DTC P0600: PCM Serial Communication Failure

NOTE:  Before you troubleshoot, review the general troubleshooting information - Refer to: HOW TO TROUBLESHOOT THE FUEL AND EMISSIONS SYSTEMS or How to Troubleshoot the CVT System(CVT) .

DTC (PGM-FI)

1. Problem verification:

   - 1. Turn the vehicle to the ON mode.

   - 2. Clear the DTC with the HDS.

   - 3. Turn the vehicle to the OFF (LOCK) mode.

   - 4. Start the engine, and let it idle 5 seconds or more.

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

   DTC Description	Confirmed DTC	Pending DTC	Freeze Frame
   P0600 PCM Serial Communication Failure

   Is DTC P0600 indicated?

   YES 

   The failure is duplicated. Update the PCM if it does not have the latest software, or substitute a known-good PCM , then recheck. If DTC P0600 goes away and the PCM was updated, troubleshooting is complete. If DTC P0600 goes away and the PCM was substituted, replace the original PCM .

   NO 

   Intermittent failure, the system is OK at this time. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.