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HOMESERVICE MANUALSINFINITI2013M37 XREPAIR AND DIAGNOSISBODY & FRAMEWINDOWSPOWER WINDOW CONTROL SYSTEMDTC/CIRCUIT DIAGNOSISPOWER WINDOW SERIAL LINKPOWER WINDOW MAIN SWITCHPOWER WINDOW MAIN SWITCH: DIAGNOSIS PROCEDURE
2013 Infiniti M37 x

POWER WINDOW MAIN SWITCH: Diagnosis Procedure

2013 Infiniti M37 xSECTION POWER WINDOW MAIN SWITCH: Diagnosis Procedure
  1. CHECK POWER WINDOW SWITCH INPUT SIGNAL 
    1. Turn ignition switch ON.
    2. Check signal between power window main switch harness connector and ground with oscilloscope.
      (+) (-) Signal (Reference value)
      power window main switch
      Connector Terminal
      D22 13 Ground
      G05720617

      Is the inspection result normal? 

      YES: GO TO  4.

      NO: GO TO 2.

  2. CHECK POWER WINDOW SERIAL LINK SIGNAL 
    1. Turn ignition switch OFF.
    2. Disconnect power window main switch connector.
    3. Turn ignition switch ON.
    4. Check voltage between power window main switch harness connector and ground.
      (+) (-) Voltage (V) (Approx.)
      Power window main switch
      Connector Terminal
      D22 13 Ground 12

      Is the inspection result normal? 

      YES: Replace power window main switch. Refer to "REMOVAL AND INSTALLATION ".

      NO: GO TO 3.

  3. CHECK POWER WINDOW SERIAL LINK CIRCUIT 
    1. Disconnect BCM connector and power window main switch connector.
    2. Check continuity between BCM harness connector and power window main switch harness connector.
      BCM Power window main switch Continuity
      Connector Terminal Connector Terminal
      M120 8 D22 13 Existed
    3. Check continuity between BCM harness connector and ground.
      BCM Ground Continuity
      Connector Terminal
      M120 8 Not existed

      Is the inspection result normal? 

      YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

      NO: Repair or replace harness.

  4. CHECK INTERMITTENT INCIDENT 

    Refer to "INTERMITTENT INCIDENT ".

    : INSPECTION END

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

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

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