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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Steering >> Power Steering >> Power Steering System - Diagnostic Codes & Circuit Tests >> Power Steering System >> DTC C14FE-14: Steering Angle Sensor Supply Voltage Circuit Short to Ground or Open [11/2023 - ] >> Procedure

DTC C14FE-14: Steering Angle Sensor Supply Voltage Circuit Short to Ground or Open [11/2023 - ]: Procedure

  1. CLEAR DTC 
    1. Clear the DTCs.

      Chassis > EMPS > Clear DTCs 

      Result

      Proceed to
      NEXT
    2. Turn the ignition switch off.

    Result: 

    NEXT 

    See step  2

  2. RECONFIRM DTC 
    1. Based on the Freeze Frame Data and interview with the customer, attempt to reproduce the conditions when the malfunction occurred.
    2. Check if the same DTC is output.

      Chassis > EMPS > Trouble Codes 

      Result

      Result Proceed to
      C14FE-14 is not output A
      C14FE-14 is output B

    Result: 

    A 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [12/2019 - ] 

    Result: 

    B 

    See step  3

  3. CHECK VEHICLE SPECIFICATION 

    Result

    Result Proceed to
    w/o Stop and Start System A
    w/ Stop and Start System B

    Result: 

    B 

    See step  7

    Result: 

    A 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (IGR TERMINAL) 
    1. Disconnect the H57 steering sensor connector.
      GTY1177887Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Steering Sensor)
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      H57-9 (IGR) - Body ground Ignition switch ON 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  5

  5. CHECK HARNESS AND CONNECTOR (BAT TERMINAL) 
    1. Turn the ignition switch off.
      GTY879597Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Steering Sensor)
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      H57-4 (BAT) - Body ground Always 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  6

  6. CHECK HARNESS AND CONNECTOR (ESS TERMINAL) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H57-6 (ESS) - Body ground 1 minute or more after disconnecting the cable from the negative (-) auxiliary battery terminal Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE STEERING SENSOR. Refer to  REMOVAL [11/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  7. CHECK HARNESS AND CONNECTOR (IGR TERMINAL) 
    1. Disconnect the H57 steering sensor connector.
      GTY1177887Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Steering Sensor)
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      H57-9 (IGR) - Body ground Ignition switch ON 10.5 to 16 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    GO TO STOP AND START SYSTEM (BACKUP BOOST CONVERTER CIRCUIT). Refer to  Backup Boost Converter Circuit [11/2023 - ] 

    Result: 

    OK 

    See step  8

  8. CHECK HARNESS AND CONNECTOR (BAT TERMINAL) 
    1. Turn the ignition switch off.
      GTY879597Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Steering Sensor)
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      H57-4 (BAT) - Body ground Always 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  9

  9. CHECK HARNESS AND CONNECTOR (ESS TERMINAL) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H57-6 (ESS) - Body ground 1 minute or more after disconnecting the cable from the negative (-) auxiliary battery terminal Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE STEERING SENSOR. Refer to  REMOVAL [11/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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