Engine-CodesChevrolet – P101B 2014 Chevrolet Silverado

P101B 2014 Chevrolet Silverado Code - Glow Plug Control Module Temperature Sensor 2 Circuit Low Voltage

Quick Answer

The P101B diagnostic trouble code (DTC) for the 2014 Chevrolet Silverado specifically refers to a problem with the Glow Plug Control Module Temperature Sensor 2 Circuit having low voltage. Common causes include Faulty glow plug control module temperature sensor, Wiring issues or a poor connection in the temperature sensor circuit, Corrosion or damage to the sensor or its wiring. 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
P101B 2014 Chevrolet Silverado indicates Glow Plug Control Module Temperature Sensor 2 Circuit Low Voltage.
Common causes
Common causes include Faulty glow plug control module temperature sensor, Wiring issues or a poor connection in the temperature sensor circuit, Corrosion or damage to the sensor or its wiring.
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.
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code P101B 2014 Chevrolet Silverado Description

The P101B diagnostic trouble code (DTC) for the 2014 Chevrolet Silverado specifically refers to a problem with the Glow Plug Control Module Temperature Sensor 2 Circuit having low voltage. The glow plug control module is a crucial component in diesel engines, as it helps in heating the glow plugs for cold starts. The temperature sensor monitors the temperature of the glow plug control module to ensure optimal performance. When the voltage in this circuit is too low, it can lead to various issues with the vehicle's starting and overall performance.

OBDII Code P101B 2014 Chevrolet Silverado - Glow Plug Control Module Temperature Sensor 2 Circuit Low Voltage
P101B 2014 Chevrolet Silverado Code - Glow Plug Control Module Temperature Sensor 2 Circuit Low Voltage

Common Causes of P101B 2014 Chevrolet Silverado

  1. Faulty glow plug control module temperature sensor.
  2. Wiring issues or a poor connection in the temperature sensor circuit.
  3. Corrosion or damage to the sensor or its wiring.
  4. Electrical problems in the vehicle's system.
  5. Extreme temperature fluctuations affecting the sensor's readings.

Symptoms of P101B 2014 Chevrolet Silverado

  1. Difficulty starting the engine, especially in cold weather.
  2. Reduced engine power or performance.
  3. Illumination of the check engine light on the dashboard.
  4. Poor fuel efficiency.
  5. Rough idling or stalling of the engine.

How to Fix P101B 2014 Chevrolet Silverado

  1. Begin by diagnosing the specific cause of the low voltage in the Glow Plug Control Module Temperature Sensor 2 Circuit.
  2. Inspect the sensor, wiring, and connections for any visible damage or corrosion.
  3. Test the sensor's resistance and voltage output to determine if it is functioning correctly.
  4. Replace the temperature sensor if it is found to be faulty.
  5. Clear the DTC and reset the vehicle's computer system to see if the issue has been resolved.

Cost to Fix P101B 2014 Chevrolet Silverado

The cost of repairing the Glow Plug Control Module Temperature Sensor 2 Circuit low voltage issue can vary depending on the specific cause and the labor rates in your area. In general, replacing the temperature sensor itself can range from $100 to $200, with additional costs for diagnostic tests and labor. Overall, you can expect the repair to cost between $200 and $400, but it's advisable to get a detailed quote from a trusted auto repair shop. Remember that labor rates can vary significantly, so it's best to inquire locally 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 P101B 2014 Chevrolet Silverado Code

1. What are the common symptoms of OBDII code P101B in a 2014 Chevrolet Silverado?

- Common symptoms include rough idling, poor engine performance, decreased fuel efficiency, and in some cases, the vehicle may enter limp mode.

2. What does the Glow Plug Control Module Temperature Sensor 2 Circuit Low Voltage code P101B indicate in a 2014 Chevrolet Silverado?

- The code indicates that there is a low voltage condition detected in the circuit related to the temperature sensor for the glow plug control module.

3. What are the possible causes of OBDII code P101B in a 2014 Chevrolet Silverado?

- Possible causes may include a faulty glow plug control module temperature sensor, damaged wiring or connectors, a malfunctioning glow plug control module, or a problem with the vehicle's electrical system.

4. How can I diagnose the Glow Plug Control Module Temperature Sensor 2 Circuit Low Voltage code P101B in my 2014 Chevrolet Silverado?

- Diagnosis typically involves using a scan tool to retrieve the specific fault code, testing the temperature sensor and related circuits for continuity and proper voltage, and inspecting the wiring and connectors for any damage.

5. Can I continue driving my 2014 Chevrolet Silverado with OBDII code P101B active?

- It is not recommended to continue driving with this code active, as it can lead to further engine damage and potential safety issues. It is best to address the underlying problem promptly.

6. How can I repair OBDII code P101B in my 2014 Chevrolet Silverado?

- Repair usually involves replacing the faulty glow plug control module temperature sensor, repairing any damaged wiring or connectors, or replacing the glow plug control module if necessary.

7. Is it possible to reset OBDII code P101B in a 2014 Chevrolet Silverado without fixing the underlying issue?

- While you can clear the code using a scan tool, it will likely reappear until the underlying problem is addressed. It's important to fix the root cause to prevent further issues.

8. Are there any preventive maintenance steps to avoid OBDII code P101B in a 2014 Chevrolet Silverado?

- Regularly inspecting the glow plug system, including the temperature sensor and related components, can help catch any potential issues early and prevent the code from appearing.

9. Can extreme weather conditions affect the occurrence of OBDII code P101B in a 2014 Chevrolet Silverado?

- Yes, extreme cold or hot weather can sometimes put additional stress on the glow plug system, leading to potential failures or malfunctions that trigger this code.

10. How long does it typically take to repair OBDII code P101B in a 2014 Chevrolet Silverado?

- The repair time can vary depending on the exact cause of the issue and the availability of parts. It can range from a quick sensor replacement to a more involved glow plug control module replacement, taking a few hours to complete.

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