P0601

DTC P0601: Internal Control Module Memory Check Sum Error / Control Module Programming Error / Control Module Performance

System Description
Internal control module is installed in ECM.

DTC Detecting Condition And Trouble Area:

DTC Detecting Condition and Trouble Area

DTC Confirmation Procedure
1. Connect scan tool to DLC with ignition switch turned OFF.
2. Turn ON ignition switch and clear DTC, pending DTC and freeze frame data by using scan tool.
3. Check DTC by using scan tool.

Step 1 - 2:

DTC Troubleshooting
Substitute a known-good ECM and recheck.