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Home >> Infiniti >> 2012 >> M37 Base >> Repair and Diagnosis (Single Page) >> Body & Frame >> Door Locks >> Security Control System (With Intelligent Key System) >> DTC/Circuit Diagnosis >> DTC B210A: Steering Lock Unit >> Diagnosis Procedure
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Diagnosis Procedure

  1. CHECK IPDM E/R INPUT SIGNAL 
    1. Turn ignition switch OFF.
    2. Check voltage between IPDM E/R harness connector and ground.
      (+) (-) Condition Voltage (V) (Approx.)
      IPDM E/R
      Connector Terminal
      E17 32 Ground Steering lock unit Lock 0
      Unlock 12
      34 Lock 12
      Unlock 0

      Is the inspection result normal? 

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

      NO: GO TO 2.

  2. 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.
      IPDM E/R Steering lock unit Continuity
      Connector Terminal Connector Terminal
      E5 32 M40 3 Existed
      34 8
    3. Check continuity between IPDM E/R harness connector and ground.
      IPDM E/R Ground Continuity
      Connector Terminal
      E5 32 Not existed
      34

      Is the inspection result normal? 

      YES: GO TO 3.

      NO: Repair or replace harness.

  3. REPLACE STEERING LOCK UNIT 
    1. Replace steering lock unit.
    2. Perform the service procedure for steering lock unit replacement. Refer to CONSULT display instruction.

      : INSPECTION END

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