P0667 2014 GMC Sierra Code - Control Module Temperature Sensor Performance
Quick Answer
The P0667 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the Control Module Temperature Sensor Performance. Common causes include Faulty control module temperature sensor: The sensor itself may be defective or damaged, causing inaccurate temperature readings, Wiring issues: Damaged or corroded wiring connected to the control module temperature sensor can result in performance issues, Electrical problems: Issues with the electrical system, such as a blown fuse or relay, can affect the sensor's functionality. 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 2014 GMC Sierra indicates Control Module Temperature Sensor Performance.
- Common causes
- Common causes include Faulty control module temperature sensor: The sensor itself may be defective or damaged, causing inaccurate temperature readings, Wiring issues: Damaged or corroded wiring connected to the control module temperature sensor can result in performance issues, Electrical problems: Issues with the electrical system, such as a blown fuse or relay, can affect the sensor's functionality.
- 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 2014 GMC Sierra Description
The P0667 diagnostic trouble code (DTC) for a 2014 GMC Sierra relates to the Control Module Temperature Sensor Performance. This code indicates that there is a malfunction or performance issue with the control module temperature sensor in the vehicle. The control module temperature sensor is responsible for monitoring the temperature of the control module, which is crucial for the proper functioning of various systems in the vehicle.
Common Causes of P0667 2014 GMC Sierra
- Faulty control module temperature sensor: The sensor itself may be defective or damaged, causing inaccurate temperature readings.
- Wiring issues: Damaged or corroded wiring connected to the control module temperature sensor can result in performance issues.
- Electrical problems: Issues with the electrical system, such as a blown fuse or relay, can affect the sensor's functionality.
- Software issues: Problems with the control module software can impact the sensor's performance.
- Environmental factors: Extreme temperatures or exposure to moisture can also contribute to sensor malfunction.
Symptoms of P0667 2014 GMC Sierra
- Engine overheating: A malfunctioning control module temperature sensor may result in the engine running hotter than normal, leading to overheating issues.
- Poor fuel efficiency: The sensor's inability to regulate the control module temperature effectively can impact fuel consumption, causing reduced fuel efficiency.
- Check Engine Light: The illumination of the Check Engine Light on the dashboard is a common symptom associated with this code.
- Difficulty starting the engine: A faulty control module temperature sensor can cause starting issues due to incorrect temperature readings affecting fuel delivery.
How to Fix P0667 2014 GMC Sierra
- Diagnose the issue: Use a diagnostic scan tool to retrieve the DTC and pinpoint the exact cause of the problem.
- Inspect the control module temperature sensor: Check the sensor for any visible damage or signs of wear.
- Test the wiring and electrical connections: Ensure that the wiring connected to the sensor is intact and functioning correctly.
- Replace the control module temperature sensor: If the sensor is faulty, replace it with a new one to restore proper functionality.
- Clear the DTC: After completing the repair, clear the DTC from the vehicle's memory to reset the Check Engine Light and ensure the issue has been resolved.
Cost to Fix P0667 2014 GMC Sierra
The typical repair costs for addressing a P0667 code in a 2014 GMC Sierra can range from $150 to $300, including parts and labor. However, it's essential to note that 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. Auto repair shops commonly charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships and lower at independent shops. To obtain a more accurate estimate, it's recommended to consult local rates before proceeding with the repair.
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Frequently Asked Questions about P0667 2014 GMC Sierra Code
What does the OBDII code P0667 mean on a 2014 GMC Sierra?
The P0667 code indicates an issue with the Control Module Temperature Sensor's performance, signaling that the sensor may not be functioning within its expected range.
What are the common symptoms of code P0667 in a 2014 GMC Sierra?
Symptoms can include an illuminated check engine light, erratic engine performance, poor fuel efficiency, or the engine entering limp mode.
What causes the P0667 code to appear on a 2014 GMC Sierra?
Common causes include a faulty control module temperature sensor, wiring issues like short circuits or broken connectors, or a malfunctioning Powertrain Control Module (PCM).
How can I diagnose the P0667 code on a 2014 GMC Sierra?
Start by using an OBDII scanner to confirm the code, inspect the sensor and wiring for damage, and test the sensor’s resistance and signal output to ensure it's functioning properly.
Can I still drive my 2014 GMC Sierra with a P0667 code?
While the vehicle may still be drivable, ignoring the code can lead to reduced performance, potential overheating issues, and further damage to the engine or control module.
How do I fix the P0667 code on a 2014 GMC Sierra?
Repairs may include replacing the control module temperature sensor, repairing damaged wiring or connectors, or, in rare cases, reprogramming or replacing the PCM.
How much does it cost to repair the P0667 code on a 2014 GMC Sierra?
Repair costs can vary, but replacing the temperature sensor typically costs $100-$300, including parts and labor, depending on your location and mechanic.
Can the P0667 code be triggered by a software issue in the PCM?
Yes, a software error or outdated PCM firmware can sometimes cause this code, necessitating a reflash or update to the PCM.
What tools do I need to troubleshoot the P0667 code on a 2014 GMC Sierra?
You'll need an OBDII scanner, a multimeter to test electrical connections, and possibly a repair manual for your vehicle to reference wiring diagrams.
Why is the control module temperature sensor important on a 2014 GMC Sierra?
The sensor monitors the temperature of the control module, ensuring it operates within safe limits and preventing potential damage due to overheating.
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