Engine-CodesGMC – P142F GMC

P142F GMC Code - Particulate Matter Sensor Control Module Temperature Sensor 2 High Voltage

Quick Answer

The P142F diagnostic trouble code (DTC) for GMC vehicles indicates a problem with the Particulate Matter Sensor Control Module Temperature Sensor 2, specifically showing high voltage readings. Common causes include Faulty temperature sensor 2, Wiring issues or short circuits, Malfunctioning particulate matter sensor control module. 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
P142F GMC indicates Particulate Matter Sensor Control Module Temperature Sensor 2 High Voltage.
Common causes
Common causes include Faulty temperature sensor 2, Wiring issues or short circuits, Malfunctioning particulate matter sensor control module.
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 Sep 10, 2024
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Code P142F GMC Description

The P142F diagnostic trouble code (DTC) for GMC vehicles indicates a problem with the Particulate Matter Sensor Control Module Temperature Sensor 2, specifically showing high voltage readings. This sensor is responsible for monitoring the temperature of the control module to ensure optimal performance and efficiency. When the sensor detects high voltage, it signifies that the temperature is beyond the expected range, which could lead to various issues within the vehicle's emissions control system.

OBDII Code P142F GMC - Particulate Matter Sensor Control Module Temperature Sensor 2 High Voltage
P142F GMC Code - Particulate Matter Sensor Control Module Temperature Sensor 2 High Voltage

Common Causes of P142F GMC

  1. Faulty temperature sensor 2
  2. Wiring issues or short circuits
  3. Malfunctioning particulate matter sensor control module
  4. Software or firmware glitches
  5. Environmental factors such as extreme temperatures

Symptoms of P142F GMC

  1. Decreased fuel efficiency
  2. Check engine light illuminated
  3. Emissions-related warning light on the dashboard
  4. Rough idle or stalling
  5. Reduced engine performance

How to Fix P142F GMC

  1. Perform a diagnostic scan to retrieve the specific trouble code and pinpoint the issue.
  2. Inspect the wiring harness and connections for any damage or corrosion.
  3. Test the temperature sensor 2 for proper functionality and replace if necessary.
  4. Check the particulate matter sensor control module for any faults and repair or replace as needed.
  5. Clear the trouble code from the vehicle's computer and test drive to ensure the issue has been resolved.

Cost to Fix P142F GMC

The cost of repairing a P142F GMC code can vary depending on the specific cause of the issue and the labor rates at the auto repair shop. On average, the repair for this type of problem could range from $200 to $500, including parts and labor. However, as mentioned earlier, labor rates can vary significantly based on location and the shop's pricing structure. It is recommended to obtain quotes from multiple repair facilities to ensure you are getting a fair price for the necessary repairs.

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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 P142F GMC Code

1. What are the common symptoms of an OBDII code P142F in a GMC vehicle?

- Common symptoms include the check engine light coming on, decreased fuel efficiency, rough idling, and potential exhaust smoke.

2. What does the OBDII code P142F GMC indicate?

- The code P142F indicates that the Particulate Matter Sensor Control Module Temperature Sensor 2 has detected high voltage.

3. What are the possible causes of the P142F code in a GMC vehicle?

- Possible causes include a faulty temperature sensor, wiring issues, a malfunctioning control module, or a problem with the particulate matter sensor itself.

4. How can I diagnose the P142F code in my GMC vehicle?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, checking the wiring and connections related to the temperature sensor, and testing the sensor's resistance.

5. Can I continue driving my GMC vehicle with the P142F code present?

- It is not recommended to drive your vehicle with the P142F code present, as it can lead to further damage and potentially affect the vehicle's performance.

6. What are some repair tips for fixing the P142F code in a GMC vehicle?

- Repair tips may include replacing the faulty temperature sensor, repairing any damaged wiring, resetting the code, or seeking professional help for further diagnosis.

7. How much does it typically cost to repair the P142F code in a GMC vehicle?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Can a DIY enthusiast fix the P142F code in a GMC vehicle?

- Depending on the skill level and tools available, some DIY enthusiasts may be able to address the P142F code, especially if it involves simple tasks like sensor replacement or wiring repair.

9. Will resetting the code make the issue go away permanently?

- Resetting the code may temporarily clear the check engine light, but if the underlying issue causing the P142F code is not addressed, the code is likely to reappear.

10. Is the P142F code specific to GMC vehicles only?

- While the code P142F is associated with GMC vehicles, similar codes related to particulate matter sensors and temperature sensors may exist for other vehicle makes and models.

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