P101C 2018 GMC Sierra Code - Glow Plug Control Module Temperature Sensor 2 Circuit High Voltage
Quick Answer
The Glow Plug Control Module (GPCM) has the ability to perform internal diagnostics for the temperature sensor circuit. Common causes include Faulty Glow Plug Control Module (GPCM), Glow Plug Control Module harness is open or shorted, Glow Plug Control Module 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
- P101C 2018 GMC Sierra indicates Glow Plug Control Module Temperature Sensor 2 Circuit High Voltage.
- Common causes
- Common causes include Faulty Glow Plug Control Module (GPCM), Glow Plug Control Module harness is open or shorted, Glow Plug Control Module 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 P101C 2018 GMC Sierra Description
What are the Possible Causes of the DTC P101C 2018 GMC Sierra?
- Faulty Glow Plug Control Module (GPCM)
- Glow Plug Control Module harness is open or shorted
- Glow Plug Control Module circuit poor electrical connection
How to Fix the DTC P101C 2018 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 P101C 2018 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.
Need more information about the P101C 2018 GMC Sierra code?
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Frequently Asked Questions about P101C 2018 GMC Sierra Code
1. What are the common symptoms of OBDII code P101C in a 2018 GMC Sierra related to the Glow Plug Control Module Temperature Sensor 2 Circuit High Voltage?
The common symptoms include the Check Engine Light illuminating on the dashboard, reduced engine performance, and potential difficulties starting the vehicle.
2. What are the possible causes of OBDII code P101C in a 2018 GMC Sierra?
Possible causes of this code can include a faulty glow plug control module, a malfunctioning temperature sensor, wiring issues, or a poor electrical connection.
3. How can I diagnose the Glow Plug Control Module Temperature Sensor 2 Circuit High Voltage issue in my 2018 GMC Sierra?
To diagnose this issue, you can use an OBDII scanner to read the specific fault code, visually inspect the wiring and connections related to the sensor, and test the sensor's resistance and voltage.
4. Can I continue driving my 2018 GMC Sierra with OBDII code P101C active?
It's not recommended to drive with this code active, as it can lead to further engine problems and potential safety issues. It's best to address the underlying cause as soon as possible.
5. How can I repair OBDII code P101C in my 2018 GMC Sierra?
The repair process may involve replacing the faulty glow plug control module, temperature sensor, or repairing any damaged wiring or connections. It's advisable to consult a professional mechanic for an accurate diagnosis and repair.
6. Are there any DIY tips for troubleshooting OBDII code P101C in a 2018 GMC Sierra?
You can start by checking the sensor's connections and wiring for any visible damage or corrosion. Additionally, ensure the sensor is receiving the correct voltage and resistance values as per the manufacturer's specifications.
7. Can extreme weather conditions affect the Glow Plug Control Module Temperature Sensor 2 Circuit in a 2018 GMC Sierra?
Yes, extreme weather conditions, especially cold temperatures, can put additional strain on the glow plug system, potentially leading to issues with the temperature sensor circuit.
8. Will resetting the OBDII code P101C in my 2018 GMC Sierra make the problem go away permanently?
Simply resetting the code may temporarily turn off the Check Engine Light, but if the underlying issue causing the fault code is not addressed, the code is likely to reappear.
9. Is it necessary to replace the Glow Plug Control Module Temperature Sensor 2 Circuit components if OBDII code P101C is triggered in a 2018 GMC Sierra?
Depending on the diagnostic results, it may be necessary to replace the faulty components to resolve the issue and prevent further engine problems. Consult a mechanic for a proper assessment.
10. How important is it to address OBDII code P101C promptly in a 2018 GMC Sierra?
It's crucial to address this code promptly to prevent potential damage to the engine and ensure the vehicle operates efficiently. Ignoring the issue may lead to more severe problems down the road.
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