СИСТЕМА ECD, 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

Either of following conditions is met:

(1 trip detection logic)

  • Injector compensation code has not been registered after installing a new ECM.

  • DPF Deterioration Record has not been entered after installing a new ECM.

  • Injector compensation code

  • DPF Deterioration Record

Comes on DTC stored
Tip:

DPF Deterioration Record: DPF Deterioration Record means the ash accumulation volume in the DPF catalytic converter calculated by the ECM. If the ash accumulation volume in the DPF catalytic converter increases, the difference in pressure in front of and behind the DPF catalytic converter will increase. The difference in pressure in front of and behind the DPF catalytic converter is offset depending on the volume of accumulated ash.

Table 1. DTC Detection Drive Pattern
DTC No. DTC Detection Drive Pattern
P0603 Ignition switch ON
Note:
  • When an injector assembly is replaced, the new injector compensation code must be input into the ECM. When the ECM is replaced, all of the existing injector compensation codes must be input into the new ECM.

  • Injector compensation codes are 12-digit, alphanumeric values printed on the head of each injector assembly. If an incorrect injector compensation code is input into the ECM, the engine assembly may rattle or engine idling may become rough. In addition, engine failure may occur and the life of the engine may be shortened.

Tip:

When replacing the ECM with a new one, if the injector compensation codes are not entered, DTC P0603 will be stored.

  1. When replacing the ECM with a new one, input all learning value and codes into the new ECM as follows:

    1. Prior to replacing the ECM, use the GTS to read and save each learning value and codes from the original ECM.

      Click hereНажмите здесь

    2. After installing a new ECM, write the saved learning value and codes into the new ECM using the GTS.

      Click hereНажмите здесь

    3. Turn the ignition switch off and turn the GTS off.

    4. Wait for at least 30 seconds.

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

    6. Clear DTC P0603 stored in the ECM using the GTS.

      Click hereНажмите здесь

      Tip:
      • Each injector assembly has different fuel injection characteristics. In order to optimize the fuel injections, the ECM uses compensation codes to balance the different fuel injections between each injector assembly.

      • When you first turn ON the ignition switch after replacing the ECM or any of the injector assemblies, DTC P0603 is stored. If the ECM was replaced, the compensation codes for the injector assemblies must be registered to the new ECM. Manually clear the DTC upon completion of compensation code registration. If an injector assembly was replaced, the compensation code for the new injector assembly will need to be registered in the ECM.

      • If the "Learning Values Save" or "Learning Values Write" function has failed, manually input the injection compensation codes and the vehicle mileage using the "Injector Compensation" and "Vehicle Mileage Write" functions by following the instructions shown on the GTS display.

      • Additionally, when the DPF catalytic converter is replaced, DTC P0603 will not be output, but "DPF Deterioration Record Clear" must be performed using the GTS.

CAUTION / NOTICE / HINT

Tip:

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 (LEARNING VALUE AND CODES SAVE AND WRITE)

    1. Prior to replacing the ECM, use the GTS to read and save each learning vale and codes from the original ECM.

      Click hereНажмите здесь

    2. Replace the ECM.

      Click hereНажмите здесь

    3. After installing a new ECM, write the saved learning value and codes into the new ECM using the GTS.

      Click hereНажмите здесь

      Tip:

      If the "Learning Values Save" or "Learning Values Write" function has failed, input manually the injector compensation codes and the vehicle mileage using the "Injector Compensation" (Click here ) and "Vehicle Mileage Write" functions (Click here Нажмите здесь) by following the instructions shown on the GTS display.

      Result
      Proceed to
      NEXT
    NEXT
  2. CHECK LEARNING VALUE AND CODES

    1. Confirm that all of the learning value and codes are input correctly.

      Click hereНажмите здесь

      Result
      Proceed to
      NEXT
    NEXT
  3. 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 30 seconds or more.

    5. Turn the ignition switch to ON and wait for 1 second.

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

    7. Confirm that the DTC is not output again.

      Powertrain > Engine and ECT > Trouble Codes
      Result
      Proceed to
      NEXT
    NEXT

    END