AutoCodes – GMC – P101E 2016 GMC Sierra

P101E 2016 GMC Sierra Code - Glow Plug Control Module Temperature Sensor 3 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: P101E 2016 GMC Sierra indicates Glow Plug Control Module Temperature Sensor 3 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.

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Code Popularity 255

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Oct 01, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P101E 2016 GMC Sierra Description

The Glow Plug Control Module (GPCM) has the ability to perform internal diagnostics for the temperature sensor circuit. The GPCM monitors the internal temperature sensor voltage and if the voltage is less than 0.21 V or greater than 4.94 V. The GPCM will send a message to the Engine Control Module (ECM) to set the appropriate Diagnostic Trouble Code (DTC). A DTC is detected when one of the GPCM temperature sensors voltage falls outside the calibrated threshold for greater than 1.3 s.

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

What does this mean?

What are the Possible Causes of the DTC P101E 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 P101E 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 P101E 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.

Need more information about the P101E 2016 GMC Sierra code?

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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.