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Home >> Nissan-Datsun >> 2003 >> Sentra Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 2234 (Door & Lock (With Intelligent Key System)) >> DTC/Circuit Diagnosis >> Passenger Select Unlock Relay >> Diagnosis Procedure

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 - WITH INTELLIGENT KEY SYSTEM ".

  1. CHECK PASSENGER SELECT UNLOCK RELAY CIRCUIT
    NOTE: The passenger select unlock relay must remain connected during this step.
    1. Turn ignition switch OFF.
    2. Disconnect BCM and inoperative back or rear door lock actuator.
    3. Check continuity between BCM connector (A) M20 terminal 65 and rear door lock actuator LH connector (B) D205 terminal 2 or rear door lock actuator RH connector (B) D305 Terminal 2 or glass hatch lock actuator (C) D508 terminal 4.

      65 - 2: Continuity should exist  .

      65 - 4: Continuity should exist  .

    4. Check continuity between BCM connector M20 terminals 66 and body ground.

      65 - Ground: Continuity should not exist  .

      Fig 1: Checking Continuity Between BCM Connector M20 Terminals 65 And Ground
      G05713132Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: GO TO  4

      NO: GO TO 2

  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) M11 terminal 3.

      65 - 3: Continuity should exist  .

    3. Check continuity between BCM connector (A) M20 terminal 65 and body ground.

      65 - Ground: Continuity should not exist  .

      Fig 2: Checking Continuity Between BCM Connector M20 And Passenger Select Unlock Relay Connector M11 Terminals
      G05713133Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal? 

      YES: GO TO 3

      NO: Repair or replace harness between BCM and relay.

  3. CHECK PASSENGER SELECT UNLOCK RELAY OUTPUT
    1. Disconnect inoperative rear door or glass hatch lock actuator.
    2. Check continuity between passenger select unlock relay connector (A) M11 terminal 4 and rear door lock actuator LH connector (B) D205 terminal 2 or rear door lock actuator RH connector (B) D305 terminal 2 or glass hatch lock actuator connector (C) D508 terminal 4.

      4 - 2: Continuity should exist  .

      4 - 4: Continuity should exist  .

    3. Check continuity between passenger select unlock relay connector (A) M11 terminal 4 and ground.

      4 - Ground: Continuity should not exist  .

    Fig 3: Checking Continuity Between Passenger Select Unlock Relay Connector M11 Terminal 4 And Ground
    G05713134Courtesy of NISSAN NORTH AMERICA, INC.

    Is the inspection result normal? 

    YES: Replace passenger select unlock relay.

    NO: Repair or replace harness between relay and actuator.

  4. CHECK REAR DOOR LOCK ACTUATOR ASSEMBLY
    1. Reconnect BCM.
    2. Check voltage between rear door lock actuator connector LH (A) D205 terminals 1 and 2 or rear door lock actuator connector RH (A) D305 terminals 1 and 2 or glass hatch lock actuator (B) D508 terminals 2 and 4.
      Connector Terminals Condition Voltage (V) (Approx.)
      (+) (-)
      A: D205 (LH)
      A: D305 (RH)
      2 1 Main power window and door lock/unlock switch is turned to LOCK 0 → Battery voltage for 300 msec.
      B: D508 4 2
      Fig 4: Checking Voltage Between Rear Door Lock Actuator Connector LH D205 Terminals 1 And 2
      G05713135Courtesy of NISSAN NORTH AMERICA, INC.
    3. Check voltage between rear door lock actuator connector LH (A) D205 terminals 1 and 2 or rear door lock actuator connector RH (A) D305 terminals 1 and 2 or glass hatch lock actuator (B) D508 terminals 2 and 4.
    Connector Terminals Condition Voltage (V) (Approx.)
    (+) (-)
    A: D205 (LH)
    A: D305 (RH)
    1 2 Main power window and door lock/unlock switch is turned to UNLOCK 0 → Battery voltage for 300 msec.
    B: D508 2 4
    Fig 5: Checking Voltage Between Rear Door Lock Actuator Connector LH D205 Terminals 1 And 2
    G05713136Courtesy of NISSAN NORTH AMERICA, INC.

    Is the inspection result normal? 

    YES: Replace rear or glass hatch lock actuator.

    NO: Repair or replace harness between actuator and splice.