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On-Vehicle Inspection

WARNING: This page is about a different car, the 2007 Toyota Tacoma. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT TURN SIGNAL FLASHER ASSEMBLY (w/o Daytime Running Light System) 
    1. Check the power source circuit and ground circuit.
      1. Remove the turn signal flasher assembly from the instrument panel junction block assembly.
      2. Measure the voltage and check the results in accordance with the value(s) in POWER SOURCE CIRCUIT AND GROUND CIRCUIT (VOLTAGE) .
        Fig 1: Checking Power Source Circuit And Ground Circuit
        G04412499Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard 

        POWER SOURCE CIRCUIT AND GROUND CIRCUIT (VOLTAGE)

        Tester Connection Condition Specified Condition
        IA-4 - Body ground Ignition switch ON 10 to 14 V
        IA-4 - Body ground Ignition switch OFF 0 V
        IB-4 - Body ground Always 10 to 14 V
      3. Measure the resistance and check the result in accordance with the value(s) in POWER SOURCE CIRCUIT AND GROUND CIRCUIT (RESISTANCE) .

        Standard 

        POWER SOURCE CIRCUIT AND GROUND CIRCUIT (RESISTANCE)

        Tester Connection Condition Specified Condition
        IH-18 - Body ground Always Below 1
    2. Check the output operation signal.
      1. Install the turn signal flasher assembly onto the instrument panel junction block assembly.
      2. Measure the voltage and check the results in accordance with the value(s) in OUTPUT OPERATION SIGNAL (VOLTAGE) .
        Fig 2: Identifying Instrument Panel Junction Block Connector Terminal
        G04412500Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard 

        OUTPUT OPERATION SIGNAL (VOLTAGE)

        Tester Connection Condition Specified Condition
        I1-11 - Body ground Hazard switch OFF -> ON 0 V -> 10 to 14 V (60 to 120 times per minute)
        I1-11 - Body ground Turn signal switch (right turn) OFF -> ON 0 V -> 10 to 14 V (60 to 120 times per minute)
        I1-12 - Body ground Hazard switch OFF -> ON 0 V -> 10 to 14 V (60 to 120 times per minute)
        I1-12 - Body ground Turn signal switch (left turn) OFF -> ON 0 V -> 10 to 14 V (60 to 120 times per minute)
        IJ-8 - Body ground Turn signal switch (left turn) OFF -> ON 10 to 14 V -> 0 V
        IJ-18 - Body ground Turn signal switch (right turn) OFF -> ON 10 to 14 V -> 0 V
        IJ-11 - Body ground Hazard switch OFF -> ON 10 to 14 V -> 0 V
  2. INSPECT TURN SIGNAL FLASHER ASSEMBLY (w/ Daytime Running Light System) 
    1. Check the power source circuit and ground circuit.
      1. Disconnect the connector from the turn signal flasher assembly.
      2. Measure the voltage and check the results in accordance with the value(s) in POWER SOURCE CIRCUIT AND GROUND CIRCUIT (VOLTAGE) .
        Fig 3: Checking Power Source Circuit And Ground Circuit
        G04412501Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard 

        POWER SOURCE CIRCUIT AND GROUND CIRCUIT (VOLTAGE)

        Tester Connection Condition Specified Condition
        1 - Body ground Ignition switch ON 10 to 14 V
        1 - Body ground Ignition switch OFF 0 V
        6 - Body ground Always 10 to 14 V
      3. Measure the resistance and check the result in accordance with the value(s) in POWER SOURCE CIRCUIT AND GROUND CIRCUIT (RESISTANCE) .

        Standard 

        POWER SOURCE CIRCUIT AND GROUND CIRCUIT (RESISTANCE)

        Tester Connection Condition Specified Condition
        9 - Body ground Always Below 1
    2. Check the output operation signal.
      1. Connect the connector to the turn signal flasher assembly.
      2. Measure the voltage and check the results in accordance with the value(s) in OUTPUT OPERATION SIGNAL (VOLTAGE) .
        Fig 4: Checking Output Operation Signal
        G04412502Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        Standard 

        OUTPUT OPERATION SIGNAL (VOLTAGE)

        Tester Connection Condition Specified Condition
        2 - Body ground Hazard switch OFF -> ON 0 V -> 10 to 14 V (60 to 120 times per minute)
        2 - Body ground Turn signal switch (right turn) OFF -> ON 0 V -> 10 to 14 V (60 to 120 times per minute)
        2 - Body ground Turn signal switch (right turn) ON -> OFF 10 to 14 V (60 to 120 times per minute) -> 10 to 14 V
        3 - Body ground Hazard switch OFF -> ON 0 V -> 10 to 14 V (60 to 120 times per minute)
        3 - Body ground Turn signal switch (right turn) OFF -> ON 0 V -> 10 to 14 V (60 to 120 times per minute)
        4 - Body ground Hazard switch OFF -> ON 0 V -> 10 to 14 V (60 to 120 times per minute)
        4 - Body ground Turn signal switch (left turn) OFF -> ON 0 V -> 10 to 14 V (60 to 120 times per minute)
        4 - Body ground Turn signal switch (left turn) ON -> OFF 10 to 14 V (60 to 120 times per minute) -> 10 to 14 V
        5 - Body ground Hazard switch OFF -> ON 0 V -> 10 to 14 V (60 to 120 times per minute)
        5 - Body ground Turn signal switch (left turn) OFF -> ON 0 V -> 10 to 14 V (60 to 120 times per minute)
        7 - Body ground Turn signal switch (left turn) OFF -> ON 10 to 14 V -> 0 V
        8 - Body ground Turn signal switch (right turn) OFF -> ON 10 to 14 V -> 0 V
        10 - Body ground Hazard switch OFF -> ON 10 to 14 V -> 0 V
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