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Engine-Codes – GMC – P101E 2016 GMC Sierra

P101E 2016 GMC Sierra Code - Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage

Quick Answer

The P101E diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to the Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage. Common causes include Faulty temperature sensor, Damaged wiring or connectors in the circuit, Malfunctioning glow plug control module. 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
P101E 2016 GMC Sierra indicates Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage.
Common causes
Common causes include Faulty temperature sensor, Damaged wiring or connectors in the circuit, Malfunctioning glow plug control module.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P101E 2016 GMC Sierra Description

The P101E diagnostic trouble code (DTC) for a 2016 GMC Sierra refers to the Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage. This code indicates that there is a high voltage condition detected in the temperature sensor circuit of the glow plug control module. The glow plug control module is responsible for managing the glow plugs in a diesel engine, which are used to preheat the combustion chamber for easier cold starts. The temperature sensor monitors the temperature of the glow plug control module to ensure optimal performance.

OBDII Code P101E 2016 GMC Sierra - Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage
P101E 2016 GMC Sierra Code - Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage

Common Causes of P101E 2016 GMC Sierra

  1. Faulty temperature sensor.
  2. Damaged wiring or connectors in the circuit.
  3. Malfunctioning glow plug control module.
  4. Issues with the engine's electrical system.
  5. Corrosion or moisture in the sensor circuit.

Symptoms of P101E 2016 GMC Sierra

  1. Difficulty starting the engine, especially in cold weather.
  2. Reduced engine power or acceleration.
  3. Decreased fuel efficiency.
  4. Engine misfires or rough idling.
  5. Illumination of the Check Engine Light on the dashboard.

How to Fix P101E 2016 GMC Sierra

  1. Begin by diagnosing the specific cause of the high voltage condition in the temperature sensor circuit using a diagnostic scanner.
  2. Inspect the temperature sensor, wiring, and connectors for any signs of damage or corrosion. Replace any faulty components.
  3. Test the glow plug control module to ensure it is functioning properly. Replace if necessary.
  4. Clear the DTC from the vehicle's computer using the diagnostic scanner.
  5. Test drive the vehicle to verify that the issue has been resolved and that the Check Engine Light does not reappear.

Cost to Fix P101E 2016 GMC Sierra

The typical repair costs for addressing a P101E code on a 2016 GMC Sierra can vary depending on the specific cause of the issue. Parts such as a new temperature sensor or glow plug control module can range from $50 to $200, while labor costs can add an additional $100 to $300. Overall, the total repair cost could range from $150 to $500. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P101E 2016 GMC Sierra Code

1. What does the OBDII code P101E mean on a 2016 GMC Sierra?

P101E indicates a problem with the Glow Plug Control Module Temperature Sensor 3 Circuit, specifically detecting a high voltage condition.

2. What are the common symptoms of the P101E code?

Symptoms may include difficulty starting the engine in cold weather, a check engine light, reduced engine performance, or erratic operation of the glow plug system.

3. What causes the P101E code to appear?

Common causes include a faulty Glow Plug Control Module, a damaged or shorted temperature sensor, wiring issues in the circuit, or corrosion at the connectors.

4. Can I drive my 2016 GMC Sierra with a P101E code?

Driving with a P101E code is not recommended, especially in cold temperatures, as the glow plug system may not operate properly, leading to starting issues or poor engine performance.

5. How do I diagnose the P101E code?

Start by inspecting the wiring and connections for damage or corrosion, then test the Glow Plug Control Module Temperature Sensor 3 for proper operation using a multimeter. A professional scan tool may be required for further diagnosis.

6. How can the P101E code be fixed?

Repairs may involve replacing the faulty Glow Plug Control Module Temperature Sensor 3, repairing or replacing damaged wiring, or cleaning corroded connectors.

7. How much does it cost to fix a P101E code?

Repair costs can vary, but replacing the Glow Plug Control Module Temperature Sensor typically ranges from $150 to $300, depending on parts and labor rates.

8. Can a weak battery cause the P101E code?

While uncommon, a weak or failing battery can potentially cause electrical issues that may contribute to this code. Ensure the battery is in good condition before further diagnosis.

9. Is the P101E code specific to GMC vehicles?

The P101E code is often specific to GM vehicles, including GMC models, as it relates to their Glow Plug Control Module system.

10. Do I need specialized tools to fix the P101E code?

Basic tools like a multimeter may help diagnose wiring or sensor issues, but advanced diagnostic tools or a professional scan tool may be required for a thorough repair.

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