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Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT FUSE (GAUGE) 
    1. Remove the GAUGE fuse from the main body ECU.
    2. Measure the resistance.

      Standard resistance: Below 1 Ω 

    3. Reinstall the GAUGE fuse.

    NG: REPLACE FUSE 

    OK: GO TO NEXT STEP 

  2. INSPECT BULB (BACK-UP LIGHT BULB) 
    1. Hatchback:
      1. Remove the rear combination light assembly.
      2. Apply battery voltage to the terminals and check that the back-up light illuminates.

        Standard 

        TERMINALS VOLTAGES CHART

        Measurement Condition Standard
        Positive battery - Terminal 1
        Negative battery - Terminal 6        		 Back-up light Illuminates
      3. Reinstall the rear combination light assembly.
        Fig 1: Identifying Terminals Of Rear Combination Light Assembly Connector
        G04832731Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Sedan:
      1. Remove the rear combination light assembly.
      2. Apply battery voltage to the terminals and check that the back-up light illuminates.

      Standard 

      TERMINALS VOLTAGES CHART

      Measurement Condition Standard
      Positive battery - Terminal 5
      Negative battery - Terminal 6      		 Back-up light illuminates
    3. Reinstall the back-up light bulbs.
      4. Fig 2: Identifying Terminals Of Rear Combination Light Assembly Connector
      G04832698Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE BULB 

    OK: GO TO NEXT STEP 

  3. CHECK TRANSAXLE TYPE 
    1. Check the vehicle's transaxle type.

      Result 

      RESULT CHART

      Transaxle Type Proceed To
      ATT A
      M/T B

    B: Go to step  7

    A: GO TO NEXT STEP 

  4. INSPECT PARK/ NEUTRAL POSITION SWITCH 
    1. Disconnect the C27 park / neutral position switch connector.
    2. Measure the resistance.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Shift Position Specified Connection
      2 (RB) -1 (RL) R Below 1 Ω
      2 (RB) -1 (RL) Except R 10 kΩ or higher
    3. Reconnect the park / neutral position switch connector.
      4. Fig 3: Identifying Terminals Of Park / Neutral Position Switch Connector
      G04832733Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE PARK / NEUTRAL POSITION SWITCH 

    OK: GO TO NEXT STEP 

  5. CHECK HARNESS AND CONNECTOR (FUSE - PARK / NEUTRAL POSITION SWITCH) 
    1. Disconnect the C27 park / neutral position switch connector.
    2. Measure the voltage.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      C27-2 (RB) - Body ground Ignition switch ON 11 to 14 V
    3. Reconnect the park / neutral position switch connector.
      4. Fig 4: Identifying Terminals Of C27 Park / Neutral Position Switch Connector
      G04832734Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  6. CHECK HARNESS AND CONNECTOR (PARK / NEUTRAL POSITION SWITCH - REAR BACK-UP LIGHT) 
    1. Hatchback:
      1. Disconnect the C27 park / neutral position switch connector.
      2. Disconnect the J3 and J4 rear combination light assembly connectors.
      3. Measure the resistance.

        Standard resistance 

        TESTER CONNECTION SPECIFIED CONDITION CHART

        Tester Connection Specified Condition
        C27-1 (RL) - J3-1 Below 1 Ω
        C27-1(RL)-J4-1 Below 1 Ω
        C27-1 (RL) or J3-1 - Body ground 10 kΩ or higher
        C27-1 (RL) or J4-1 - Body ground 10 kΩ or higher
      4. Reconnect the park / neutral position switch connector.
      5. Reconnect the rear combination light assembly connectors.
        Fig 5: Identifying Terminals Of C27 Park / Neutral Position Switch Connector
        G04832735Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Sedan:
      1. Disconnect the C27 park / neutral position switch connector.
      2. Disconnect the J34 and J35 rear combination light assembly connectors.
      3. Measure the resistance.

        Standard resistance 

        TESTER CONNECTION SPECIFIED CONDITION CHART

        Tester Connection Specified Condition
        C27-1(RL)-J34-1 Below 1 Ω
        C27-1(RL)-J35-1 Below 1 Ω
        C27-1 (RL) or J34-1 - Body ground 10 kΩ or higher
        C27-1 (RL) or J35-1 - Body ground 10 kΩ or higher
      4. Reconnect the park / neutral position switch connector.
      5. Reconnect the rear combination light assembly connectors.
      3. Fig 6: Identifying Terminals Of C27 Park / Neutral Position Switch Connector
      G04832736Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (BACK-UP LIGHT - BODY GROUND) 

  7. INSPECT BACK-UP LIGHT SWITCH 
    1. Disconnect the back-up light switch connector.
    2. Measure the resistance.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Shift Position Specified Connection
      1-2 R Below 1 Ω
      1-2 Except R 10 kΩ or higher
    3. Reconnect the back-up light switch connector.
      4. Fig 7: Identifying Terminals Of Back-Up Light Switch Connector
      G04832737Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE BACK-UP LIGHT SWITCH 

    OK: GO TO NEXT STEP 

  8. CHECK HARNESS AND CONNECTOR (FUSE - BACK-UP LIGHT SWITCH) 
    1. Disconnect the C22 back-up light switch connector.
    2. Measure the voltage.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      C22-2 - Body ground Ignition switch ON 11 to 14 V
    3. Reconnect the back-up light switch connector.
      4. Fig 8: Identifying Terminals Of C22 Back-Up Light Switch Connector
      G04832738Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: GO TO NEXT STEP 

  9. CHECK HARNESS AND CONNECTOR (BACK-UP LIGHT SWITCH - BACK-UP LIGHT) 
    1. Hatchback:
      1. Disconnect the C22 back-up light switch connector.
      2. Disconnect the J3 and J4 rear combination light assembly connectors.
      3. Measure the resistance.

        Standard resistance 

        TESTER CONNECTION SPECIFIED CONDITION CHART

        Tester Connection Specified Condition
        C22-1-J3-1 Below 1 Ω
        C22-1-J4-1 Below 1 Ω
        C22-1 or J3-1 - Body ground 10 kΩ or higher
        C22-1 or J4-1 - Body ground 10 kΩ or higher
      4. Reconnect the back-up light switch connector.
      5. Reconnect the rear combination light assembly connectors.
        Fig 9: Identifying Terminals Of C22 Back-Up Light Switch Connector
        G04832739Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Sedan:
      1. Disconnect the C22 back-up light switch connector.
      2. Disconnect the J34 and J35 rear combination light assembly connectors.
      3. Measure the resistance.

        Standard resistance 

        TESTER CONNECTION SPECIFIED CONDITION CHART

        Tester Connection Specified Condition
        C22-1 - J34-1 Below 1 Ω
        C22-1 - J3S-1 Below 1 Ω
        C22-1 or J34-1 - Body ground 10 kΩ or higher
        C22-1 or J35-1 - Body ground 10 kΩ or higher
      4. Reconnect the back-up light switch connector.
      5. Reconnect the rear combination light assembly connectors.
      3. Fig 10: Identifying Terminals Of C22 Back-Up Light Switch Connector
      G04832740Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (BACK-UP LIGHT - BODY GROUND) 

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