P067C 2015 GMC Sierra Code - Cylinder 5 Glow Plug Control Circuit Low Voltage
Quick Answer
The P067C diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates an issue with the glow plug control circuit for cylinder 5. Common causes include Faulty glow plug in cylinder 5, Defective glow plug control module, Wiring or electrical connection issues in the glow plug control 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
- P067C 2015 GMC Sierra indicates Cylinder 5 Glow Plug Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty glow plug in cylinder 5, Defective glow plug control module, Wiring or electrical connection issues in the glow plug control 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 P067C 2015 GMC Sierra Description
The P067C diagnostic trouble code (DTC) for a 2015 GMC Sierra indicates an issue with the glow plug control circuit for cylinder 5. Glow plugs are used in diesel engines to assist with cold starting by heating the combustion chamber. In this case, the control circuit for the glow plug in cylinder 5 is experiencing low voltage, which can lead to difficulties starting the engine, reduced fuel efficiency, increased emissions, and potential engine damage if left unresolved.
Common Causes of P067C 2015 GMC Sierra
- Faulty glow plug in cylinder 5.
- Defective glow plug control module.
- Wiring or electrical connection issues in the glow plug control circuit.
- Corrosion or damage to the connectors related to the glow plug system.
- Issues with the engine control module (ECM) or related sensors.
Symptoms of P067C 2015 GMC Sierra
- Difficulties starting the engine, especially in cold weather.
- Rough idling or misfiring when the engine is running.
- Reduced fuel efficiency and increased emissions.
- Engine performance issues, such as lack of power or acceleration.
- Illumination of the check engine light on the dashboard.
How to Fix P067C 2015 GMC Sierra
- Begin by performing a thorough visual inspection of the glow plug in cylinder 5 and the surrounding wiring and connectors.
- Test the glow plug and control module using a multimeter to check for proper resistance and voltage.
- If the glow plug or control module is found to be faulty, replace the defective component with a new one.
- Repair any damaged wiring or connectors in the glow plug control circuit.
- Clear the DTC from the vehicle's ECM using a scan tool to reset the system and ensure proper operation.
Cost to Fix P067C 2015 GMC Sierra
The typical repair costs for addressing a P067C code can vary depending on the specific components that need to be replaced and the labor required for the repair. In general, replacing a glow plug or control module can range from $100 to $300 per component, not including labor costs. The total repair cost, including parts and labor, can range from $200 to $600 or more, depending on the extent of the issue and the rates charged by the repair shop. It is recommended to consult with a qualified mechanic or repair shop to obtain a more accurate estimate based on the specific circumstances of your vehicle. Additionally, factors such as location, vehicle make and model, and engine type can also influence the final repair costs.
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