AutoCodes – Generic – P0624

P0624 Code - Fuel Cap Lamp Control Circuit

Quick Answer

The Engine Control Module (ECM) turn the Fuel Cap Warning light ON and OFF and monitors when is turned ON. Common causes include Fuel cap circuit bulb faulty, Fuel cap circuit open or short circuit condition, Fuel cap circuit poor electrical connection. 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 Fuel cap circuit bulb faulty, Fuel cap circuit open or short circuit condition, Fuel cap circuit poor electrical connection.
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.

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Code Popularity 9,861

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 01, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P0624 Description

The Engine Control Module (ECM) turn the Fuel Cap Warning light ON and OFF and monitors when is turned ON. The ECM sets the OBDII code when fails to light.

OBDII Code P0624 - Fuel Cap Lamp Control Circuit - AutoCodes.com — P0624 Code - Fuel Cap Lamp Control Circuit

What does this mean?

What are the Possible Causes of the DTC P0624?

Fuel cap circuit bulb faulty
Fuel cap circuit open or short circuit condition
Fuel cap circuit poor electrical connection
Instrument cluster faulty

How to Fix the DTC P0624?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0624 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0624 code?

Need more information on how to fix the P0624 code? Get Access to Factory Service Manuals

Need Help with the Code?

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Information for Specific Makes

P0624 Hyundai — Fuel Cap Lamp Control Circuit
P0624 KIA — Fuel Cap Lamp Control Circuit

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.