P0618moderate severityPowertrain
Alternative Fuel Control Module KAM Error
on 2014 Audi Q7 3.0L Supercharged V6 · AWD
What this code means
The alternative fuel control module detected a keep-alive memory error. Stored adaptive data may be lost or corrupted.
Symptoms
- Check engine light on
- Poor drivability after restart
- Loss of learned values
Common causes
- Faulty control module
- Weak or failing battery power
- Poor module ground
- Internal memory fault
Diagnostic steps
- Check module power and ground
- Test battery and charging system
- Clear codes and retest
- Replace control module if needed
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