Engine-CodesGeneric – P0624

P0624 Code - Fuel Cap Lamp Control Circuit

Quick Answer

The P0624 diagnostic trouble code (DTC) refers to a malfunction in the fuel cap lamp control circuit. Common causes include Faulty fuel cap sensor, Damaged wiring in the fuel cap lamp control circuit, Blown fuse related to the fuel cap lamp. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0624 indicates Fuel Cap Lamp Control Circuit.
Common causes
Common causes include Faulty fuel cap sensor, Damaged wiring in the fuel cap lamp control circuit, Blown fuse related to the fuel cap lamp.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 22, 2024
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Code P0624 Description

The P0624 diagnostic trouble code (DTC) refers to a malfunction in the fuel cap lamp control circuit. This code is typically found in vehicles equipped with a fuel cap warning light that alerts the driver if the fuel cap is not properly secured. The fuel cap lamp control circuit is responsible for monitoring the status of the fuel cap and triggering the warning light if necessary.

OBDII Code P0624 - Fuel Cap Lamp Control Circuit
P0624 Code - Fuel Cap Lamp Control Circuit

Common Causes of P0624

  1. Faulty fuel cap sensor
  2. Damaged wiring in the fuel cap lamp control circuit
  3. Blown fuse related to the fuel cap lamp
  4. Malfunctioning control module
  5. Loose or damaged connections in the circuit

Symptoms of P0624

  1. Illumination of the fuel cap warning light on the dashboard
  2. Inaccurate or intermittent warnings about the fuel cap status
  3. Decreased fuel efficiency
  4. Engine performance issues
  5. Increased emissions

How to Fix P0624

  1. Begin by visually inspecting the fuel cap and its connections to ensure they are secure and undamaged.
  2. Check the wiring and connections in the fuel cap lamp control circuit for any signs of damage or corrosion. Repair or replace as needed.
  3. Test the fuel cap sensor and replace if faulty.
  4. Check and replace any blown fuses related to the fuel cap lamp.
  5. If the issue persists, diagnose the control module for any malfunctions and replace if necessary.

Cost to Fix P0624

The typical repair costs for addressing a P0624 code can vary depending on the specific cause of the issue. On average, the parts and labor for this repair could range from $100 to $300. It's important to note that the actual cost may be higher or lower based on factors such as the location of the repair shop, the make and model of the vehicle, and the type of engine. Additionally, diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically falling between $80 and $150. It's recommended to obtain quotes from local shops for a more accurate estimate.

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Code P0624 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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