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Home >> Infiniti >> 2010 >> G37 Base, 2D Coupe >> Repair and Diagnosis >> External Pages >> Different car >> Section 221 (Security Control System) >> With Intelligent Key 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 Juke. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CVT SHIFT SELECTOR POWER SUPPLY
    1. Turn ignition switch OFF.
    2. Disconnect CVT shift selector (detention switch) connector.
    3. Check voltage between CVT shift selector (detention switch) harness connector and ground.
      CONNECTOR TERMINALS VOLTAGE REFERENCE CHART

      (+) (-) Voltage (V) (Approx.)
      CVT shift selector (detention switch)
      Connector Terminal
      M57 12 Ground 12

      Is the inspection result normal? 

      YES: GO TO  4.

      NO: GO TO 2.

  2. CHECK CVT SHIFT SELECTOR POWER SUPPLY CIRCUIT
    1. Disconnect BCM connector.
    2. Check continuity between CVT shift selector (detention switch) harness connector and BCM harness connector.
      CONNECTOR TERMINALS CONTINUITY REFERENCE CHART

      CVT shift selector (detention switch) BCM Continuity
      Connector Terminal Connector Terminal
      M57 12 M70 104 Existed
    3. Check continuity between CVT shift selector (detention switch) harness connector and ground.
      CONNECTOR TERMINALS CONTINUITY REFERENCE CHART

      CVT shift selector (detention switch) Ground Continuity
      Connector Terminal
      M57 12 Not 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-III.

      For initialization and registration procedures, refer to CONSULT-III Operation Manual NATS-IVIS/NVIS.

      INSPECTION END

  4. CHECK CVT SHIFT SELECTOR CIRCUIT (IPDM E/R)
    1. Disconnect IPDM E/R connector.
    2. Check continuity between CVT shift selector (detention switch) harness connector and IPDM E/R harness connector.
      CONNECTOR TERMINALS CONTINUITY REFERENCE CHART

      CVT shift selector (detention switch) IPDM E/R Continuity
      Connector Terminal Connector Terminal
      M57 13 E17 64 Existed

      Is the inspection result normal? 

      YES: GO TO 5.

      NO: Repair or replace harness.

  5. CHECK CVT SHIFT SELECTOR CIRCUIT (BCM)
    1. Disconnect BCM connector.
    2. Check continuity between CVT shift selector (detention switch) harness connector and BCM harness connector.
      CONNECTOR TERMINALS CONTINUITY REFERENCE CHART

      CVT shift selector (detention switch) BCM Continuity
      Connector Terminal Connector Terminal
      M57 13 M68 37 Existed
    3. Check continuity between CVT shift selector (detention switch) harness connector and ground.
      CONNECTOR TERMINALS CONTINUITY REFERENCE CHART

      CVT shift selector (detention switch) Ground Continuity
      Connector Terminal
      M57 13 Not existed

      Is the inspection result normal? 

      YES: GO TO 6.

      NO: Repair or replace harness.

  6. REPLACE BCM
    1. Replace BCM. Refer to "REMOVAL AND INSTALLATION ".
    2. Perform initialization of BCM and registration of all Intelligent Keys using CONSULT-III.

      For initialization and registration procedures, refer to CONSULT-III Operation Manual NATS-IVIS/NVIS.

    3. Perform DTC CONFIRMATION PROCEDURE for DTC B2601. Refer to , "DTC LOGIC ".

      Is DTC B2601 detected again? 

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

      NO: INSPECTION END

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