METER / GAUGE SYSTEM Malfunction in Water Temperature Warning Light

DESCRIPTION

In this circuit, the combination meter assembly receives engine coolant temperature signals from the ECM via CAN communication. The combination meter assembly displays an engine coolant temperature warning based on the data received from the ECM.

WIRING DIAGRAM

A004JZ0E04
*1 CAN Communication Line
*2 Combination Meter Assembly

PROCEDURE


  1. CHECK FOR DTC (METER / GAUGE SYSTEM)


    1. Check if meter / gauge system DTCs are output ( Click here).

      OK
      DTCs are not output.

    NG

    GO TO DIAGNOSTIC TROUBLE CODE CHART Click here

    OK

  2. CHECK FOR DTC (SFI SYSTEM)


    1. Check if SFI system DTCs are output ( Click here).

      OK
      DTCs are not output.

    NG

    GO TO SFI SYSTEM Click here

    OK

  3. CHECK TELLTALE LIGHT (WATER TEMPERATURE WARNING (COLD))


    1. A004IFEE10
      Text In Illustration
      *1 Engine Coolant Temperature Sensor
      *2 ECM

      Disconnect the engine coolant temperature sensor connector.

    2. Turn the ignition switch to ON.

    3. Check the operating condition of the water temperature warning light.

      Result
      Result Proceed to
      Water temperature warning light (blue) is on. A
      Water temperature warning light (blue) is not on. B

    B

    REPLACE COMBINATION METER ASSEMBLY Click here

    A

  4. CHECK TELLTALE LIGHT (WATER TEMPERATURE WARNING (HOT))


    1. Disconnect the engine coolant temperature sensor connector.

    2. A004J0NE02
      Text In Illustration
      *1 Engine Coolant Temperature Sensor
      *2 ECM
      *3

      Front view of wire harness connector

      (to Engine Coolant Temperature Sensor)

      Connect terminals 1 and 2 of the engine coolant temperature sensor connector on the wire harness side.

    3. Turn the ignition switch to ON.

    4. Check the operating condition of the water temperature warning light.

      Result
      Result Proceed to
      Water temperature warning light (red) is on. A
      Water temperature warning light (red) is not on. B

    B

    REPLACE COMBINATION METER ASSEMBLY Click here

    A

  5. INSPECT ENGINE COOLANT TEMPERATURE SENSOR


    1. Inspect the engine coolant temperature sensor ( Click here).


    OK

    REPLACE ECM Click here

    NG

    REPLACE ENGINE COOLANT TEMPERATURE SENSOR Click here