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Home >> Toyota >> 2014 >> Corolla L, Automatic Trans >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Seat Belt Warning System (W/O Occupant Classification System) - Diagnostics & Symptom Tests (Model Code: ZRE172) >> SEAT BELT WARNING SYSTEM (W/O Occupant Classification System) >> Front Passenger Side Seat Belt Warning Light Malfunction [04/2014 - 08/2017] >> Procedure
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Front Passenger Side Seat Belt Warning Light Malfunction [04/2014 - 08/2017]: Procedure

  1. READ VALUE USING TECHSTREAM 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Combination Meter / Data List.
    5. Read the Data List according to the display on the Techstream.

      Body Electrical > Combination Meter > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      P-Seatbelt Buckle SW Front passenger seat belt buckle switch ON or OFF ON: Front passenger seat belt fastened
      OFF: Front passenger seat belt unfastened
      The front passenger seat is occupied

      Body Electrical > Combination Meter > Data List 

      Tester Display
      P-Seatbelt Buckle SW

      OK

      The Techstream display changes correctly in response to the front passenger seat belt condition.

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [08/2013 - 08/2016]  Refer to  REMOVAL [08/2016 - ] 

    Result:  2

    NG 

    See step  2

  2. INSPECT OCCUPANT DETECTION SENSOR (SEPARATE TYPE FRONT SEAT CUSHION PAD) 
    1. Remove the occupant detection sensor (separate type front seat cushion pad).

      Refer to REMOVAL [04/2014 - 08/2017]

    2. Inspect the occupant detection sensor (separate type front seat cushion pad).

      Refer to INSPECTION [04/2014 - 08/2017]

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    REPLACE OCCUPANT DETECTION SENSOR (SEPARATE TYPE FRONT SEAT CUSHION PAD). Refer to  REMOVAL [04/2014 - 08/2017] 

    Result:  1

    OK 

    See step  3

  3. INSPECT FRONT SEAT INNER BELT ASSEMBLY RH 
    1. Remove the front seat inner belt assembly RH.

      Refer to REMOVAL [04/2014 - 08/2014] Refer to REMOVAL [08/2014 - 08/2016] Refer to REMOVAL [08/2016 - 08/2017]

    2. Inspect the front seat inner belt assembly RH.

      Refer to INSPECTION [04/2014 - 08/2016] Refer to INSPECTION [08/2016 - 08/2017]

      Result

      Proceed to
      OK
      NG

    Result:  2

    NG 

    REPLACE FRONT SEAT INNER BELT ASSEMBLY RH. Refer to  REMOVAL [04/2014 - 08/2014]  Refer to  REMOVAL [08/2014 - 08/2016]  Refer to  REMOVAL [08/2016 - 08/2017] 

    Result:  1

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FRONT SEAT INNER BELT ASSEMBLY RH - BODY GROUND) 
    1. Disconnect the E43 combination meter assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E43-7 (P/SB) - L55-3 (+) Always Below 1 Ω
      E43-7 (P/SB) - Body ground Always 10 kΩ or higher
      L55-3 (+) - Body ground Always 10 kΩ or higher
      L55-2 (E) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result:  1

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [08/2013 - 08/2016]  Refer to  REMOVAL [08/2016 - ] 

    Result:  2

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR