P067D 2014 GMC Sierra Code - Cylinder 5 Glow Plug Control Circuit High Voltage
Quick Answer
n the diesel engine, air alone is compressed in the cylinder. Common causes include Faulty cylinder #5 glow plug, Cylinder #5 glow plug harness is open or shorted, Cylinder #5 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
- P067D 2014 GMC Sierra indicates Cylinder 5 Glow Plug Control Circuit High Voltage.
- Common causes
- Common causes include Faulty cylinder #5 glow plug, Cylinder #5 glow plug harness is open or shorted, Cylinder #5 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 P067D 2014 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.
What are the Possible Causes of the DTC P067D 2014 GMC Sierra?
- Faulty cylinder #5 glow plug
- Cylinder #5 glow plug harness is open or shorted
- Cylinder #5 glow plug circuit poor electrical connection
- Faulty Glow Plug Control Module
How to Fix the DTC P067D 2014 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 P067D 2014 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 P067D 2014 GMC Sierra Code
1. What are the common symptoms of OBDII code P067D in a 2014 GMC Sierra related to Cylinder 5 Glow Plug Control Circuit High Voltage?
- Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and the illumination of the Check Engine light.
2. What are the possible causes of OBDII code P067D in a 2014 GMC Sierra indicating a high voltage in the glow plug control circuit of cylinder 5?
- Possible causes may include a faulty glow plug, damaged wiring, poor electrical connections, or a malfunctioning glow plug control module.
3. How can I diagnose OBDII code P067D in my 2014 GMC Sierra related to Cylinder 5 Glow Plug Control Circuit High Voltage?
- Diagnosis typically involves using a scan tool to retrieve the trouble code, inspecting the glow plug and its circuit, checking for damaged wiring, and testing the glow plug control module.
4. What are the repair options for resolving OBDII code P067D in a 2014 GMC Sierra with a high voltage issue in the glow plug control circuit of cylinder 5?
- Repair options may include replacing the faulty glow plug, repairing damaged wiring, ensuring proper electrical connections, or replacing the glow plug control module if necessary.
5. Can I continue driving my 2014 GMC Sierra with OBDII code P067D related to Cylinder 5 Glow Plug Control Circuit High Voltage?
- It is not recommended to drive the vehicle with this issue as it can lead to further damage to the engine and other components. Prompt diagnosis and repair are advised.
6. How much does it typically cost to repair OBDII code P067D in a 2014 GMC Sierra indicating a high voltage in the glow plug control circuit of cylinder 5?
- Repair costs can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.
7. Are there any preventive measures I can take to avoid OBDII code P067D in my 2014 GMC Sierra related to Cylinder 5 Glow Plug Control Circuit High Voltage?
- Regular maintenance, such as checking the glow plugs and their connections, can help prevent issues that might trigger this trouble code.
8. Can weather conditions affect the occurrence of OBDII code P067D in a 2014 GMC Sierra due to Cylinder 5 Glow Plug Control Circuit High Voltage?
- Extreme weather conditions, especially cold temperatures, can put additional strain on the glow plug system and potentially lead to issues triggering this code.
9. How long does it typically take to repair OBDII code P067D in a 2014 GMC Sierra related to Cylinder 5 Glow Plug Control Circuit High Voltage?
- The repair time can vary depending on the exact cause of the issue and the extent of the repair needed, but it may take a few hours to complete.
10. Is it possible to reset the Check Engine light after repairing OBDII code P067D in a 2014 GMC Sierra indicating a high voltage in the glow plug control circuit of cylinder 5?
- Yes, once the repair is completed, the Check Engine light can be reset using a scan tool to clear the trouble code and turn off the warning light.
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