Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that there's a problem with the part of the car that helps start the engine when it's cold. It's like when you need a warm blanket on a chilly night, but the blanket isn't working right.
The P06FA code indicates an issue with the performance of the second glow plug control module, which is responsible for heating the glow plugs in a diesel engine to aid in cold starting.
The glow plug control module 2 is responsible for controlling the operation of the glow plugs, which preheat the combustion chamber in a diesel engine. This code is triggered when the module's performance is not within the expected range, which could affect engine starting and performance in cold conditions.
• Difficulty starting the engine in cold weather
• Check Engine Light illuminated
• Reduced engine performance
• Faulty glow plug control module
• Wiring issues or poor electrical connections
• Failed glow plugs
Glow Plug: A device used to heat the air in a diesel engine's combustion chamber to aid in starting.
Control Module: An electronic component that manages the operation of other components in a vehicle.
• Inspect the glow plug control module and related wiring for damage.
• Test the glow plugs for proper operation.
• Check for any other related error codes.
• Replace the faulty glow plug control module.
• Repair or replace damaged wiring or connectors.
• Replace any failed glow plugs.
• OBD-II scanner
• Multimeter
• Basic hand tools
$200 - $500
Moderate
• Ford F-250
• Chevrolet Silverado 2500
• Dodge Ram 2500
• Regularly inspect glow plug system components.
• Ensure electrical connections are secure and free of corrosion.
• Perform routine engine maintenance.
Engine Performance
• Have the vehicle inspected by a professional if the Check Engine Light is on.
• Avoid driving in extremely cold conditions until the issue is resolved.
Check with your vehicle manufacturer for warranty coverage on emissions-related components.
Glow plug control module issues have been more prevalent in older diesel models, especially in colder climates.
Moderate – While the vehicle may still operate, performance is affected, especially in cold conditions.
Ignoring this issue may lead to increased emissions and potential engine damage.
• Cold start conditions
• Engine at ambient temperature
The glow plug control module is typically located in the engine compartment, near the glow plugs or mounted on the engine block.
Q: Can I drive with a P06FA code?
A: It's possible to drive, but you may experience starting issues and reduced performance, especially in cold weather.
Q: How do glow plugs work?
A: Glow plugs heat the air in the combustion chamber of a diesel engine to help start the engine in cold conditions.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.