P06CA GMC Code - Cylinder 6 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
- P06CA GMC indicates Cylinder 6 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 P06CA GMC 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 P06CA GMC?
- 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 P06CA GMC?
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 P06CA GMC 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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Information for Specific GMC Models
- P06CA 2014 GMC Sierra — Cylinder 6 Glow Plug Incorrect
- P06CA 2015 GMC Sierra — Cylinder 6 Glow Plug Incorrect
- P06CA 2016 GMC Sierra — Cylinder 6 Glow Plug Incorrect
- P06CA 2017 GMC Sierra — Cylinder 6 Glow Plug Incorrect
- P06CA 2018 GMC Sierra — Cylinder 6 Glow Plug Incorrect
Frequently Asked Questions about P06CA GMC Code
1. What are the common symptoms of OBDII code P06CA GMC (Cylinder 6 Glow Plug Incorrect)?
The common symptoms of this code may include rough idling, misfiring, loss of power, and the illumination of the Check Engine Light.
2. What are the possible causes of OBDII code P06CA GMC?
The possible causes of this code could be a faulty glow plug in cylinder 6, issues with the glow plug control module, wiring problems, or a bad connection.
3. How can I diagnose OBDII code P06CA GMC?
Diagnosing this code typically involves using an OBDII scanner to retrieve the specific fault code, testing the glow plug in cylinder 6 for proper function, checking the glow plug control module, and inspecting the wiring for any issues.
4. Can I continue driving with OBDII code P06CA GMC active?
It is not recommended to continue driving with this code active, as it can lead to further damage to the engine and other components. It is best to address the issue promptly.
5. What is the repair process for OBDII code P06CA GMC?
The repair process may involve replacing the faulty glow plug in cylinder 6, repairing or replacing any damaged wiring, or addressing any issues with the glow plug control module.
6. How much does it typically cost to fix OBDII code P06CA GMC?
The cost of fixing this code can vary depending on the extent of the problem, the labor rates in your area, and the cost of parts. It is advisable to get a diagnostic and repair estimate from a qualified mechanic.
7. Can I fix OBDII code P06CA GMC myself?
If you have the necessary tools, knowledge, and experience working on automotive systems, you may be able to address this code yourself. However, it is recommended to seek professional help if you are unsure.
8. Are there any preventive measures to avoid OBDII code P06CA GMC?
Regular maintenance of the glow plug system, including checking and replacing glow plugs as needed, can help prevent issues that may trigger this fault code.
9. How urgent is it to address OBDII code P06CA GMC?
While the severity can vary, it is generally advisable to address this code promptly to prevent potential engine damage and ensure optimal performance.
10. Can OBDII code P06CA GMC be triggered by other underlying issues?
Yes, other underlying issues such as fuel system problems, injector issues, or engine timing issues can sometimes trigger this fault code. It is important to conduct a thorough diagnosis to pinpoint the exact cause.
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