P0602high severityPowertrain
Control Module Programming Error
on 2001 Lexus GS 430 4.3L V8 · RWD
What this code 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
Repair notes
Reprogram PCM with correct calibration files.
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