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Home >> Infiniti >> 2017 >> Q60 Sport, AWD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System (Direct Adaptive Steering) (Basic Inspection And DTCS) >> DTC / Circuit Diagnosis >> DTC C13B3-00: Control Module >> EPS/DAST 3 >> Diagnosis Procedure >> Diagnostic Test
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Diagnostic Test

  1. CHECK THE MOTOR

    Check the steering force motor. Refer to COMPONENT INSPECTION .

    Is the inspection result normal?

    YES 

    GO TO STEP 2  .

    NO 

    Steering force motor is malfunction. Replace steering column assembly. Refer to REMOVAL AND INSTALLATION .

  2. CHECK THE MOTOR CIRCUIT

    1. Disconnect steering force control module and steering force motor harness connector.
    2. Check the continuity between control module harness connector and motor harness connector.
      Steering force control module Steering force motor Continuity
      Connector Terminal Connector Terminal
      M151 35 M153 1 Existed
      36 2
      37 3
      M152 38 M154 5
    3. Check the continuity between control module harness connector and ground.
      Steering force control module - Continuity
      Connector Terminal
      M151 35 Ground Not existed
      36
      37
      M152 38

    Is the inspection result normal?

    YES 

    GO TO STEP 3  .

    NO 

    Repair or replace error - detected part.

  3. CHECK INTERMITTENT INCIDENT

    1. Check enlarged contact spring of terminal. Refer to HOW TO CHECK TERMINAL .
    2. Perform intermittent incident while turning steering wheel. Refer to INTERMITTENT INCIDENT .

    Is the inspection result normal?

    YES 

    Replace steering force control module. Refer to REMOVAL AND INSTALLATION .

    NO 

    Repair or replace error - detected part.