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 the computer in charge of helping the car start when it's cold is having trouble remembering its settings.
The Glow Plug Control Module 2 is responsible for managing the glow plugs, which help start the engine in cold conditions. A memory checksum error indicates that the module's memory data is not matching expected values, possibly due to corruption.
The Glow Plug Control Module 2 uses a checksum to verify the integrity of its stored memory data. If the checksum does not match the expected value, it indicates a potential corruption or error in the module's memory, which can affect its operation.
• Difficulty starting the engine in cold conditions
• Check Engine Light illuminated
• Reduced engine performance
• Faulty Glow Plug Control Module 2
• Corrupted software or firmware
• Electrical issues such as poor connections or damaged wiring
Glow Plug: A device used to heat the air in a diesel engine to help start the engine in cold conditions.
Checksum: A value used to verify the integrity of data stored in a computer system.
• Perform a diagnostic scan to confirm the code.
• Inspect the wiring and connections to the Glow Plug Control Module 2.
• Check for software updates or reflash the module if necessary.
• Replace the Glow Plug Control Module 2 if faulty.
• Repair or replace any damaged wiring or connectors.
• Reprogram or update the module's software.
• OBD-II scanner
• Multimeter
• Diagnostic software tool
$200 - $600
Moderate
• Ford F-250
• Chevrolet Silverado
• Dodge Ram 2500
• Regular maintenance and software updates
• Ensure good electrical connections
• Protect the vehicle from extreme cold conditions
Engine Performance
• Have the vehicle inspected by a professional mechanic.
• Avoid using the vehicle in extremely cold conditions until repaired.
Check with the vehicle manufacturer as the Glow Plug Control Module may be covered under warranty if the vehicle is within the warranty period.
This code has been associated with diesel engines that rely on glow plugs for cold starts. It is more common in colder climates where glow plug operation is critical.
Moderate – While the vehicle may still operate, starting issues in cold weather can become problematic.
Driving with a malfunctioning glow plug control module can lead to starting issues, which may leave you stranded in cold conditions. Address this code promptly.
• Engine cold start
• Ambient temperature below freezing
The Glow Plug Control Module 2 is typically located near the engine or in the engine compartment, often mounted on or near the firewall.
Q: Can I drive with a P06FB code?
A: While you may still be able to drive, starting the vehicle in cold weather may become difficult. It's best to address the issue promptly.
Q: How do I reset the P06FB code?
A: Fix the underlying issue first, then use an OBD-II scanner to clear the code. If the problem persists, the code will return.
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.