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Home >> Infiniti >> 2017 >> QX80 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 19 (Security Control System (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> DTC B2605: PNP Switch >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX50. However, it is still accessible from the selected car via links, so may be relevant.

  1. CHECK DTC WITH IPDM E/R

    Check "Self diagnostic result" with CONSULT. Refer to DTC INDEX .

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Repair or replace the malfunctioning parts.

  2. CHECK TRANSMISSION RANGE SWITCH CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect TCM connector and BCM connector.
    3. Check continuity between TCM harness connector and BCM harness connector.
      TCM BCM Continuity
      Connector Terminal Connector Terminal
      F51 9 M123 140 Existed
    4. Check continuity between TCM harness connector and ground.
      TCM Ground Continuity
      Connector Terminal
      F51 9 Not existed

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair or replace harness or connector.

  3. CHECK INTERMITTENT INCIDENT

    Refer to INTERMITTENT INCIDENT .

    INSPECTION END

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