P0601

DTC P0601: Internal Control Module Memory Check Sum Error

System Description
Internal control module is installed in ECM (PCM).

DTC Detecting Condition and Trouble Area:

DTC Confirmation Procedure
1. Connect scan tool to DLC with ignition switch OFF.
2. Turn ON ignition switch and clear DTC, pending DTC and freeze frame data by using scan tool.
3. Start engine and run it at idle if possible.
4. Check DTC and pending DTC by using scan tool.

DTC Troubleshooting
Substitute a known-good ECM (PCM) and recheck.