ECD SYSTEM, Diagnostic DTC:P0603

DTC Code DTC Name
P0603 Internal Control Module Keep Alive Memory (KAM) Error

DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P0603 Internal Control Module Keep Alive Memory (KAM) Error

Injector calibration value not appropriate.

(3 trip detection logic)

  • Injector compensation code

  • ECM

 Does not come on DTC stored

CAUTION / NOTICE / HINT

Note

When replacing the ECM and/or injector assembly, the ECM needs registration and initialization.

Click here

Tech Tips


  • When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the GTS. Then after installing the new ECM, perform all of the initialization/registrations for the "Learning Values Write" function by following the instructions shown on the GTS display.

  • Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.

PROCEDURE


  1. PERFORM REGISTRATION (INJECTOR COMPENSATION CODE)


    1. Register the injector compensation code.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  2. CHECK WHETHER DTC OUTPUT RECURS (DTC P0603)


    1. Connect the GTS to the DLC3

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

    3. Clear the DTCs.


      Powertrain > Engine and ECT > Clear DTCs

    4. Turn the ignition switch off and wait for 60 seconds or more [A].

    5. Perform road test [B].

    6. Repeat [A] and [B] for the number of trips detected.

    7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.


      Powertrain > Engine and ECT > Trouble Codes

    8. Confirm that the DTC is not output again.

      Result
      Proceed to
      OK
      NG

    OK

    END

    NG

  3. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  4. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the GTS to the DLC3.

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

    3. Clear the DTCs.


      Powertrain > Engine and ECT > Clear DTCs

    4. Turn the ignition switch off and wait for 60 seconds or more [A].

    5. Perform road test [B].

    6. Repeat [A] and [B] for the number of trips detected.

    7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.


      Powertrain > Engine and ECT > Trouble Codes

    8. Confirm that the DTC is not output again.

      Result
      Proceed to
      NEXT

    NEXT

    END