P06C7 2017 Chevrolet Silverado Code - Cylinder 3 Glow Plug Incorrect
Quick Answer
n the diesel engine, air alone is compressed in the cylinder. Common causes include Faulty cylinder #1 glow plug, Cylinder #1 glow plug harness is open or shorted, Cylinder #1 glow plug circuit poor electrical connection. 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
- P06C7 2017 Chevrolet Silverado indicates Cylinder 3 Glow Plug Incorrect.
- Common causes
- Common causes include Faulty cylinder #1 glow plug, Cylinder #1 glow plug harness is open or shorted, Cylinder #1 glow plug circuit poor electrical connection.
- 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.
Code P06C7 2017 Chevrolet Silverado Description
Control of the glow plugs is accomplished by the glow plug control module. The nominal voltage for the glow plugs is 5.4 volts. When the ignition is turned On, the glow plug control module applies 7.2 V for 2.2 s, then 5.7 V for 0.8 s, and then 5.4 V until 1200°C (2192°F) is reached. The maximum voltage of the system is 10 V. While the engine is running the voltage will vary between 4.7 - 10 V when in closed loop control to maintain a glow plug temperature that ranges from 1150° - 1180°C (2102° - 2156°F). The temperature and the power consumption are controlled between the Engine Control Module (ECM) and the glow plug control module within a wide range to suit the engine's pre-heating requirements. Each glow plug is energized individually. This capability yields more optimum heat times for the glow plugs, thus pre - glow times can be kept to a minimum for a short wait to crank times and maximum glow plug durability. A Diagnostic Trouble Code (DTC) will be set if the Glow Plug resistance is not within a calibrated range.
What are the Possible Causes of the DTC P06C7 2017 Chevrolet Silverado?
- Faulty cylinder #1 glow plug
- Cylinder #1 glow plug harness is open or shorted
- Cylinder #1 glow plug circuit poor electrical connection
- Faulty Glow Plug Control Module
How to Fix the DTC P06C7 2017 Chevrolet Silverado?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P06C7 2017 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P06C7 2017 Chevrolet Silverado Code
What does the OBDII code P06C7 mean on a 2017 Chevrolet Silverado?
Code P06C7 indicates "Cylinder 3 Glow Plug Incorrect," meaning there’s an issue with the glow plug in cylinder 3, such as it being faulty, improperly installed, or not receiving the correct signal.
What are the symptoms of code P06C7 on a 2017 Chevrolet Silverado?
Symptoms may include difficulty starting in cold weather, rough idling, reduced engine performance, and an illuminated check engine light.
What causes the P06C7 code to appear on a 2017 Chevrolet Silverado?
Common causes include a faulty glow plug, damaged glow plug wiring, a malfunctioning glow plug control module, or a poor electrical connection.
Can I drive my 2017 Chevrolet Silverado with the P06C7 code active?
While the vehicle may still run, driving with this code can lead to starting issues, especially in cold weather, and may eventually cause further engine problems.
How do I diagnose the P06C7 code on a 2017 Chevrolet Silverado?
Start by visually inspecting the glow plug and its wiring for damage. Use a multimeter to test the glow plug's resistance and verify signals from the glow plug control module to cylinder 3.
How do I fix the P06C7 code on a 2017 Chevrolet Silverado?
Repairs may involve replacing the faulty glow plug, repairing damaged wiring, cleaning or replacing corroded connectors, or replacing the glow plug control module if it’s defective.
How much does it cost to fix code P06C7 on a 2017 Chevrolet Silverado?
The cost varies depending on the issue, but replacing a glow plug typically costs $50–$150, while replacing the glow plug control module may cost $300–$500, including labor.
Could a weak battery cause the P06C7 code on my 2017 Chevrolet Silverado?
Yes, a weak or failing battery can lead to insufficient power for the glow plug system, potentially triggering the P06C7 code.
How can I prevent the P06C7 code from reoccurring on my 2017 Chevrolet Silverado?
Regular maintenance, including inspecting glow plugs, wiring, and the battery, can help prevent this code. Address any starting issues or electrical problems promptly.
Is the P06C7 code related to other engine problems?
Yes, unresolved issues with the glow plug system can lead to poor combustion, reduced fuel efficiency, and potential engine damage over time.
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