P0667 Code - Control Module Temperature Sensor Performance
Quick Answer
The diagnostic trouble code P0667 indicates an issue with the control module temperature sensor performance in the vehicle. Common causes include Faulty Control Module Temperature Sensor: The sensor itself may be malfunctioning or failing, leading to inaccurate temperature readings, Wiring Issues: Damaged or corroded wiring connected to the control module temperature sensor can disrupt the signal being sent to the control module, Electrical Faults: Issues with the electrical system, such as a blown fuse or a short circuit, can affect the performance of the control module temperature sensor. 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 indicates Control Module Temperature Sensor Performance.
- Common causes
- Common causes include Faulty Control Module Temperature Sensor: The sensor itself may be malfunctioning or failing, leading to inaccurate temperature readings, Wiring Issues: Damaged or corroded wiring connected to the control module temperature sensor can disrupt the signal being sent to the control module, Electrical Faults: Issues with the electrical system, such as a blown fuse or a short circuit, can affect the performance of the control module temperature sensor.
- 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 Description
The diagnostic trouble code P0667 indicates an issue with the control module temperature sensor performance 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. When this sensor malfunctions or fails to perform as expected, it can lead to a range of issues that affect the vehicle's performance and overall operation.
Common Causes of P0667
- Faulty Control Module Temperature Sensor: The sensor itself may be malfunctioning or failing, leading to inaccurate temperature readings.
- Wiring Issues: Damaged or corroded wiring connected to the control module temperature sensor can disrupt the signal being sent to the control module.
- Electrical Faults: Issues with the electrical system, such as a blown fuse or a short circuit, can affect the performance of the control module temperature sensor.
- Faulty Control Module: A malfunctioning control module can also trigger the P0667 code, as it may not be able to receive accurate temperature readings from the sensor.
Symptoms of P0667
- 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, such as rough idling, misfires, or hesitation during acceleration.
- Reduced Fuel Efficiency: A malfunctioning control module temperature sensor can lead to decreased fuel efficiency, causing the vehicle to consume more fuel than usual.
- Overheating: In some cases, the vehicle may experience overheating issues due to the control module temperature sensor not functioning correctly.
- Electronic System Malfunctions: The vehicle's electronic systems, such as the climate control or infotainment system, may exhibit erratic behavior or fail to operate properly.
How to Fix P0667
- Diagnostic Scan: The first step in resolving the P0667 code is to perform a diagnostic scan using an OBD-II scanner to retrieve the specific fault codes and identify the underlying issue.
- Inspect Control Module Temperature Sensor: Check the control module temperature sensor for any visible damage or signs of malfunction. Replace the sensor if necessary.
- Check Wiring and Connections: Inspect the wiring harness and connections associated with the control module temperature sensor for any damage or corrosion. Repair or replace as needed.
- Test Control Module: Test the control module to ensure that it is functioning correctly and receiving accurate temperature readings from the sensor.
- Clear Codes and Test Drive: After completing the repairs, clear the fault codes using the OBD-II scanner and test drive the vehicle to ensure that the issue has been resolved.
Cost to Fix P0667
The typical repair costs for addressing the P0667 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of replacing a control module temperature sensor can range from $100 to $200, including parts and labor. However, if additional repairs or replacements are required, such as fixing wiring issues or replacing the control module itself, the total cost can increase accordingly.
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Code P0667 Information for Specific Makes
- P0667 Buick — Control Module Temperature Sensor Performance
- P0667 Cadillac — Control Module Temperature Sensor Performance
- P0667 Chevrolet — Control Module Temperature Sensor Performance
- P0667 GMC — Control Module Temperature Sensor Performance
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