October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

DTC P0601 - Internal Control Module Memory Check Sum Error DTC P0603 - Internal Control Module Keep Alive Memory Error

Connect scan tool to Data Link Connector (DLC). Clear DTCs. Turn ignition off. Start engine if possible. If DTC P0601 or P0603 resets, replace PCM. Retest system.