P06CC 2016 GMC Sierra Code - Cylinder 8 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
- P06CC 2016 GMC Sierra indicates Cylinder 8 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 P06CC 2016 GMC Sierra 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 P06CC 2016 GMC Sierra?
- 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 P06CC 2016 GMC Sierra?
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 P06CC 2016 GMC Sierra 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 P06CC 2016 GMC Sierra Code
1. What does the OBDII code P06CC mean on a 2016 GMC Sierra?
P06CC indicates a "Cylinder 8 Glow Plug Incorrect" fault, meaning there is an issue with the glow plug or its circuit for cylinder 8.
2. What are the symptoms of code P06CC in a 2016 GMC Sierra?
Common symptoms include difficulty starting the engine in cold weather, rough idling, reduced fuel efficiency, and possibly an illuminated check engine light.
3. What causes the P06CC code in a 2016 GMC Sierra?
Typical causes include a faulty glow plug for cylinder 8, damaged wiring or connectors in the glow plug circuit, or a malfunctioning glow plug control module.
4. Can you drive a 2016 GMC Sierra with the P06CC code?
While the vehicle may still run, driving with this code can lead to poor performance in cold weather and may cause further damage to the engine or emission components if left unaddressed.
5. How do you diagnose the P06CC code on a 2016 GMC Sierra?
Diagnosis involves scanning for additional codes, visually inspecting the glow plug and wiring for damage, testing the resistance of cylinder 8’s glow plug, and checking the glow plug control module.
6. How is the P06CC code fixed on a 2016 GMC Sierra?
Repairs may include replacing the cylinder 8 glow plug, repairing damaged wiring or connectors, or replacing the glow plug control module if it is defective.
7. What tools are needed to fix the P06CC code in a 2016 GMC Sierra?
You’ll need an OBDII scanner, a digital multimeter to test electrical circuits, and basic hand tools to replace the glow plug or repair wiring.
8. How much does it cost to fix the P06CC code on a 2016 GMC Sierra?
The cost depends on the cause but typically ranges from $100 to $300 for parts and labor, with glow plug replacement being the most common repair.
9. Can a faulty glow plug for cylinder 8 damage my engine?
A faulty glow plug itself won’t directly damage the engine, but prolonged cold starts and incomplete combustion can lead to carbon buildup and increased wear on other components.
10. How can I prevent the P06CC code from recurring in my 2016 GMC Sierra?
Regular maintenance, timely inspection of the glow plugs, and addressing wiring issues promptly can help prevent this code from returning.
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