DTC P0603: ECM Internal Control Module Keep Alive Memory (KAM) Error ('06-08 models); DTC P062F: ECM Internal Control Module Keep Alive Memory (KAM) Error ('09-11 models)
NOTE:
- Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).
- Information marked with an asterisk (*) applies to '06-08 models.
- Information marked with a double asterisk (* *) applies to '09-11 models.
- Turn the ignition switch to ON (II).
- Clear the DTC with the HDS.
- Check for Pending or Confirmed or DTCs with the HDS.
Is DTC P0603* (P062F)* indicated?
YES -Go to step 4.
NO -Intermittent failure, the system is OK at this time.
- Update the ECM if it does not have the latest software (see ECM UPDATE ), or substitute a known- good ECM (see SUBSTITUTING THE ECM ).
- Check for Pending or Confirmed or DTCs with the HDS.
Is DTC P0603* (P062F)* indicated?
YES -If the ECM was updated, substitute a known- good ECM (see SUBSTITUTING THE ECM ), then recheck. If the ECM was substituted, go to step 1.
NO -If the ECM was updated, troubleshooting is complete. If the ECM was substituted, replace the original ECM (see ECM REPLACEMENT ). If any other Pending or Confirmed or DTCs are indicated, go to the INDICATED DTC'S TROUBLESHOOTING .