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Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK TURN SIGNAL LIGHT 
    1. Check that the turn signal lights blink.

      Result 

      TURN SIGNAL LIGHT

      Result Proceed to
      All turn signal lights do not blink A
      Only front turn signal light does not blink B
      Only rear combination light does not blink C
      Only door mirror foot light does not blink D

    B: Go to step   4

    C:  Go to step   5

    D: Go to step   6

    A: Go to next step 

  2. INSPECT FUSE (LH-IG, TURN-HAZ) 
    1. Remove the LH-IG fuse from the main body ECU.
    2. Remove the TURN-HAZ fuse from the engine room junction block.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      LH-IG, TURN-HAZ

      Tester Connection Condition Specified Condition
      LH-IG fuse Always Below 1 Ω
      TURN-HAZ fuse

    NG: REPLACE FUSE 

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (TURN SIGNAL FLASHER - BATTERY AND BODY GROUND) 
    1. Disconnect the J29 relay connector.
      Fig 1: Identifying Turn Signal Flasher Connector Terminals
      G05160763Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      TURN SIGNAL FLASHER - BATTERY AND BODY GROUND VOLTAGE

      Tester Connection Switch Condition Specified Condition
      J29-3 (IG) - Body ground Ignition switch ON 11 to 14 V
      Ignition switch OFF Below 1 V
      J29-1 (B) - Body ground Always 11 to 14 V
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TURN SIGNAL FLASHER - BATTERY AND BODY GROUND RESISTANCE

      Tester Connection Condition Specified Condition
      J29-4 (E) - Body ground Always Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

  4. CHECK HARNESS AND CONNECTOR (FRONT TURN SIGNAL LIGHT - TURN SIGNAL FLASHER AND BODY GROUND) 
    1. for LH:
      1. Disconnect the A12 light connector.
      2. Disconnect the J29 relay connector.
        Fig 2: Identifying Front LH Turn Signal Light Connector Terminals
        G05160764Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Measure the resistance according to the value(s) in the table below.

        Standard resistance 

        FRONT TURN SIGNAL LIGHT - TURN SIGNAL FLASHER AND BODY GROUND LH

        Tester Connection Condition Specified Condition
        A12-3 (B) - J29-10 (LTRN) Always Below 1 Ω
        A12-2 (E) - Body ground
        A12-3 (B) - Body ground Always 10 kΩ or higher
    2. for RH:
      1. Disconnect the A13 light connector.
      2. Disconnect the J29 relay connector.
        Fig 3: Identifying Front RH Turn Signal Light Connector Terminals
        G05160765Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Measure the resistance according to the value(s) in the table below.

        Standard resistance 

        FRONT TURN SIGNAL LIGHT - TURN SIGNAL FLASHER AND BODY GROUND RH

        Tester Connection Condition Specified Condition
        A13-3 (B) - J29-17 (RTRN) Always Below 1 Ω
        A13-2 (E) - Body ground
        A13-3 (B) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

  5. CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT - TURN SIGNAL FLASHER AND BODY GROUND) 
    1. for LH:
      1. Disconnect the R5 light connector.
      2. Disconnect the J29 relay connector.
        Fig 4: Identifying Rear Combination Light Connector Terminals - LH
        G05160766Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Measure the resistance according to the value(s) in the table below.

        Standard resistance 

        REAR COMBINATION LIGHT - TURN SIGNAL FLASHER AND BODY GROUND LH

        Tester Connection Condition Specified Condition
        R5-5 (TRN) - J29-2 (LL) Always Below 1 Ω
        R5-6 (E) - Body ground
        R5-5 (TRN) - Body ground Always 10 kΩ or higher
    2. for RH:
      1. Disconnect the R4 light connector.
      2. Disconnect the J29 relay connector.
        Fig 5: Identifying Rear Combination Light Connector Terminals - RH
        G05160767Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Measure the resistance according to the value(s) in the table below.

        Standard resistance 

        REAR COMBINATION LIGHT - TURN SIGNAL FLASHER AND BODY GROUND RH

        Tester Connection Condition Specified Condition
        R4-5 (TRN) - J29-8 (LR) Always Below 1 Ω
        R4-6 (E) - Body ground
        R4-5 (TRN) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

  6. CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR - TURN SIGNAL FLASHER AND BODY GROUND) 
    1. for LH:
      1. Disconnect the N5 light connector.
      2. Disconnect the J29 relay connector.
        Fig 6: Identifying Outer Rear View Mirror Connector Terminals - LH
        G05160768Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Measure the resistance according to the value(s) in the table below.

        Standard resistance 

        OUTER REAR VIEW MIRROR - TURN SIGNAL FLASHER AND BODY GROUND LH

        Tester Connection Condition Specified Condition
        N5-4 (B) - J29-2 (LL) Always Below 1 Ω
        N5-3 (E) - Body ground
        NS-4 (B) - Body ground Always 10 kΩ or higher
    2. for RH:
      1. Disconnect the M6 light connector.
      2. Disconnect the J29 relay connector.
        Fig 7: Identifying Outer Rear View Mirror Connector Terminals - RH
        G05160769Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      3. Measure the resistance according to the value(s) in the table below.

        Standard resistance 

        OUTER REAR VIEW MIRROR - TURN SIGNAL FLASHER AND BODY GROUND RH

        Tester Connection Condition Specified Condition
        M6-4 (B) - J29-8 (LR) Always Below 1 Ω
        M6-3 (E) - Body ground
        M6-4 (B) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

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