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Home >> Infiniti >> 2017 >> QX70 RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 183 (LAN System (Can) (Wiring Diagrams And Circuit Diagnosis) (Hybrid)) >> Circuit Diagnosis >> Main Line Between AVM And APA Circuit >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti Q50. However, it is still accessible from the selected car via links, so may be relevant.

  1. CHECK CONNECTOR

    1. Turn the ignition switch OFF.
    2. Disconnect the 12V battery cable from the negative terminal.
    3. Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side).
      • Harness connector B62
      • Harness connector M22

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Repair the terminal and connector.

  2. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

    1. Disconnect the following harness connectors.
      • Around view monitor control unit
      • Harness connectors B62 and M22
    2. Check the continuity between the around view monitor control unit harness connector and the harness connector.
      Around view monitor control unit harness connector Harness connector Continuity
      Connector No. Terminal No. Connector No. Terminal No.
      B50 27 B62 18 Existed
      28 17 Existed

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Replace the body No. 2 harness.

  3. CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

    1. Disconnect the harness connectors M148 and M157.
    2. Check the continuity between the harness connectors terminals.
      Harness connector Harness connector Continuity
      Connector No. Terminal No. Connector No. Terminal No.
      M22 18 M148 3 Existed
      17 9 Existed

    Is the inspection result normal?

    YES (Present error) 

    Check CAN system type decision again.

    YES (Past error) 

    Error was detected in the main line between the around view monitor control unit and the accelerator pedal actuator/accelerator pedal position sensor.

    NO 

    Repair the main line between the harness connectors M22 and the accelerator pedal actuator/accelerator pedal position sensor.