ECD SYSTEM (w/ EGR Cooler Bypass Valve) MIL Circuit

DESCRIPTION

If the ECM detects a malfunction, the MIL illuminates. The ECM then records the DTC in its memory.

WIRING DIAGRAM

A01KHNEE04

INSPECTION PROCEDURE

Note

After replacing the ECM, the new ECM needs registration Click here and initialization Click here.

PROCEDURE


  1. CHECK MIL

    Tech Tips

    Use the table below to troubleshoot each problem symptom.

    Reference
    Condition Proceed to
    MIL remains on A
    MIL is not illuminated B

    B

    CHECK IF MIL ILLUMINATES Click here

    A

  2. CHECK IF MIL TURNS OFF


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON and turn the tester on.

    3. Select the following menus: Powertrain / Engine and ECT / DTC.

    4. Check if DTCs have been stored. Take notes if there are DTCs.

    5. Select the following menus: Powertrain / Engine and ECT / DTC / Clear.

    6. Clear DTCs. Click here

    7. Check if the MIL turns off.

      OK
      MIL turns off

    OK

    GO TO DTC CHART Click here

    NG

  3. CHECK HARNESS AND CONNECTOR


    1. Disconnect the E17 ECM connector.

    2. Turn the ignition switch to ON.

    3. Check that the MIL does not illuminate.

      OK
      MIL does not illuminate

    4. Reconnect the ECM connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ECM Click here

  4. CHECK IF MIL ILLUMINATES


    1. Check if the MIL illuminates when the ignition switch is turned to ON.

      OK
      MIL illuminates

    OK

    END

    NG

  5. CHECK THAT ENGINE STARTS


    1. Turn the ignition switch to ON.

    2. Start the engine.

      Result
      Result Proceed to
      Engine starts A

      Engine does not start*

      		B

      Tech Tips

      *: The intelligent tester cannot communicate with the ECM.


    B

    GO TO VC OUTPUT CIRCUIT Click here

    A

  6. CHECK COMBINATION METER ASSEMBLY (MIL CIRCUIT)

    OK
    Combination meter circuit is normal

    NG

    REPLACE COMBINATION METER ASSEMBLY Click here

    OK

    REPAIR OR REPLACE HARNESS OR CONNECTOR (COMBINATION METER ASSEMBLY - ECM)