LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2021 >> Q50 Pure, AWD >> Repair and Diagnosis (Single Page) >> Steering >> Steering Control Systems >> Steering Control System (DTCS) (1 Of 2) >> EPS/DAST 3 (Steering Force Control Module) >> DTC C13E1-00: Steering Clutch >> DTC Diagnosis Procedure >> Direct Adaptive Steering System
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Direct Adaptive Steering System

  1. CHECK THE STEERING CLUTCH 

    Check the steering clutch. Refer to Component Inspection .

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Steering clutch is malfunction. Replace steering clutch assembly. Refer to STEERING SHAFT : Removal & Installation .

  2. CHECK THE CLUTCH CIRCUIT 
    1. Disconnect steering force control module.
    2. Check the continuity between steering force control module harness connector and steering clutch harness connector.

      Steering force control module

      Steering clutch

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M71

      26

      M156

      1

      Existed

      28

      3

    3. Check the continuity between control module harness connector and ground.

      Steering force control module

      --

      Continuity

      Connector

      Terminal

      M71

      26

      Ground

      Not existed

      28

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    Repair or replace error-detected part.

  3. REPLACE STEERING CLUTCH 

    SYMBOL With CONSULT

    1. Replace steering clutch assembly. Refer to STEERING SHAFT : Removal & Installation .
    2. Start the engine.
      CAUTION: Never drive the vehicle.
    3. On the CONSULT screen, select "EPS/DAST 3">>"DATA MONITOR">>"TORQUE SEN MAIN 1".
    4. Check that the value is within standard value while steering the steering wheel. Refer to Values On The Diagnosis Tool .

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    GO TO 4.

  4. REPLACE STEERING FORCE CONTROL MODULE 

    SYMBOL With CONSULT

    1. Replace steering force control module. Refer to STEERING FORCE CONTROL MODULE : Removal & Installation .
    2. Start the engine.
      CAUTION: Never drive the vehicle.
    3. On the CONSULT screen, select "EPS/DAST 3">>"DATA MONITOR">>"TORQUE SEN MAIN 1".
    4. Check that the value is within standard value while steering the steering wheel. Refer to Values On The Diagnosis Tool .

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace steering gear assembly. Refer to STEERING GEAR AND LINKAGE : Removal & Installation .