Door Lock Actuator Connector LH (A) D205 Or RH (B) D305 Terminals 2 And 3

Courtesy of NISSAN MOTOR CO., U.S.A.

OK or NG

OK: Replace rear door lock actuator. Refer to "REAR DOOR LOCK ".

NG: Repair or replace harness between actuator and splice.