METER / GAUGE SYSTEM (for 1KD-FTV) Engine Coolant Temperature Receiver Gauge Malfunction

WIRING DIAGRAM

A01KEY5E02

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT

    A01KHEVE04
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Engine Coolant Temperature Sensor)

    1. Disconnect the W2 connector with engine coolant temperature sensor.

    2. Check the meter needle conditions.

      OK
      Wire connection Condition Specified Condition
      1 - 2 Short circuit (Ignition Switch ON) The needle indicates above "H"
      All the lines are disconnected Open circuit (Ignition Switch ON) The needle indicates below "C"

    3. Reconnect the connector.


    NG

    CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM) Click here

    OK

    REPLACE ENGINE COOLANT TEMPERATURE SENSOR

  2. CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM)

    A01KG9RE03
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Engine Coolant Temperature Sensor)
    *b

    Rear view of wire harness connector

    (to ECM)

    1. Disconnect the W2 engine coolant temperature sensor connector.

    2. Disconnect the E6 ECM connector.

    3. Measure the resistance.

      Standard resistance
      Tester Connection Specified condition
      W2-2 - THW (E6-19) Below 1 Ω
      W2-1 - E2 (E6-28) Below 1 Ω
      W2-2 or THW (E6-19) - Body ground 10 kΩ or higher
      W2-1 or E2 (E6-28) - Body ground 10 kΩ or higher

    4. Reconnect the connectors.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. CHECK HARNESS AND CONNECTOR (ECM - COMBINATION METER ASSEMBLY)

    A01KIMKE04
    Text in Illustration
    *a

    Rear view of wire harness connector

    (to Combination Meter Assembly)
    *b

    Rear view of wire harness connector

    (to ECM)

    1. Disconnect the C13 combination meter assembly connector.

    2. Disconnect the E7 ECM connector.

    3. Measure the resistance.

      Standard resistance
      Tester Connection Specified condition
      C13-18 - THWO (E7-2) Below 1 Ω
      C13-18 or THWO (E7-2) - Body ground 10 kΩ or higher

    4. Reconnect the connectors.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE COMBINATION METER ASSEMBLY