U0122 GMC Code - Lost Communication With Vehicle Stability Control Module
Quick Answer
The U0122 code for GMC vehicles indicates that there is a communication problem between the vehicle's onboard computer system and the Vehicle Stability Control Module (VSCM). Common causes include Faulty wiring or connections in the CAN network, Malfunctioning Vehicle Stability Control Module, Software glitches or communication errors in the vehicle's computer system. 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
- U0122 GMC indicates Lost Communication With Vehicle Stability Control Module.
- Common causes
- Common causes include Faulty wiring or connections in the CAN network, Malfunctioning Vehicle Stability Control Module, Software glitches or communication errors in the vehicle's computer system.
- 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 U0122 GMC Description
The U0122 code for GMC vehicles indicates that there is a communication problem between the vehicle's onboard computer system and the Vehicle Stability Control Module (VSCM). The Vehicle Stability Control Module is responsible for monitoring and controlling the vehicle's stability and traction control systems. When communication is lost with this module, it can lead to issues with the vehicle's stability control, traction control, and potentially affect other systems as well.
Common Causes of U0122 GMC
- Faulty wiring or connections in the CAN network
- Malfunctioning Vehicle Stability Control Module
- Software glitches or communication errors in the vehicle's computer system
- Electrical interference or damage to the communication lines
- Water damage or corrosion in the module or wiring
Symptoms of U0122 GMC
- Illumination of the stability control or traction control warning lights on the dashboard
- Loss of stability control or traction control functionality
- Erratic or unpredictable handling characteristics while driving
- Harsh shifting or transmission issues
- Reduced fuel efficiency
How to Fix U0122 GMC
- Begin by conducting a thorough inspection of the wiring and connections in the CAN network to identify any damaged or loose connections.
- Test the Vehicle Stability Control Module for proper functionality and communication.
- Check for any software updates or reprogramming that may be required to resolve communication issues.
- Address any electrical interference or damage to the communication lines.
- Clear the U0122 code from the vehicle's computer system and perform a test drive to ensure the issue has been resolved.
Cost to Fix U0122 GMC
The cost of repairing a U0122 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for this repair can range from $200 to $500, with labor costs adding an additional $100 to $200. Overall, the total repair cost for addressing a Lost Communication With Vehicle Stability Control Module code is typically between $300 and $700. It's important to note that diagnosis time and labor rates can vary, so it's advisable to check with local auto repair shops for a more accurate estimate.
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Frequently Asked Questions about U0122 GMC Code
1. What are the common symptoms of OBDII code U0122 GMC?
- Common symptoms include the ABS warning light, traction control light, and stability control light illuminating on the dashboard. Additionally, issues with the vehicle's stability control system may be experienced.
2. What does the OBDII code U0122 GMC indicate?
- The code U0122 indicates that there is a communication problem between the vehicle's onboard computer system and the Vehicle Stability Control Module.
3. What are some possible causes of the U0122 GMC code?
- Possible causes include a faulty Vehicle Stability Control Module, damaged wiring or connectors, a weak or dead battery, or issues with the CAN bus communication system.
4. How can I diagnose the U0122 code on my GMC vehicle?
- Diagnosis typically involves using an OBDII scanner to retrieve the code and checking for any additional related codes. A thorough inspection of the wiring and connectors related to the Vehicle Stability Control Module is also recommended.
5. Can I still drive my vehicle with the U0122 code present?
- It is not recommended to drive the vehicle with the U0122 code present, as it could affect the vehicle's stability control system and potentially compromise safety.
6. How can I repair the U0122 GMC code?
- Repair options may include replacing the Vehicle Stability Control Module, repairing any damaged wiring or connectors, ensuring the battery is in good condition, and addressing any issues with the CAN bus communication system.
7. Will resetting the trouble codes make the U0122 code disappear?
- Resetting the trouble codes may temporarily clear the U0122 code, but if the underlying issue causing the communication problem is not addressed, the code is likely to reappear.
8. Is the U0122 GMC code a serious issue?
- Yes, the U0122 code is a serious issue as it indicates a communication problem with an essential safety system in the vehicle, which can impact its stability and control.
9. Can a DIY enthusiast repair the U0122 code?
- Repairing the U0122 code may require advanced diagnostic tools and technical knowledge. It is recommended to consult a professional mechanic or dealership for proper diagnosis and repair.
10. How much does it typically cost to fix the U0122 GMC code?
- The cost of fixing the U0122 code can vary depending on the specific cause of the issue, parts needed for repair, and labor costs. It is advisable to get a diagnostic assessment from a qualified technician for an accurate estimate.
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