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Home >> Nissan-Datsun >> 2010 >> Cube Base >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Security Control System (With Intelligent Key System) >> DTC/Circuit Diagnosis >> DTC B26F5: Steering Lock Status Switch >> Diagnosis Procedure
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Diagnosis Procedure

  1. INSPECTION START

    Perform inspection in accordance with procedure that confirms DTC.

    Which procedure confirms DTC? 

    DTC confirmation procedure 1: GO TO 2.

    DTC confirmation procedure 2: GO TO  4.

  2. CHECK IPDM E/R INPUT SIGNAL
    1. Turn ignition switch OFF.
    2. Check voltage between IPDM E/R harness connector and ground.
    VOLTAGE SPECIFICATION

    (+) (-) Condition Voltage (V) (Approx.)
    IPDM E/R
    Connector Terminal
    E17 65 Ground Steering lock unit Lock 0
    Unlock Battery voltage
    68 Lock Battery voltage
    Unlock 0

    Is the inspection result normal? 

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

    NO: GO TO 3.

  3. CHECK IPDM E/R INPUT SIGNAL CIRCUIT
    1. Disconnect IPDM E/R connector and steering lock unit connector.
    2. Check continuity between IPDM E/R harness connector and steering lock unit harness connector.
      CONTINUITY SPECIFICATION

      IPDM E/R Steering lock unit Continuity
      Connector Terminal Connector Terminal
      E17 65 M12 3 Existed
      68 8
    3. Check continuity between IPDM E/R harness connector and ground.
    CONTINUITY SPECIFICATION

    IPDM E/R Ground Continuity
    Connector Terminal
    E17 65 Not existed
    68

    Is the inspection result normal? 

    YES: Replace steering lock unit.

    NO: Repair or replace harness.

  4. CHECK BCM INPUT SIGNAL
    1. Turn ignition switch OFF.
    2. Check voltage between BCM harness connector and ground.
    VOLTAGE SPECIFICATION

    (+) (-) Condition Voltage (V) (Approx.)
    BCM
    Connector Terminal
    M71 107 Ground Steering lock unit Lock 0
    Unlock Battery voltage
    108 Lock Battery voltage
    Unlock 0

    Is the inspection result normal? 

    YES: Replace BCM. Refer to "REMOVAL AND INSTALLATION ".

    NO: GO TO 5.

  5. CHECK BCM INPUT SIGNAL CIRCUIT
    1. Disconnect BCM connector and steering lock unit connector.
    2. Check continuity between BCM harness connector and steering lock unit harness connector.
    CONTINUITY SPECIFICATION

    BCM Steering lock unit Continuity
    Connector Terminal Connector Terminal
    M71 107 M12 3 Existed
    108 8
  6. Check continuity between BCM harness connector and ground.
CONTINUITY SPECIFICATION

BCM Ground Continuity
Connector Terminal
M71 107 Not existed
108

Is the inspection result normal? 

YES: Replace steering lock unit.

NO: Repair or replace harness.