U0122 Chevrolet Code - Lost Communication With Vehicle Stability Control Module
Quick Answer
Modules connected to the high speed General Motor Local Area Network (GMLAN) serial data circuits monitor for serial data communications during normal vehicle operation. Common causes include Faulty Vehicle Stability Control Module, Vehicle Stability Control Module harness is open or shorted, Vehicle Stability Control Module 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
- U0122 Chevrolet indicates Lost Communication With Vehicle Stability Control Module.
- Common causes
- Common causes include Faulty Vehicle Stability Control Module, Vehicle Stability Control Module harness is open or shorted, Vehicle Stability Control Module 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 U0122 Chevrolet Description
What are the Possible Causes of the DTC U0122 Chevrolet?
- Faulty Vehicle Stability Control Module
- Vehicle Stability Control Module harness is open or shorted
- Vehicle Stability Control Module circuit poor electrical connection
How to Fix the DTC U0122 Chevrolet?
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 U0122 Chevrolet 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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Frequently Asked Questions about U0122 Chevrolet Code
1. What does the OBDII code U0122 mean on a Chevrolet?
U0122 indicates lost communication with the Vehicle Stability Control (VSC) module, meaning the module is not transmitting or receiving data on the Controller Area Network (CAN) bus.
2. What are the common symptoms of the U0122 code on a Chevrolet?
Symptoms may include the stability control light or ABS light turning on, loss of traction control functionality, erratic handling, or difficulty maintaining stability during driving.
3. What causes the U0122 code to trigger on a Chevrolet?
Common causes include a faulty VSC module, damaged or corroded wiring or connectors in the CAN bus, a blown fuse, or a software issue in the vehicle's control modules.
4. Can I still drive my Chevrolet with a U0122 code?
While the vehicle may still be drivable, stability and traction control features may be compromised, increasing the risk of losing control, especially in slippery conditions.
5. How can I fix the U0122 code on my Chevrolet?
Start by inspecting the wiring and connectors to the VSC module for damage or corrosion, checking fuses, and ensuring the CAN bus system is functioning properly. If no issues are found, the module may need to be replaced or reprogrammed.
6. How do I locate the Vehicle Stability Control module in my Chevrolet?
The VSC module is typically located near the ABS pump assembly or under the dashboard, depending on the specific model. Consult the vehicle's repair manual for the exact location.
7. Can a low battery cause the U0122 code on my Chevrolet?
Yes, a low or weak battery can cause communication issues between modules, potentially triggering the U0122 code.
8. Do I need to reprogram the VSC module after replacing it?
Yes, in most cases, the new VSC module will need to be programmed or coded to match your Chevrolet's specifications.
9. What tools are needed to diagnose the U0122 code on a Chevrolet?
You will need an advanced OBDII scanner capable of reading CAN bus communication data and a multimeter to test wiring and connections.
10. Can a software update fix the U0122 code on my Chevrolet?
Yes, if the issue is related to a software glitch in one of the control modules, a software update from the manufacturer may resolve the problem.
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