Lost Communication With Vehicle Dynamics Control Module
The U0165 code means the vehicle's onboard diagnostic system has detected: Lost Communication With Vehicle Dynamics Control Module. This is a critical severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- hard
- Estimated cost
- $300 - $1200 (parts and labor)
Network codes mean modules are not communicating. You need a scanner that reads all systems to find the problem.
Check Price on AmazonAffiliate link -- we earn a commission at no extra cost to you.
Common Symptoms
- Stability control warning light on
- Traction control system disabled
- ABS warning light illuminated
- Vehicle may feel unstable in turns
- Electronic stability program fault message
Probable Causes (Ranked by Likelihood)
- Failed vehicle dynamics control module Very High
- Damaged CAN bus wiring to stability module High
- Corroded ground connection at chassis Moderate
- Water damage to module or connectors Moderate
Step-by-Step Diagnostic Procedure
-
Check for power and ground at the vehicle dynamics module
-
Inspect CAN bus wiring for damage or corrosion
-
Verify the module ground connection at the chassis
-
Scan for additional codes in ABS and stability control systems
-
Check for water intrusion around the module mounting location
Frequently Asked Questions
Can I drive with code U0165?
Drive only short distances at low speed. Without stability and traction control, the vehicle is more prone to losing control especially in wet or icy conditions.
What causes U0165?
Most commonly caused by a failed vehicle dynamics control module or damaged CAN bus wiring. European vehicles are particularly prone to connector corrosion.
Is U0165 expensive to fix?
Repair costs range from $300 to $1200. Module replacement with programming is on the higher end while wiring repairs are more affordable.
Sources
This page is built from documented references. Verify against your own service info before repair work.
Explore More
Was this helpful?
Share carcodefinder.com with a friend who needs to decode their check engine light.