Do you have access to Mitchell1 Prodemand? If you are willing to share user/password (we can pay $250), please get in contact with us ASAP: email operation-charm [[at]] tuta.io or click to submit anonymously. (I know, we said we wouldn't ask any more...but it's important!)
P1702
DTC P0602 / P1702: Control Module Programming Error / Internal Control Module Check Sum ErrorSystem Description
Internal control module is installed in ECK
DTC Detecting Condition and Trouble Area
DTC Confirmation Procedure
1. Clear DTC.
2. Start engine and run it at idle if possible.
3. Check DTC.
DTC Troubleshooting