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Home >> Infiniti >> 2012 >> G25 Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (Security Control System) >> DTC/Circuit Diagnosis >> DTC B2601: Shift Position >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2011 Nissan Leaf. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK P POSITION SIGNAL CIRCUIT 1
    1. Turn power switch OFF.
    2. Disconnect BCM connector.
    3. Disconnect electric shift control module connector.
    4. Check continuity between BCM harness connector and electric shift control module harness connector.
      CONTINUITY REFERENCE CHART

      BCM Electric shift control module Continuity
      Connector Terminal Connector Terminal
      M68 37 M58 12 Existed

      Is the inspection result normal? 

      YES: Go to 2.

      NO: Repair or replace harness.

  2. CHECK P POSITION SIGNAL CIRCUIT 2
    1. Disconnect IPDM E/R connector.
    2. Check continuity between IPDM E/R harness connector and electric shift control module harness connector.
      CONTINUITY REFERENCE CHART

      IPDM E/R Electric shift control module Continuity
      Connector Terminal Connector Terminal
      E17 64 M58 12 Existed

      Is the inspection result normal? 

      YES: Go to 3.

      NO: Repair or replace harness.

  3. REPLACE BCM
    1. Replace BCM. Refer to "REMOVAL AND INSTALLATION ".
    2. Perform initialization of BCM and registration of all Intelligent Keys using CONSULT.
    3. Perform DTC CONFIRMATION PROCEDURE for B2601. Refer to "DTC LOGIC ".

      Is DTC detected? 

      YES: Replace IPDM E/R. Refer to "REMOVAL AND INSTALLATION ".

      NO: INSPECTION END