P068C 2015 Chevrolet Silverado Code - Cylinder 7 Glow Plug Control Circuit Low Voltage
Quick Answer
The P068C diagnostic trouble code (DTC) in a 2015 Chevrolet Silverado indicates a problem with the Cylinder 7 Glow Plug Control Circuit experiencing low voltage. Common causes include Faulty glow plug in cylinder 7, Wiring issues or loose connections in the glow plug circuit, Defective glow plug control module. 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
- P068C 2015 Chevrolet Silverado indicates Cylinder 7 Glow Plug Control Circuit Low Voltage.
- Common causes
- Common causes include Faulty glow plug in cylinder 7, Wiring issues or loose connections in the glow plug circuit, Defective glow plug control module.
- 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 P068C 2015 Chevrolet Silverado Description
The P068C diagnostic trouble code (DTC) in a 2015 Chevrolet Silverado indicates a problem with the Cylinder 7 Glow Plug Control Circuit experiencing low voltage. Glow plugs are essential components in diesel engines that help with cold starts by heating the air in the combustion chamber. When the engine control module (ECM) detects that the voltage in the control circuit for the glow plug in cylinder 7 is below the specified range, it triggers this code. This issue can lead to difficulties starting the engine, reduced fuel efficiency, and increased emissions.
Common Causes of P068C 2015 Chevrolet Silverado
- Faulty glow plug in cylinder 7
- Wiring issues or loose connections in the glow plug circuit
- Defective glow plug control module
- ECM software malfunction
- Corrosion or damage to the electrical connections
Symptoms of P068C 2015 Chevrolet Silverado
- Hard starting or extended cranking time
- Rough idle or misfiring
- Decreased engine performance
- Increased fuel consumption
- Illumination of the Check Engine Light
How to Fix P068C 2015 Chevrolet Silverado
- Diagnose the issue: Use a scan tool to retrieve the DTC and perform a visual inspection of the glow plug in cylinder 7 and its wiring for any visible damage.
- Test the glow plug: Check the resistance of the glow plug with a multimeter to determine if it is functioning correctly.
- Inspect wiring and connections: Ensure there are no loose or damaged wires or connections in the glow plug circuit.
- Replace faulty components: If the glow plug is defective, replace it with a new one. Additionally, replace any damaged wiring or connectors.
- Clear codes and test: Clear the DTC using the scan tool and start the vehicle to verify that the issue has been resolved.
Cost to Fix P068C 2015 Chevrolet Silverado
The cost of repairing a Cylinder 7 Glow Plug Control Circuit Low Voltage issue in a 2015 Chevrolet Silverado can vary depending on the extent of the damage and the cost of parts and labor. On average, the cost of replacing a glow plug can range from $50 to $150 per plug, with additional costs for labor. The total repair cost could range from $150 to $400, including parts and labor. It is advisable to consult with a professional mechanic or dealership for a more accurate estimate based on your specific vehicle and location.
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