P0602
PowertrainPcm Internalhigh severityControl Module Programming Error
What P0602 Means
The PCM is not properly programmed or calibration is missing.
Symptoms
- Check Engine Light
- Various driveability issues
- Incorrect operation
Common Causes
- PCM not programmed after replacement
- Incomplete flash/reprogramming
- Wrong calibration file
Diagnostic Steps
- Verify PCM part number matches application
- Reprogram PCM with correct calibration
- Check for TSBs
Where to start: Reprogram PCM with correct calibration files.
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