[Iggie]

Generic OBD Error Code Details for P0603
Internal Control Module Keep Alive Memory (KAM) Error

What does this mean?

OBD Code P0603refers to:
Battery voltage is supplied to the ECM/PCM even when the ignition switch is turned OFF for the ECM/PCM memory function of the DTC memory, the air-fuel ratio feedback compensation value memory, the idle air volume learning value memory, etc.

Possible sumptoms of OBD code P0603

- Engine Light ON (or Service Engine Soon Warning Light) - Engine may not start

Possible causes of OBD code P0603

- Loose or poor battery terminal connection - Low battery charge - ECM/PCM power supply circuit is open or shorted - ECM/PCM Programing - Faulty ECM/PCM The Error code is generally activated on detection of the following conditions: Indicates the ECM/PCM has experienced an internal memory fault.

Possible Solutions

- Recharge battery - Resecure and clean battery terminal connection - Reprogram ECM/PCM - Replaced ECM/PCM