P0624 Fault Code

Fuel Cap Lamp Control Circuit

• What does that mean?
• Symptoms
• Causes
• Solutions

The P0624 fault code relates to an issue with the Fuel Cap Lamp Control Circuit. This circuit is responsible for monitoring the status of the fuel cap, and it alerts the driver if the fuel cap is not secured properly. An illuminated fuel cap warning light on the dashboard indicates a potential problem.

What are the symptoms of the P0624 code?

Symptoms associated with the P0624 fault code can include:

• Illumination of the fuel cap warning light on the dashboard
• Decreased fuel efficiency due to potential vapor leaks
• Possible trouble codes related to emissions may also occur if the problem persists

What causes the P0624 code?

Common causes of the P0624 code include:

• A damaged or faulty fuel cap
• Wiring issues or short circuits in the fuel cap circuit
• A malfunctioning fuel cap sensor
• Issues with the Engine Control Module (ECM) that leads to erroneous readings

How to fix P0624?

To resolve the P0624 fault code, it is recommended to follow these steps:

• Inspect the fuel cap for damage or cracks and replace it if necessary
• Check the wiring and connectors associated with the fuel cap circuit for any signs of wear, corrosion, or loose connections
• Test the fuel cap sensor for proper functionality and replace it if found to be defective
• Clear the fault codes and conduct a road test to ensure the issue is resolved