P0668 2014 Chevrolet Silverado Code - Control Module Temperature Sensor Circuit Low Voltage
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
- P0668 2014 Chevrolet Silverado indicates Control Module Temperature Sensor Circuit Low Voltage.
- 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 P0668 2014 Chevrolet Silverado Description
What are the Possible Causes of the DTC P0668 2014 Chevrolet Silverado?
- 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 P0668 2014 Chevrolet Silverado?
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 P0668 2014 Chevrolet Silverado 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.
Need more information about the P0668 2014 Chevrolet Silverado code?
Need more information on how to fix the P0668 2014 Chevrolet Silverado code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0668 2014 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0668 2014 Chevrolet Silverado Code
1. What does the OBDII code P0668 mean for a 2014 Chevrolet Silverado?
P0668 indicates a "Control Module Temperature Sensor Circuit Low Voltage," meaning the temperature sensor in the control module is detecting a voltage lower than the expected range.
2. What are the common symptoms of code P0668 in a 2014 Chevrolet Silverado?
Symptoms may include an illuminated check engine light, poor engine performance, rough idling, decreased fuel efficiency, and potential overheating issues.
3. What causes the P0668 code to appear in a 2014 Chevrolet Silverado?
Common causes include a faulty control module temperature sensor, damaged wiring or connectors, a short or open circuit, or a malfunctioning powertrain control module (PCM).
4. Can driving with code P0668 damage my 2014 Chevrolet Silverado?
Driving for extended periods with this code may lead to engine performance issues or overheating, potentially causing further damage if not addressed promptly.
5. How can I diagnose the P0668 code on my 2014 Chevrolet Silverado?
Start by inspecting the wiring and connectors for the control module temperature sensor. Use a multimeter to check for proper voltage and continuity, and scan for related codes to narrow down the issue.
6. How do I fix the P0668 code on a 2014 Chevrolet Silverado?
Repairs may include replacing the control module temperature sensor, repairing or replacing damaged wiring or connectors, or updating/replacing the PCM if necessary.
7. How much does it cost to repair the P0668 code on a 2014 Chevrolet Silverado?
Repair costs vary but typically range from $100 to $300 depending on whether the issue lies with the sensor, wiring, or PCM.
8. Can a bad battery cause the P0668 code on a 2014 Chevrolet Silverado?
A weak or failing battery can contribute to voltage issues, potentially triggering this code. Check the battery’s health as part of the diagnostic process.
9. Is the P0668 code specific to the 2014 Chevrolet Silverado?
No, P0668 is a generic OBDII code that can appear in other vehicles, but the specific symptoms and repair steps may vary by make and model.
10. Do I need professional help to fix the P0668 code on my 2014 Chevrolet Silverado?
If you’re familiar with automotive diagnostics and have the tools, you can attempt the repair yourself. However, consulting a professional mechanic is recommended for more complex issues like PCM problems.
Discuss the causes and fixes for P0668 2014 Chevrolet Silverado OBDII Code
Code P0668 2014 Chevrolet Silverado comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
