P0667 2017 GMC Sierra Code - Control Module Temperature Sensor Performance
Quick Answer
The P0667 diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the Control Module Temperature Sensor Performance. Common causes include Faulty Temperature Sensor: The most common cause of the P0667 code is a faulty control module temperature sensor that is providing inaccurate readings to the ECM, Wiring Issues: Damaged or corroded wiring connected to the temperature sensor can disrupt the signal being sent to the ECM, triggering the code, Poor Electrical Connection: A loose or poor electrical connection between the temperature sensor and the ECM can also cause the sensor to malfunction. 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
- P0667 2017 GMC Sierra indicates Control Module Temperature Sensor Performance.
- Common causes
- Common causes include Faulty Temperature Sensor: The most common cause of the P0667 code is a faulty control module temperature sensor that is providing inaccurate readings to the ECM, Wiring Issues: Damaged or corroded wiring connected to the temperature sensor can disrupt the signal being sent to the ECM, triggering the code, Poor Electrical Connection: A loose or poor electrical connection between the temperature sensor and the ECM can also cause the sensor to malfunction.
- 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 P0667 2017 GMC Sierra Description
The P0667 diagnostic trouble code (DTC) for a 2017 GMC Sierra relates to the Control Module Temperature Sensor Performance. This code indicates that the Engine Control Module (ECM) has detected a problem with the temperature sensor's performance. The temperature sensor is responsible for monitoring the temperature of the control module to ensure it operates within the optimal temperature range. If the sensor detects that the control module is operating at a temperature that is too high or too low, it can trigger the P0667 code.
Common Causes of P0667 2017 GMC Sierra
- Faulty Temperature Sensor: The most common cause of the P0667 code is a faulty control module temperature sensor that is providing inaccurate readings to the ECM.
- Wiring Issues: Damaged or corroded wiring connected to the temperature sensor can disrupt the signal being sent to the ECM, triggering the code.
- Poor Electrical Connection: A loose or poor electrical connection between the temperature sensor and the ECM can also cause the sensor to malfunction.
- Control Module Malfunction: In some cases, a malfunctioning control module itself can lead to the P0667 code being triggered.
Symptoms of P0667 2017 GMC Sierra
- Check Engine Light: The most common symptom associated with the P0667 code is the illumination of the Check Engine Light on the vehicle's dashboard.
- Poor Engine Performance: The vehicle may experience a decrease in engine performance, including rough idling, hesitation, or stalling.
- Decreased Fuel Efficiency: A faulty control module temperature sensor can lead to decreased fuel efficiency, causing the vehicle to consume more fuel than usual.
- Overheating Control Module: In some cases, the control module may overheat, leading to potential damage to electronic components.
How to Fix P0667 2017 GMC Sierra
- Diagnose the Issue: Use a diagnostic scanner to retrieve the trouble code and perform a thorough inspection of the control module temperature sensor and related components.
- Replace Temperature Sensor: If the sensor is found to be faulty, replace it with a new, OEM-quality sensor to ensure accurate temperature readings.
- Check Wiring and Connections: Inspect the wiring harness and connections for any damage or corrosion, repairing or replacing as needed.
- Clear Codes: After completing the repair, clear the trouble codes from the ECM's memory using the diagnostic scanner.
- Test Drive: Take the vehicle for a test drive to ensure that the issue has been resolved and that the Check Engine Light does not reappear.
Cost to Fix P0667 2017 GMC Sierra
The cost of repairing a P0667 code on a 2017 GMC Sierra can vary depending on the specific cause of the issue and the labor rates in your area. Typically, the cost of replacing a control module temperature sensor ranges from $100 to $200, including parts and labor. However, additional costs may apply if wiring repairs or control module replacement are necessary. It's important to consult with a qualified mechanic to get an accurate estimate based on your vehicle's specific needs. Labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. Be sure to inquire about diagnostic time and labor rates when seeking repairs for this issue.
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Frequently Asked Questions about P0667 2017 GMC Sierra Code
1. What does OBDII code P0667 mean on a 2017 GMC Sierra?
P0667 indicates an issue with the Control Module Temperature Sensor, specifically related to its performance or range.
2. What are the common symptoms of code P0667?
Symptoms may include the Check Engine Light being illuminated, reduced engine performance, or erratic temperature readings.
3. What causes the P0667 code on a GMC Sierra?
Possible causes include a faulty control module temperature sensor, wiring issues, connector problems, or a malfunctioning control module.
4. Can I drive my 2017 GMC Sierra with a P0667 code?
While the vehicle may still be drivable, it’s recommended to address the issue promptly to avoid potential damage or performance issues.
5. How do I diagnose the P0667 code?
Diagnosing involves using an OBDII scanner to confirm the code, inspecting the control module temperature sensor, checking for damaged wiring or connectors, and testing the sensor’s electrical resistance.
6. How do I fix the P0667 code on my 2017 GMC Sierra?
Repairs may include replacing the faulty temperature sensor, repairing or replacing damaged wiring, cleaning connectors, or in rare cases, replacing the control module.
7. How much does it cost to fix a P0667 code?
Repair costs vary but typically range from $50 to $250, depending on whether the issue is with the sensor, wiring, or module.
8. Can a faulty control module cause the P0667 code?
Yes, a malfunctioning control module can trigger the P0667 code if it fails to process temperature sensor data correctly.
9. What tools are needed to fix code P0667?
You’ll need an OBDII scanner, a multimeter for electrical testing, and possibly basic hand tools for sensor or wiring repairs.
10. Will clearing the P0667 code fix the problem?
Clearing the code may temporarily turn off the Check Engine Light, but the underlying issue must be resolved to prevent the code from returning.
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