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P101E 2016 Chevrolet Silverado Code - Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage

Quick Answer

The P101E diagnostic trouble code (DTC) indicates that the Glow Plug Control Module (GPCM) has detected a high voltage condition in the circuit associated with Temperature Sensor 3. Common causes include Faulty Temperature Sensor: The temperature sensor may be malfunctioning or damaged, Wiring Issues: Damaged or corroded wiring in the circuit leading to the sensor, GPCM Malfunction: A failure within the Glow Plug Control Module itself. 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 Chevrolet Silverado indicates Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage.
Common causes
Common causes include Faulty Temperature Sensor: The temperature sensor may be malfunctioning or damaged, Wiring Issues: Damaged or corroded wiring in the circuit leading to the sensor, GPCM Malfunction: A failure within the Glow Plug Control Module itself.
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 Oct 03, 2024
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Code P101E 2016 Chevrolet Silverado Description

The P101E diagnostic trouble code (DTC) indicates that the Glow Plug Control Module (GPCM) has detected a high voltage condition in the circuit associated with Temperature Sensor 3. This sensor is crucial for monitoring the temperature of the glow plugs, which are essential for starting diesel engines, especially in cold conditions. When the engine is cold, the glow plugs heat up to facilitate combustion, ensuring smooth engine operation.

OBDII Code P101E 2016 Chevrolet Silverado - Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage
P101E 2016 Chevrolet Silverado Code - Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage

Common Causes of P101E 2016 Chevrolet Silverado

  1. Faulty Temperature Sensor: The temperature sensor may be malfunctioning or damaged.
  2. Wiring Issues: Damaged or corroded wiring in the circuit leading to the sensor.
  3. GPCM Malfunction: A failure within the Glow Plug Control Module itself.
  4. Poor Ground Connection: Inadequate grounding can lead to erroneous voltage readings.
  5. Short Circuit: A short circuit in the wiring harness can cause high voltage readings.

Symptoms of P101E 2016 Chevrolet Silverado

  1. Hard Starting: Difficulty starting the engine, especially in cold weather.
  2. Rough Idle: The engine may run unevenly or shake when idling.
  3. Increased Emissions: Higher levels of exhaust emissions due to incomplete combustion.
  4. Check Engine Light: The illumination of the check engine light on the dashboard.
  5. Poor Fuel Economy: Decreased fuel efficiency due to improper combustion.

How to Fix P101E 2016 Chevrolet Silverado

  1. Diagnostic Testing: Use an OBD-II scanner to confirm the P101E code and check for any related codes.
  2. Visual Inspection: Inspect the wiring and connectors associated with the temperature sensor for damage or corrosion.
  3. Sensor Replacement: If the temperature sensor is found to be faulty, replace it with a new one.
  4. GPCM Check: Test the Glow Plug Control Module to ensure it is functioning correctly; replace if necessary.
  5. Clear Codes and Test Drive: After repairs, clear the codes and perform a test drive to ensure the issue is resolved and the check engine light does not reappear.

Cost to Fix P101E 2016 Chevrolet Silverado

The estimated cost for diagnosing and repairing the P101E code can vary widely based on several factors, including the specific diagnosis time and labor rates at auto repair shops. Typically, the cost for parts (such as a new temperature sensor and possibly a GPCM) can range from $100 to $300. Labor costs can vary significantly, with most auto repair shops charging between $80 and $150 per hour. In metropolitan areas or at dealerships, rates may be higher, while independent shops may offer lower rates. Overall, the total repair cost could range from $200 to $600, depending on the extent of the repairs needed. It is advisable to check local rates for a more precise estimate and to ensure that the repair shop is reputable.

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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 Chevrolet Silverado Code

1. What does the OBDII code P101E mean on a 2016 Chevrolet Silverado?

P101E indicates an issue with the Glow Plug Control Module Temperature Sensor 3 Circuit, specifically that it is experiencing high voltage.

2. What are the symptoms of a P101E code on a 2016 Chevrolet Silverado?

Common symptoms include difficulty starting the engine in cold weather, reduced engine performance, or the check engine light being illuminated.

3. What causes the P101E code to appear on a Chevy Silverado?

Possible causes include a faulty Glow Plug Control Module Temperature Sensor, damaged wiring or connectors in the circuit, or a malfunction in the glow plug control module itself.

4. How can I diagnose the P101E code on my Silverado?

Start by inspecting the wiring and connections to the Glow Plug Control Module Temperature Sensor for damage or corrosion. Use a multimeter to check the sensor's voltage readings and compare them to the manufacturer’s specifications.

5. Can I drive my 2016 Silverado with a P101E code?

While the truck may still run, driving with this code can lead to hard starts in cold weather and potential long-term damage to the engine. It’s best to address the issue promptly.

6. How do I fix the P101E code on a 2016 Chevrolet Silverado?

Repairs may include replacing the Glow Plug Control Module Temperature Sensor, repairing or replacing damaged wiring, or replacing the glow plug control module if necessary.

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

The repair cost can vary depending on the exact cause but typically ranges from $150 to $400, including parts and labor.

8. Can a P101E code be caused by a dead battery?

A weak or dead battery can cause electrical issues that might trigger this code, but it's not the most common cause. Always check the battery and charging system as part of diagnostics.

9. How do I reset the P101E code after making repairs?

After completing repairs, use an OBDII scanner to clear the code. If the issue is resolved, the code should not return.

10. Is the P101E code specific to diesel engines?

Yes, this code typically appears on diesel-powered vehicles like the 2016 Chevrolet Silverado, as it relates to the glow plug system.

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