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

WIRING DIAGRAM

A01KEY5E03

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK ENGINE COOLANT TEMPERATURE SENSOR CIRCUIT

    A01KFWIE03
    Text in Illustration
    *a

    Front view of wire harness connector

    (to Engine Coolant Temperature Sensor)

    1. Disconnect Connector W2 of the engine coolant temperature sensor.

    2. Check the meter needle conditions.

      OK
      Wire Connection Switch Condition Specified Condition
      W2-1 - W2-2 Ignition switch ON The needle indicates above "H"
      All the lines are disconnected Ignition switch ON The needle indicates below "C"

    3. Reconnect the connector of the engine coolant temperature sensor.


    NG

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

    OK

    REPLACE ENGINE COOLANT TEMPERATURE SENSOR Click here

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

    A01KG9RE04
    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 Connector W2 of the engine coolant temperature sensor.

    2. Disconnect Connector E6 of the ECM.

    3. Measure the resistance according to the value(s) in the table below.

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

    4. Reconnect the connector of the engine coolant temperature sensor.

    5. Reconnect the connector of the ECM.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

    A01KIAZE04
    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 Connector C13 of the combination meter assembly.

    2. Disconnect Connector E7 of the ECM.

    3. Measure the resistance according to the value(s) in the table below.

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

    4. Reconnect the connector of the combination meter assembly.

    5. Reconnect the connector of the ECM.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE COMBINATION METER ASSEMBLY Click here