P06C6 2016 Chevrolet Silverado Code - Cylinder 2 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
- P06C6 2016 Chevrolet Silverado indicates Cylinder 2 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 P06C6 2016 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 P06C6 2016 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 P06C6 2016 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 P06C6 2016 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 P06C6 2016 Chevrolet Silverado Code
1. What does the OBDII code P06C6 mean on a 2016 Chevrolet Silverado?
P06C6 indicates that the Engine Control Module (ECM) has detected an issue with the performance or operation of the glow plug in cylinder 2.
2. What are the common symptoms of code P06C6 on a 2016 Chevrolet Silverado?
Symptoms may include difficulty starting in cold weather, reduced engine performance, an illuminated check engine light, and rough idling.
3. What causes the P06C6 code to appear on a 2016 Chevrolet Silverado?
Common causes include a faulty cylinder 2 glow plug, damaged wiring or connectors, a malfunctioning glow plug control module, or corrosion in the electrical circuit.
4. Can I drive my 2016 Chevrolet Silverado with the P06C6 code?
While the truck may still run, driving with this code can lead to poor cold-start performance and potential long-term engine damage, especially in colder climates. It’s best to address it promptly.
5. How do I diagnose the P06C6 code on my 2016 Chevrolet Silverado?
Diagnosis typically involves checking the glow plug and its wiring for damage, inspecting the glow plug control module, and using a multimeter to test electrical continuity in the circuit.
6. How do I fix code P06C6 on a 2016 Chevrolet Silverado?
Repairs may include replacing the cylinder 2 glow plug, repairing or replacing damaged wiring or connectors, cleaning corrosion, or replacing the glow plug control module if faulty.
7. How much does it cost to fix the P06C6 code on a 2016 Chevrolet Silverado?
Repair costs can vary, but replacing a glow plug typically costs $100-$200, including parts and labor. Additional costs may apply if further repairs are needed.
8. Is the P06C6 code a common issue on the 2016 Chevrolet Silverado?
Glow plug issues are not uncommon on diesel engines, especially as they age. Regular maintenance can help prevent this problem.
9. What happens if I ignore the P06C6 code on my 2016 Chevrolet Silverado?
Ignoring the code can lead to poor cold-weather starting, increased emissions, reduced fuel efficiency, and potential damage to other engine components.
10. Can a bad battery cause the P06C6 code on a 2016 Chevrolet Silverado?
A weak or failing battery can contribute to glow plug issues by not providing sufficient voltage to the glow plug system, especially during cold starts.
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