P101E 2017 GMC Sierra Code - Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage
Quick Answer
The diagnostic trouble code P101E for a 2017 GMC Sierra indicates a problem with the Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage. Common causes include Faulty glow plug control module temperature sensor, Damaged wiring or connectors in the circuit, Corrosion or poor connections in the sensor circuit. 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 2017 GMC Sierra indicates Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage.
- Common causes
- Common causes include Faulty glow plug control module temperature sensor, Damaged wiring or connectors in the circuit, Corrosion or poor connections in the sensor circuit.
- 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 P101E 2017 GMC Sierra Description
The diagnostic trouble code P101E for a 2017 GMC Sierra indicates a problem with the Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage. The glow plug control module is a crucial component in diesel engines, responsible for controlling the glow plugs' operation to assist in cold starting. The temperature sensor monitors the temperature of the glow plug control module to ensure it operates within the specified range. When the sensor detects a high voltage in circuit 3, it triggers the P101E code.
Common Causes of P101E 2017 GMC Sierra
- Faulty glow plug control module temperature sensor
- Damaged wiring or connectors in the circuit
- Corrosion or poor connections in the sensor circuit
- Issues with the glow plug control module itself
- Electrical system malfunctions
Symptoms of P101E 2017 GMC Sierra
- Hard starting or extended cranking time
- Rough idling or engine misfires
- Decreased fuel efficiency
- Illumination of the check engine light
- Reduced engine performance
How to Fix P101E 2017 GMC Sierra
- Use a diagnostic scanner to retrieve the trouble code and confirm the issue.
- Inspect the wiring and connectors in the temperature sensor circuit for any damage or corrosion.
- Test the temperature sensor's resistance and voltage to determine if it is functioning correctly.
- Replace the faulty temperature sensor if necessary, ensuring proper installation and connection.
- Clear the trouble code from the vehicle's computer and test the system to verify the repair.
Cost to Fix P101E 2017 GMC Sierra
The typical repair costs for addressing a Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage issue can range from $150 to $300, including parts and labor. However, specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to inquire about local rates to obtain a more accurate estimate for this repair. Keep in mind that rates may be higher in metropolitan areas or at dealerships, while independent shops often offer more competitive prices.
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Frequently Asked Questions about P101E 2017 GMC Sierra Code
1. What does the OBDII code P101E mean on a 2017 GMC Sierra?
P101E indicates a "Glow Plug Control Module Temperature Sensor 3 Circuit High Voltage," meaning there is an issue with the sensor circuit in the glow plug control module detecting higher-than-expected voltage.
2. What are the symptoms of code P101E on a 2017 GMC Sierra?
Common symptoms include difficulty starting the engine, reduced engine performance, a check engine light, and possible stalling in cold weather.
3. What causes the P101E code to appear?
Possible causes include a faulty glow plug control module temperature sensor, damaged or corroded wiring, a poor electrical connection, or a malfunction in the glow plug control module itself.
4. Can I still drive my 2017 GMC Sierra with a P101E code?
While the truck may still be drivable, it could experience reduced performance or starting issues, especially in cold weather. It is best to address the issue promptly to avoid further damage.
5. How do I diagnose the P101E code on my GMC Sierra?
Start by checking the wiring and connectors around the glow plug control module for damage or corrosion. Use a multimeter to test the temperature sensor circuit for proper voltage and continuity.
6. How can I fix the P101E code on a 2017 GMC Sierra?
Repairs may include replacing a damaged temperature sensor, repairing or replacing faulty wiring, cleaning corroded connections, or replacing the glow plug control module if it is malfunctioning.
7. How much does it cost to repair a P101E code on a GMC Sierra?
Repair costs can vary, but replacing a temperature sensor typically costs $100-$300, including parts and labor. If the glow plug control module needs replacement, the cost may increase significantly.
8. Can a P101E code be caused by a software issue?
Yes, in some cases, outdated or corrupted software in the engine control module (ECM) or glow plug control module could trigger this code. A software update may resolve the issue.
9. How do I prevent the P101E code from recurring?
Regular maintenance, including inspecting wiring and connections for corrosion or wear, and ensuring the glow plug system is functioning properly, can help prevent this code from returning.
10. Is the P101E code specific to cold weather operation?
While not exclusive to cold weather, this code is more likely to surface in cold conditions as the glow plug system is critical for starting the engine in lower temperatures.
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