P0624
Fuel Cap Lamp Control Circuit
P0624 is an OBD-II diagnostic trouble code meaning: Fuel Cap Lamp Control Circuit. Common causes: burnt out fuel tank cap indicator lamp, open or short circuit in the lamp control circuit. Estimated repair cost: $2–22.
Symptoms
- The Check Engine light comes on
- Fuel cap indicator does not work
- Or the indicator is constantly on
- No engine problems
- There may be no warning when the tank lid is open
Causes
- Burnt out fuel tank cap indicator lamp
- Open or short circuit in the lamp control circuit
- Instrument panel unit malfunction
- Corrosion in control circuit connector
- Internal ECU output fault
How to Fix
- Check the fuel cap indicator on the dashboard
- Measure the voltage at the lamp control connector
- Check the wiring from the ECU to the instrument panel
- Reset error and check for recurrence
- If the lamp and wiring are in good working order - diagnostics of the computer or instrument panel
Related codes
Error P0624 by Vehicle Brand
FAQ
What does the P0624 code mean?
P0624 is an OBD-II diagnostic trouble code that indicates: Fuel Cap Lamp Control Circuit
What causes a P0624 error code?
The most common causes of P0624 include: Burnt out fuel tank cap indicator lamp; Open or short circuit in the lamp control circuit; Instrument panel unit malfunction; Corrosion in control circuit connector.
How do I fix a P0624 diagnostic trouble code?
To fix P0624: Check the fuel cap indicator on the dashboard. Measure the voltage at the lamp control connector. Check the wiring from the ECU to the instrument panel. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0624?
Do not drive — repair immediately
How much does it cost to fix P0624?
The estimated repair cost for P0624 is $2–22. Actual cost depends on your vehicle, location, and labor rates.
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