AutoCodes – Chevrolet – P101E Chevrolet

P101E Chevrolet 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 Chevrolet 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 874

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 Chevrolet 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 Chevrolet - Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage - AutoCodes.com — P101E Chevrolet Code - Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P101E Chevrolet?

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 Chevrolet?

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 Chevrolet 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 Chevrolet code?

Need more information on how to fix the P101E Chevrolet code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P101E Chevrolet code diagnosed by a professional: Find a repair shop in your area

Information for Specific Chevrolet Models

P101E 2014 Chevrolet Silverado — Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage
P101E 2015 Chevrolet Silverado — Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage
P101E 2016 Chevrolet Silverado — Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage
P101E 2017 Chevrolet Silverado — Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage
P101E 2018 Chevrolet Silverado — Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage

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 Chevrolet Code

What does OBDII code P101E mean for a Chevrolet vehicle?

OBDII code P101E indicates that the Glow Plug Control Module Temperature Sensor 3 is reporting a high voltage condition, which can affect the performance of the glow plugs.

What are common symptoms of code P101E?

Common symptoms include hard starting, rough idling, increased exhaust emissions, and possible engine performance issues, especially in cold weather.

What could cause the P101E code to trigger?

Causes may include a faulty glow plug control module temperature sensor, damaged wiring or connectors, or issues with the glow plug control module itself.

How can I diagnose the P101E code?

To diagnose code P101E, check the temperature sensor for proper operation, inspect wiring and connectors for damage, and use a multimeter to verify voltage levels at the sensor.

What are some possible repairs for code P101E?

Repairs may include replacing the faulty temperature sensor, repairing or replacing damaged wiring or connectors, or replacing the glow plug control module if necessary.

Can I drive my vehicle with code P101E?

While it may be possible to drive with code P101E, it is not recommended due to potential engine performance issues and increased emissions, especially in cold climates.

How can I prevent the P101E code from occurring?

Regular maintenance, including checking and replacing glow plugs and their associated components, can help prevent issues that trigger the P101E code.

Will clearing the code fix the problem permanently?

Clearing the code may temporarily turn off the check engine light, but if the underlying issue is not addressed, the code will likely return.

Is code P101E specific to certain Chevrolet models?

While P101E can occur in various Chevrolet models, it is most commonly associated with diesel engines equipped with glow plug systems. Always consult your vehicle's service manual for specific information.