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On-Vehicle Inspection

WARNING: This page is about a different car, the 2003 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT TURN SIGNAL FLASHER CIRCUIT 
    1. Disconnect the connector from turn signal flasher and inspect the connector on wire harness side as shown in TURN SIGNAL FLASHER CIRCUIT TESTER CONNECTION AND SPECIFIED CONDITION .
      Fig 1: Identifying Turn Signal Flasher Circuit Connector
      G02859507Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TURN SIGNAL FLASHER CIRCUIT TESTER CONNECTION AND SPECIFIED CONDITIONS

      Tester Connection Condition Specified Condition
      7 - Ground Constant Continuity
      1 - Ground Turn Ignition Switch ON Battery Positive Voltage
      1 - Ground Turn Ignition Switch ON No Voltage
      4 - Ground Constant Battery Positive Voltage
    2. Connect the connector to turn signal flasher and inspect the wire harness side connector from the back side, as shown in Fig 2.
      Fig 2: Turn Signal Flasher Circuit Tester Connection And Specified Condition Chart
      G02859508Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. ILLUMINATED ENTRY SYSTEM OPERATION CHECK 
    1. The light that is lit in the illuminated entry system is explained below:
      NOTE:

      Reference:

      Key cylinder light, room light.

    2. Turn the ignition switch OFF open all the doors, and set the driver door in the lock condition.
    3. Unlock the driver door and open any one of the doors, and check that the room light goes on. Close the door and check that the room light goes off in about 15 seconds.
    4. Turn the ignition switch ON and open and close any one of the doors. Check that the room light immediately goes off.
    5. Turn ignition switch OFF.
    6. Open and close any one of the doors to light the room light. Before the room light goes off in about 15 seconds, turn the ignition switch ON. Check that the room light goes off immediately.
    7. Turn ignition switch OFF.
    8. Open and close any one of the doors to light the room light. Before the light goes off in about 15 seconds, lock the driver door. Check that the light goes off immediately.
  3. LIGHT AUTO CUT SYSTEM OPERATION CHECK 
    1. Turn ignition switch ON.
    2. Close the driver door.
    3. Turn the light control switch to TAIL or HEAD.
    4. Check that the headlight or taillight go off at once when turn ignition switch OFF and open the driver door.
  4. AUTOMATIC LIGHT CONTROL SYSTEM OPERATION CHECK (AUTO ON) 
    1. Turn ignition switch ON.
    2. Turn the light control switch to AUTO.
    3. Gradually cover the top of the sensor.
    4. Verify that the accessory lights and the headlights turn ON.
  5. AUTOMATIC LIGHT CONTROL SYSTEM OPERATION CHECK (AUTO OFF) 
    1. Gradually expose the sensor.
    2. Verify that the headlights and the accessory lights turn OFF.
  6. INSPECT LIGHT-OFF CONDITION 
    1. Turn the ignition switch ON.
    2. Light auto ON:

      Gradually cover the top of the sensor.

    3. Verify that the lights will go out when light control switch position is OFF or the area surrounding the sensor gets bright or open the driver's door while the ignition switch OFF.
  7. INSPECT LIGHT-ON CONDITION 
    1. Open the driver's door while the ignition switch is OFF.
    2. Turn the light control switch to AUTO leaving the door open and cover the top on the sensor, and verify that the lights go on when the ignition switch is turned ON.
  8. INSPECT AUTOMATIC LIGHT CONTROL SENSOR CIRCUIT 
    1. Disconnect the connector from the sensor and inspect the connector on the wire harness side, as shown in AUTOMATIC LIGHT CONTROL SENSOR CIRCUIT TESTER CONNECTION AND SPECIFIED CONDITION (1 OF 2) the chart.
      Fig 3: Identifying Automatic Light Control Sensor Circuit Connector
      G02859509Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      AUTOMATIC LIGHT CONTROL SENSOR CIRCUIT SPECIFICATIONS (1 OF 2)

      Tester Connection Condition Specified Condition
      3 - Ground Constant Continuity
      1 - Ground Ignition Switch LOCK Or ACC No Voltage
      1 - Ground Ignition Switch ON Battery Positive Voltage
      4 - Ground Ignition Switch LOCK Or ACC No Voltage
      4 - Ground Ignition Switch ON Battery Positive Voltage
    2. Disconnect the connector from the sensor and inspect the connector on the wire harness side, as shown in AUTOMATIC LIGHT CONTROL SENSOR CIRCUIT SPECIFICATIONS (2 OF 2) .
      NOTE:
      • Ignition switch ON
      • Light control switch OFF.
      • Vehicle's surrounding are bright.
      Fig 4: Disconnecting Connector From Sensor
      G02859510Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    AUTOMATIC LIGHT CONTROL SENSOR CIRCUIT SPECIFICATIONS (2 OF 2)

    Tester Connection Condition Specified Condition
    3 - Ground Constant Continuity
    1 - Ground Ignition Switch LOCK Or ACC No Voltage
    1 - Ground Ignition Switch ON Battery Positive Voltage
    4 - Ground Ignition Switch LOCK Or ACC No voltage
    4 - Ground Ignition switch ON Battery Positive Voltage
  9. INSPECT AUTOMATIC LIGHT CONTROL SENSOR CIRCUIT 
    1. Remove the body ECU with connectors still connected.
    2. Inspect the wire harness side connector from the back side, as shown in Fig 6.
      Fig 5: Identifying Automatic Light Control Sensor Connector Wire Harness Side
      G02859511Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Fig 6: Automatic Light Control Sensor Connector Terminals Specified Condition Chart
      G02859512Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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