LEMON Manuals: Even more car manuals for everyone
Home >> Infiniti >> 2017 >> QX80 Limited >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Interior Lighting System >> DTC/Circuit Diagnosis >> Push-Button Ignition Switch Illumination Circuit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK PUSH-BUTTON IGNITION SWITCH ILLUMINATION POWER SUPPLY OUTPUT

    G-20 CONSULT ACTIVE TEST

    1. Turn ignition switch ON.
    2. Select "ENGINE SW ILLUMI" of BCM (INTELLIGENT KEY) active test item.
    3. With operating the test items, check voltage between push-button ignition switch harness connector and ground.
    (+) (-) Condition Voltage
    (Approx.)
    Push-button ignition switch
    Connector Terminal
    M101 3 Ground ENGINE SW ILLUMI ON 12 V
    OFF 0 V

    Is the inspection result normal?

    YES 

    GO TO STEP  4.

    NO 

    GO TO STEP 2  .

  2. CHECK PUSH-BUTTON IGNITION SWITCH ILLUMINATION POWER SUPPLY OPEN CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect BCM connector and push-button ignition switch connector.
    3. Check continuity between BCM harness connector and the push-button ignition switch harness connector.
    BCM Push-button ignition switch Continuity
    Connector Terminal Connector Terminal
    M71 90 M101 3 Existed

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair or replace harnesses.

  3. CHECK PUSH-BUTTON IGNITION SWITCH ILLUMINATION POWER SUPPLY SHORT CIRCUIT

    Check continuity between BCM harness connector and ground.

    BCM Ground Continuity
    Connector Terminal
    M71 90 Not existed

    Is the inspection result normal?

    YES 

    Replace BCM. Refer to REMOVAL AND INSTALLATION .

    NO 

    Repair or replace harnesses.

  4. CHECK PUSH-BUTTON IGNITION SWITCH ILLUMINATION GROUND CIRCUIT-1

    1. Turn ignition switch OFF.
    2. Turn lighting switch OFF.
    3. Check voltage between BCM harness connector and ground.
    (+) (-) Voltage
    (Approx.)
    BCM
    Connector Terminal
    M71 92 Ground 0 V

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    Replace BCM. Refer to REMOVAL AND INSTALLATION .

  5. CHECK PUSH-BUTTON IGNITION SWITCH ILLUMINATION GROUND CIRCUIT-2

    1. Disconnect push-button ignition switch connector and BCM connector.
    2. Check continuity between push-button ignition switch harness connector and BCM harness connector.
      Push-button ignition switch BCM Continuity
      Connector Terminal Connector Terminal
      M101 2 M71 92 Existed
    3. Check continuity between push-button ignition switch harness connector and ground.
      Push-button ignition switch Ground Continuity
      Connector Terminal
      M101 2 Not existed

    Is the inspection result normal?

    YES 

    Replace push-button ignition switch.

    NO 

    Repair or replace harnesses.

scientia non olet · About LEMON Manuals