Diagnosis Procedure (With LH and RH Anti-Pinch)

2012 Nissan-Datsun Altima BaseSECTION Diagnosis Procedure (With LH and RH Anti-Pinch)

Regarding Wiring Diagram information, refer to "WIRING DIAGRAM - SEDAN WITH INTELLIGENT KEY SYSTEMΒ ".

  1. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
    1. Turn ignition switch ON.
    2. Check voltage between main power window and door lock/unlock switch connector and ground.
      Terminals Key position Voltage (V) (Approx.)
      (+) (-)
      Main power window and door lock/unlock switch connector Terminal
      D7 4 Ground Lock 0
      Neutral / Unlock 5
      6 Unlock 0
      Neutral / Lock 5
      Fig 1: Checking Door Key Cylinder Switch Input Signal
      G04902477Courtesy of NISSAN NORTH AMERICA, INC.

      Is the inspection result normal?Β 

      YES: Replace main power window and door lock/unlock switch. Refer to "REMOVAL AND INSTALLATION ".

      NO: GO TO 2

  2. CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT
    1. Turn ignition switch OFF.
    2. Disconnect main power window and door lock/unlock switch connector and front door lock assembly LH (key cylinder switch) connector.
    3. Check continuity between main power window and door lock/unlock switch connector and front door lock assembly LH (key cylinder switch) connector.
      Main power window and door lock/unlock switch connector Terminal Front door lock assembly LH (key cylinder switch) connector Terminal Continuity
      A: D7 4 B: D10 6 Yes
      6 5
      Fig 2: Checking Door Key Cylinder Signal Circuit
      G05046829Courtesy of NISSAN NORTH AMERICA, INC.
    4. Check continuity between main power window and door lock/unlock switch connector and ground.
      Power window main switch connector Terminal Ground Continuity
      A: D7 4 No
      6

      Is the inspection result normal?Β 

      YES: GO TO 3

      NO: Repair or replace harness.

  3. CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT

    Check continuity between front door lock assembly LH connector and ground.

    Front door lock assembly LH connector Terminal Ground Continuity
    D10 4 Yes
    Fig 3: Checking Door Key Cylinder Switch Ground Circuit
    G05046830Courtesy of NISSAN NORTH AMERICA, INC.

    Is the inspection result normal?Β 

    YES: GO TO 4

    NO: Repair or replace harness.

  4. CHECK DOOR KEY CYLINDER SWITCH

    Check door key cylinder switch.

    Refer to "COMPONENT INSPECTIONΒ ".

    Is the inspection result normal?Β 

    YES: Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".

    NO: Replace front door lock assembly LH (key cylinder switch). Refer to "FRONT DOOR LOCK: REMOVAL AND INSTALLATION ".

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.