Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the glow plug in cylinder number 9 of the engine. Glow plugs are like little heaters that help the engine start, especially when it's cold.
The engine control module (ECM) has detected an issue with the glow plug circuit in cylinder 9, which could be due to a malfunctioning glow plug or an issue with the wiring or connectors.
The P06CD code indicates that the ECM has found a discrepancy in the electrical circuit related to the glow plug in cylinder 9. This could be due to an open circuit, short circuit, or incorrect resistance in the glow plug or its associated wiring.
• Difficulty starting the engine, especially in cold weather
• Rough idle
• Check Engine Light illuminated
• Faulty glow plug in cylinder 9
• Damaged wiring or connectors in the glow plug circuit
• Faulty glow plug control module
Glow Plug: A device used to heat the air in a diesel engine to aid starting.
ECM: Engine Control Module, the computer that controls engine functions.
• Use an OBD-II scanner to confirm the P06CD code.
• Visually inspect the glow plug and its wiring for damage.
• Test the resistance of the glow plug with a multimeter.
• Replace the faulty glow plug in cylinder 9.
• Repair or replace damaged wiring or connectors.
• Replace the glow plug control module if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Ford F-250
• Chevrolet Silverado
• Ram 2500
• Regularly inspect glow plugs and wiring.
• Perform routine maintenance checks.
• Use high-quality fuel to prevent deposits.
Engine Performance
• Have a professional mechanic inspect the vehicle.
• Avoid using the vehicle in extremely cold conditions until repaired.
Check with the manufacturer for specific warranty coverage on glow plugs and related components.
Glow plug issues are common in diesel engines, especially in colder climates where starting is more challenging.
Moderate – Should be addressed soon to avoid starting issues.
Ignoring this issue could lead to starting problems and increased emissions.
• Ensure the engine is cold before testing.
• Disconnect the battery before inspecting electrical components.
Cylinder 9 glow plug is located on the engine block, typically on the passenger side for V8 engines.
Q: Can I drive with a P06CD code?
A: It's possible to drive, but it may be difficult to start the engine, especially in cold weather.
Q: How long do glow plugs last?
A: Glow plugs typically last around 100,000 miles but can fail sooner depending on conditions.
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