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Home >> Infiniti >> 2021 >> Q50 Pure, AWD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System (DTCS) (1 Of 2) >> EPS/DAST 3 (Steering Force Control Module) >> DTC C13DE-00: Temperature Sensor >> DTC Diagnosis Procedure
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DTC Diagnosis Procedure

  1. CHECK TEMPERATURE SENSOR POWER SUPPLY (1) 
    1. Turn the ignition switch OFF.
    2. Disconnect force motor angle sensor harness connector.
    3. Turn the ignition switch ON.
    4. Check the voltage between force motor angle sensor harness connector terminals.

      Force motor angle sensor

      Voltage

      Connector

      Terminal

      +

      -

      M73

      3

      7

      Approx. 5 V

    Is the inspection result normal?

    YES

    GO TO 6.

    NO

    GO TO 2.

  2. CHECK TEMPERATURE SENSOR POWER SUPPLY (2) 

    Check the voltage between force motor angle sensor harness connector terminals.

    Force motor angle sensor

    Voltage

    Connector

    Terminal

    +

    --

    M73

    3

    Ground

    Approx. 5 V

    Is the inspection result normal?

    YES

    GO TO 3.

    NO

    GO TO 4.

  3. CHECK TEMPERATURE SENSOR GROUND CIRCUIT 
    1. Turn the ignition switch OFF.
    2. Disconnect steering force control module harness connector.
    3. Check the continuity between steering force control module harness connector and force motor angle sensor harness connector.

      Steering force control module

      Force motor angle sensor

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M71

      29

      M73

      7

      Existed

    Is the inspection result normal?

    YES

    GO TO 7.

    NO

    Repair open circuit or short to ground or short to power in harness or connectors.

  4. CHECK TEMPERATURE SENSOR POWER SUPPLY CIRCUIT 
    1. Turn the ignition switch OFF.
    2. Disconnect steering force control module harness connector.
    3. Check the continuity between steering force control module harness connector and force motor angle sensor harness connector.

      Steering force control module

      Force motor angle sensor

      Continuity

      Connector

      Terminal

      Connector

      Terminal

      M71

      31

      M73

      3

      Existed

    4. Check the continuity between steering force control module harness connector and ground.

      Steering force control module

      --

      Continuity

      Connector

      Terminal

      M71

      31

      Ground

      Not existed

    Is the inspection result normal?

    YES

    GO TO 5.

    NO

    Repair open circuit or short to ground or short to power in harness or connectors.

  5. CHECK CONTROL MODULE POWER SUPPLY CIRCUIT 

    Check the power supply circuit for steering force control module. Refer to Diagnosis Procedure .

    Is the inspection result normal?

    YES

    GO TO 7.

    NO

    Repair or replace error-detected part.

  6. CHECK TEMPERATURE SENSOR 

    Check the force motor temperature sensor. Refer to Component Inspection .

    Is the inspection result normal?

    YES

    GO TO 7.

    NO

    Force motor temperature sensor is malfunction. Replace steering column assembly. Refer to STEERING COLUMN : Removal & Installation .

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

    Is the inspection result normal?

    YES

    Replace steering force control module. Refer to STEERING FORCE CONTROL MODULE : Removal & Installation .

    NO

    Repair or replace error-detected part.