P067B 2015 Chevrolet Silverado Code - Cylinder 4 Glow Plug Control Circuit High Voltage
Quick Answer
The diagnostic trouble code P067B for a 2015 Chevrolet Silverado indicates an issue with the glow plug control circuit in cylinder 4, specifically a high voltage condition. Common causes include Faulty glow plug in cylinder 4, Damaged glow plug control module, Wiring issues such as a short circuit or open circuit. 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
- P067B 2015 Chevrolet Silverado indicates Cylinder 4 Glow Plug Control Circuit High Voltage.
- Common causes
- Common causes include Faulty glow plug in cylinder 4, Damaged glow plug control module, Wiring issues such as a short circuit or open circuit.
- 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 P067B 2015 Chevrolet Silverado Description
The diagnostic trouble code P067B for a 2015 Chevrolet Silverado indicates an issue with the glow plug control circuit in cylinder 4, specifically a high voltage condition. Glow plugs are essential components in diesel engines that help with cold starts by heating up the combustion chamber. When the control circuit for the glow plug in cylinder 4 is experiencing high voltage, it can lead to various performance issues in the vehicle.
Common Causes of P067B 2015 Chevrolet Silverado
- Faulty glow plug in cylinder 4.
- Damaged glow plug control module.
- Wiring issues such as a short circuit or open circuit.
- Malfunctioning engine control module (ECM).
- Corrosion or poor connections in the glow plug circuit.
Symptoms of P067B 2015 Chevrolet Silverado
- Hard starting, especially in cold weather.
- Rough idling or engine vibrations.
- Misfires or hesitation during acceleration.
- Decreased fuel efficiency.
- Engine stalling or lack of power.
How to Fix P067B 2015 Chevrolet Silverado
- Begin by diagnosing the specific cause of the high voltage condition in the glow plug control circuit.
- Inspect the glow plug in cylinder 4 for any signs of damage or malfunction and replace if necessary.
- Check the glow plug control module and wiring for any faults, repairing or replacing as needed.
- Test the engine control module (ECM) to ensure it is functioning correctly, replacing it if deemed faulty.
- Clear the diagnostic trouble code from the vehicle's computer system and test the vehicle to ensure the issue has been resolved.
Cost to Fix P067B 2015 Chevrolet Silverado
The typical repair costs for addressing a cylinder 4 glow plug control circuit high voltage issue can vary depending on the specific cause and the extent of the repair needed. Parts such as a new glow plug, control module, or ECM can range from $50 to $200 each, with labor costs typically ranging from $100 to $300. Overall, the total repair cost could range from $200 to $800 or more, depending on the severity of the issue and the rates charged by the auto repair shop. It is advisable to consult with a trusted mechanic or dealership for a more accurate cost estimate based on your vehicle's make and model. Keep in mind that labor rates can vary based on location, shop rates, and the complexity of the repair.
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