IMA System (MCM)

DTC Troubleshooting: P0602 (91)

DTC P0602 (91):

MCM Programming Error

NOTE:

- To verify this is the appropriate troubleshooting procedure, jump the SCS with the HDS and read the flash code, or change the HDS setup to show HM codes and read the HM code.
- Before you troubleshoot, record all freeze data, and review the general troubleshooting information Initial Inspection and Diagnostic Overview.
- Do not turn the ignition switch to ACC (I) or to LOCK (0) while updating the MCM. If you do, the MCM can be damaged.

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

2. Clear the DTC with the HDS Initial Inspection and Diagnostic Overview.

3. Do the MCM update procedure Testing and Inspection.

4. Check for IMA system Pending or Confirmed DTCs with the HDS.

Is DTC P0602 (91) indicated?

YES -

Replace the original MCM MCM Replacement, then go to step 1.

NO -

The update is complete. If any other Pending or Confirmed DTCs are indicated, go to the indicated DTC's troubleshooting.�