METER / GAUGE SYSTEM Engine Coolant Temperature Receiver Gauge Malfunction

DTC Code DTC Name
Engine Coolant Temperature Receiver Gauge Malfunction

DESCRIPTION

In this circuit, the combination meter assembly receives engine coolant temperature signals from the ECM using the CAN communication line. The combination meter assembly displays the engine coolant temperature, which is calculated based on the data received from the ECM.

WIRING DIAGRAM

E200122E17

CAUTION / NOTICE / HINT

Note:

When replacing the combination meter assembly, make sure to replace it with a new one.

PROCEDURE

  1. CHECK CAN COMMUNICATION SYSTEM

    1. Check if a CAN communication system DTC is output.

      for LHD:Click here

      for RHD:Click here

    Result

    Proceed to

    CAN communication system DTC is not output

    CAN communication system DTC is output (for LHD)

    CAN communication system DTC is output (for RHD)
    CAN communication system DTC is output (for LHD)

    GO TO CAN COMMUNICATION SYSTEM

    Click here

    CAN communication system DTC is output (for RHD)

    GO TO CAN COMMUNICATION SYSTEM

    Click here

    CAN communication system DTC is not output

  2. CHECK SFI SYSTEM

    1. Check if a SFI system DTC is output.

      SFI system (w/ EGR System):Click here

      SFI system (w/o EGR System):Click here

      SFI system (Canister Pump Module):Click here

      Powertrain > Engine and ECT > Trouble Codes

    Result

    Proceed to

    DTC is not output

    SFI system DTC is output (w/ EGR System)

    SFI system DTC is output (w/o EGR System)

    SFI system DTC is output (w/ Canister Pump Module)
    SFI system DTC is output (w/ EGR System)

    GO TO SFI SYSTEM

    Click here

    SFI system DTC is output (w/o EGR System)

    GO TO SFI SYSTEM

    Click here

    SFI system DTC is output (w/ Canister Pump Module)

    GO TO SFI SYSTEM

    Click here

    DTC is not output

  3. PERFORM ACTIVE TEST USING GTS (WATER TEMPERATURE METER OPERATION)

    1. Using the GTS, perform the Active Test.

      Click here

      Body Electrical > Combination Meter > Active Test

      Tester Display

      Measurement Item

      Control Range

      Diagnostic Note

      Water Temperature Meter Operation

      Engine coolant temperature receiver gauge

      OFF, LOW, NORMAL or HIGH

      -

      Body Electrical > Combination Meter > Active Test

      Tester Display

      Water Temperature Meter Operation

      OK

      Engine coolant temperature receiver gauge indication is normal.

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE COMBINATION METER ASSEMBLY

    Click here

    OK

  4. READ VALUE USING GTS (COOLANT TEMPERATURE, COOLANT TEMP)

    1. Using the GTS, read the Data List.

      Click here

      Body Electrical > Combination Meter > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Coolant Temperature

      Engine coolant temperature

      0 to 127.5°C (0 to 261.5°F)

      After warming up: 75 to 100°C (167 to 212°F)

      -

      Powertrain > Engine > Data List

      Tester Display

      Measurement Item

      Range

      Normal Condition

      Diagnostic Note

      Coolant Temp

      Engine coolant temperature

      Min.: -40°C (-40°F), Max: 140°C (284°F)

      60 to 90°C (140 to 194°F): After warming up engine

      -

      Body Electrical > Combination Meter > Data List

      Tester Display

      Coolant Temperature

      Powertrain > Engine > Data List

      Tester Display

      Coolant Temp
      Tip:

      • When the Data List values of the ECUs match, an internal malfunction of the ECM is suspected.

      • When the Data List values of the ECUs do not match, a signal output error of the ECM or an internal malfunction of the combination meter assembly is suspected.

    Result

    Proceed to

    The Data List values of the ECUs do not match.

    The Data List values of the ECUs match.
    The Data List values of the ECUs do not match.

    REPLACE COMBINATION METER ASSEMBLY

    Click here

    The Data List values of the ECUs match.

  5. CHECK COMBINATION METER ASSEMBLY

    1. Replace the combination meter assembly with a new or normally functioning one.

      Click here

    2. Check that the operation of the engine coolant temperature receiver gauge returns to normal.

      OK

      The operation of the engine coolant temperature receiver gauge returns to normal.

    Result

    Proceed to

    OK

    NG
    OK

    END (COMBINATION METER ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE ECM

    Click here