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Home >> Nissan-Datsun >> 2016 >> Sentra FE+S >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Security Control System (With Intelligent Key System) (DTCS)) >> DTC/Circuit Diagnosis >> DTC B2605: Shift Position >> Diagnosis Procedure
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Diagnosis Procedure

WARNING: This page is about a different car, the 2017 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.

Regarding Wiring Diagram information, refer to WIRING DIAGRAM .

  1. CHECK IPDM E/R INPUT SIGNAL

    1. Turn ignition switch ON.
    2. Check voltage between IPDM E/R harness connector and ground.
      (+) (-) Condition Voltage (V)
      (Approx.)
      IPDM E/R
      Connector Terminal
      E43 4 Ground Selector lever P or N position Battery voltage
      Other than above 0

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    GO TO STEP 2  .

  2. CHECK IPDM E/R INPUT SIGNAL CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect IPDM E/R connector.
    3. Disconnect transmission range switch connector.
    4. Check continuity between IPDM E/R harness connector and transmission range switch harness connector.
      IPDM E/R Transmission range switch Continuity
      Connector Terminal Connector Terminal
      E43 4 F26 10 Yes
    5. Check continuity between IPDM E/R harness connector and ground.
      IPDM E/R Ground Continuity
      Connector Terminal
      E43 4 No

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    Repair or replace harness.

  3. CHECK BCM INPUT SIGNAL

    Check voltage between BCM harness connector and ground.

    (+) (-) Condition Voltage (V)
    (Approx.)
    BCM
    Connector Terminal
    M83 69 Ground Selector lever P or N position Battery voltage
    Other than above 0

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    GO TO STEP 4  .

  4. CHECK BCM INPUT SIGNAL CIRCUIT

    1. Turn ignition switch OFF.
    2. Disconnect BCM connector.
    3. Disconnect transmission range switch connector.
    4. Check continuity between BCM harness connector and transmission range switch harness connector.
      BCM Transmission range switch Continuity
      Connector Terminal Connector Terminal
      M83 69 F26 10 Yes
    5. Check continuity between IPDM E/R harness connector and ground.
      BCM Ground Continuity
      Connector Terminal
      M83 69 No

    Is the inspection result normal?

    YES 

    GO TO STEP 5  .

    NO 

    Repair or replace harness.

  5. REPLACE BCM

    1. Replace BCM. Refer to REMOVAL AND INSTALLATION .
    2. Perform initialization of BCM using CONSULT.
    3. Perform DTC CONFIRMATION PROCEDURE for B2605. Refer to DTC LOGIC .

    Is DTC B2605 detected again?

    YES 

    Replace IPDM E/R. Refer to REMOVAL AND INSTALLATION .

    NO 

    Inspection End.

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