P0607Control Module Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P0607 is the general 'module not working correctly' code, used when no specific memory or processor part is named. Ford sets it for wrong instruction execution or too many processor resets in engine and transmission modules; the Ford diesel after five communication errors with its monitoring chip within 20 s (a complete loss of that link is P0600). GM introduced it in the engine module only recently: the 2025 tables evaluate the results of built-in self-tests and error-correction counters, with the lamp in the first trip. Resets can cause brief stumbling or stalling, and some systems switch to limp mode. Software updates fixed it on the Alfa Romeo Giulia 2.9 V6 and Ram 6.7 Cummins, so check bulletins first. The code alone does not say which module set it – the scan tool shows whether it is the engine, transmission, brake or body module.
- What you may notice
- Check engine light on
- Limp mode or reduced power
- Brief stumbling or stalling (module reset)
- Several implausible codes at once
- Likely causes
- LikelyFaulty module software (update available)
- PossibleInternal module defect (processor, clock, monitoring chip)
- PossibleLow voltage, voltage dips or a poor ground or supply at the module
- RareElectrical interference, e.g. from a faulty alternator or ignition
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €100 – €1,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.