Powertrain
generic / SAE
P0624
Fuel Cap Lamp Control Circuit
The control circuit for the fuel cap warning lamp reports a fault. The ECM cannot drive the indicator that warns of an open or loose fuel cap.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number6 / 24
Possible causes
- Lamp circuit open or shorted high
- Instrument cluster fault 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: easy
- DIY: possible
- Estimated cost: 40–300 €
- Estimated time: 0.3–1.5 h
- Component: fuel cap lamp
- Component: lamp wiring
- MIL / check engine light
Sources
References
sae:J2012