DTC Troubleshooting

DTC Troubleshooting: P0603, P062F

DTC P0603:

PCM Internal Control Module Keep Alive Memory (KAM) Error ('06-08 models)

DTC P062F:

PCM Internal Control Module Keep Alive Memory (KAM) Error ('09-10 models)

NOTE:

- Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information Initial Inspection and Diagnostic Overview.
- Information marked with an asterisk (*) applies to '06-08 models.
- Information marked with a double asterisk (**) applies to '09-10 models.

1. Turn the ignition switch to ON (II).

2. Clear the DTC with the HDS.

3. Check for Pending or Confirmed DTCs with the HDS.

Is DTC P0603* (P062F)** indicated?

YES -

Go to step 4.

NO -

Intermittent failure, the system is OK at this time.�

4. Update the PCM if it does not have the latest software PCM Update, or substitute a known-good PCM Initial Inspection and Diagnostic Overview.

5. Check for Pending or Confirmed DTCs with the HDS.

Is DTC P0603* (P062F)** indicated?

YES -

If the PCM was updated, substitute a known-good PCM Initial Inspection and Diagnostic Overview, then recheck. If the PCM was substituted, go to step 1.

NO -

If the PCM was updated, troubleshooting is complete. If the PCM was substituted, replace the original PCM Service and Repair. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.�