P101C 2016 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 2016 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 2016 GMC Sierra Description
What are the Possible Causes of the DTC P101C 2016 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 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 P101C 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 P101C 2016 GMC Sierra Code
What does the OBDII code P101C mean on a 2016 GMC Sierra?
The code P101C indicates a high voltage issue in the Glow Plug Control Module Temperature Sensor 2 Circuit, which monitors temperature for proper engine operation.
What are the common symptoms of the P101C code?
Symptoms may include an illuminated check engine light, hard starting in cold weather, reduced engine performance, or rough idling.
What causes the P101C code to appear?
Possible causes include a faulty temperature sensor, damaged wiring or connectors in the circuit, a malfunctioning glow plug control module, or corrosion in electrical connections.
Can I drive my GMC Sierra with the P101C code?
While the truck may still be drivable, ignoring the code can lead to reduced engine performance or further damage over time, especially in cold weather conditions.
How do you diagnose the P101C code?
Diagnosis involves using an OBDII scanner to confirm the code, inspecting the wiring and connectors for damage or corrosion, and testing the temperature sensor and glow plug control module for proper operation.
How do you fix the P101C code?
Repairs may include replacing the faulty temperature sensor, repairing or replacing damaged wiring or connectors, or replacing the glow plug control module if necessary.
What is the Glow Plug Control Module Temperature Sensor 2?
This sensor monitors engine temperature to help the glow plug system operate effectively during cold starts and optimize engine performance.
Can a loose connection trigger the P101C code?
Yes, loose or corroded connections in the sensor circuit can cause high voltage readings and trigger the code.
Is the P101C code related to cold weather performance?
Yes, the glow plug system, including Temperature Sensor 2, is critical for starting and running the engine efficiently in cold weather.
How much does it cost to fix the P101C code?
Repair costs vary but typically range from $100 to $300, depending on whether the issue is with the sensor, wiring, or control module.
Discuss the causes and fixes for P101C 2016 GMC Sierra OBDII Code
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