P0603 – EEP ROM Malfunction MMC Colt



FUNCTION

  • To check whether the information such as the idle learned value and so on is stored in the memory of engine-ECU.

  • TROUBLE JUDGMENT

  • Ignition switch is in “ON” position.
  • The latest learned data that was flashed while the ignition switch was in “OFF” position are not stored correctly.

  • PROBABLE CAUSE

  • Failed engine-ECU

  • DIAGNOSIS PROCEDURE

    STEP 1. M.U.T.-III diagnosis code

  • Reconfirmation of diagnosis code.
  • Q. Is the diagnosis code set?

    Author: admin