LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2012 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 33 (Security Control System (Coupe)) >> DTC/Circuit Diagnosis >> DTC B2605: Shift Position >> Diagnosis Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Diagnosis Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK DTC WITH IPDM E/R

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

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Repair or replace the malfunctioning parts.

  2. CHECK TRANSMISSION RANGE SWITCH CIRCUIT 1
    1. Turn ignition switch OFF.
    2. Disconnect A/T assembly connector and BCM connector.
    3. Check continuity between A/T assembly harness connector and BCM harness connector.
      A/T assembly BCM Continuity
      Connector Terminal Connector Terminal
      F51 9 M123 140 Existed
    4. Check continuity between A/T assembly harness connector and ground.
      A/T assembly Ground Continuity
      Connector Terminal
      F51 9 Not existed

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair or replace harness.

  3. CHECK TRANSMISSION RANGE SWITCH CIRCUIT 2
    1. Disconnect TCM connector.
    2. Check continuity between TCM harness connector and A/T assembly harness connector.
      TCM A/T assembly Continuity
      Connector Terminal Connector Terminal
      F157 9 F51 9 Existed
    3. Check continuity between TCM harness connector and ground.
      TCM Ground Continuity
      Connector Terminal
      F157 9 Not existed

      Is the inspection result normal? 

      YES: GO TO 4.

      NO: Repair or replace harness.

  4. CHECK INTERMITTENT INCIDENT

    Refer to "INTERMITTENT INCIDENT ".

    : INSPECTION END