Powertrain
generic / SAE
P0618
Alternative Fuel Control Module KAM Error
The control module for alternative fuel (CNG, LPG, hydrogen) reports a Keep-Alive-Memory error - persistent calibration values are corrupt or unreadable. Adaptive learning is reset.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number6 / 18
Possible causes
- KAM contents corrupted high
- Module software outdated, reflash may resolve low
- Supply voltage outside specification low
Symptoms
- Check engine light on
- Possible limp mode or no-start
- Multiple follow-up faults across modules
- Reset/relearn may be needed after repair
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–800 €
- Estimated time: 1–3 h
- Component: alternative fuel control module
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012