P0667 GMC Code - Control Module Temperature Sensor Performance
Quick Answer
The Transmission Control Module (TCM) temperature sensor is located inside of the control solenoid valve assembly which has no serviceable parts. Common causes include Faulty Control Solenoid Valve Assembly, Control Solenoid Valve Assembly harness is open or shorted, Control Solenoid Valve Assembly circuit poor electrical connection. 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 GMC indicates Control Module Temperature Sensor Performance.
- Common causes
- Common causes include Faulty Control Solenoid Valve Assembly, Control Solenoid Valve Assembly harness is open or shorted, Control Solenoid Valve Assembly circuit poor electrical connection.
- 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.
Code P0667 GMC Description
What are the Possible Causes of the DTC P0667 GMC?
- Faulty Control Solenoid Valve Assembly
- Control Solenoid Valve Assembly harness is open or shorted
- Control Solenoid Valve Assembly circuit poor electrical connection
How to Fix the DTC P0667 GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0667 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific GMC Models
- P0667 2014 GMC Sierra — Control Module Temperature Sensor Performance
- P0667 2015 GMC Sierra — Control Module Temperature Sensor Performance
- P0667 2016 GMC Sierra — Control Module Temperature Sensor Performance
- P0667 2017 GMC Sierra — Control Module Temperature Sensor Performance
- P0667 2018 GMC Sierra — Control Module Temperature Sensor Performance
Frequently Asked Questions about P0667 GMC Code
1. What does the OBDII code P0667 mean on a GMC vehicle?
P0667 indicates an issue with the Control Module Temperature Sensor's performance, suggesting the sensor is reading outside normal parameters or is malfunctioning.
2. What are the common symptoms of code P0667 in a GMC?
Symptoms may include poor engine performance, reduced fuel efficiency, the Check Engine Light turning on, or irregular temperature readings.
3. What causes the P0667 code to appear on a GMC?
Possible causes include a faulty control module temperature sensor, wiring issues such as damaged or corroded connections, or a malfunctioning engine control module (ECM).
4. Can I still drive my GMC with the P0667 code active?
While the vehicle may still be drivable, ignoring the code can lead to engine performance issues or potential long-term damage. It's best to address the issue promptly.
5. How do I diagnose the P0667 code on a GMC?
Diagnosis involves using an OBDII scanner to confirm the code, visually inspecting the sensor and wiring for damage, and testing the sensor's resistance and voltage with a multimeter.
6. How do I fix the P0667 code on my GMC?
Repairs may include replacing the faulty temperature sensor, repairing or replacing damaged wiring, or reprogramming or replacing the ECM if necessary.
7. How much does it cost to fix the P0667 code on a GMC?
The cost varies depending on the repair, but replacing a temperature sensor or fixing wiring typically costs $100–$300, while ECM replacement can be significantly more.
8. Can a dirty or corroded connection trigger the P0667 code?
Yes, corroded or dirty electrical connections can disrupt the signal from the temperature sensor, triggering the code.
9. Does the P0667 code always mean the sensor is faulty?
Not necessarily. It could also result from wiring problems, a poor electrical connection, or an issue with the ECM.
10. Can I reset the P0667 code without repairs?
You can clear the code with an OBDII scanner, but if the underlying issue isn’t resolved, the code will likely reappear.
Discuss the causes and fixes for P0667 GMC OBDII Code
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