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 part of the car that helps the engine start when it's cold. It's like when you try to turn on a flashlight, but it doesn't work because the battery connection is loose.
The P06BB code indicates an issue with the electrical circuit for the glow plug in cylinder 3, which helps the engine start in cold conditions.
The P06BB code is triggered when the Engine Control Module (ECM) detects a performance issue or an out-of-range condition in the glow plug circuit for cylinder 3. This could be due to a faulty glow plug, wiring issues, or a problem with the glow plug control module.
• Difficulty starting the engine in cold weather
• Illuminated check engine light
• Rough idling or misfiring when cold
• Faulty glow plug in cylinder 3
• Damaged wiring or connectors in the glow plug circuit
• Faulty glow plug control module
Glow Plug: A device used in diesel engines to heat the air in the cylinders to aid in starting the engine.
ECM: Engine Control Module, the computer that controls engine functions.
• Use an OBD-II scanner to confirm the code.
• Inspect the glow plug and wiring for cylinder 3.
• Test the glow plug control module.
• Replace the faulty glow plug in cylinder 3.
• Repair or replace damaged wiring or connectors.
• Replace the glow plug control module if necessary.
• OBD-II scanner
• Multimeter
• Socket set
$100 - $300
Moderate
• Ford F-250
• Chevrolet Silverado
• Dodge Ram 2500
• Regularly inspect glow plug connections.
• Ensure proper maintenance of the electrical system.
• Use high-quality replacement parts.
Engine Performance
• Have the vehicle inspected by a professional if you notice starting issues.
• Avoid using the vehicle in extremely cold conditions until repaired.
Glow plugs may be covered under powertrain warranty; check with the manufacturer.
Glow plug circuit issues have been common in diesel engines, especially in older models.
Moderate – Should be addressed to ensure reliable engine starting in cold weather.
Ignoring this code could lead to increased emissions and potential engine damage.
• Engine cold start
• Ambient temperature below 40°F
The glow plug for cylinder 3 is located on the engine block, typically near the third cylinder from the front.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to difficulty starting the engine in cold weather and potential engine damage.
Q: Can I drive with a P06BB code?
A: While you can drive, it's best to address the issue soon to avoid starting problems in cold weather.
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