What Does U0110 Mean?
Communication has been lost with the electric drive motor control module in hybrid or electric vehicles. This prevents proper monitoring and control of the traction motor and associated power electronics.
Safety Warning
Vehicle may not operate or may shut down unexpectedly. Do not drive until repaired. Hybrid vehicles may have limited or no propulsion capability.
Common Causes
35%
Drive motor control module internal failure
30%
High voltage system wiring damage or connector issues
20%
CAN bus communication circuit fault
10%
12V auxiliary power loss to control module
5%
Module overheating or cooling system failure
Diagnostic Steps
1
Step 1: Verify high voltage system is disabled and safe before any inspection (follow manufacturer safety procedures)
2
Step 2: Check 12V auxiliary power supply and ground to drive motor control module
3
Step 3: Inspect high voltage connectors and low voltage communication wiring for damage or corrosion
4
Step 4: Test CAN bus communication signals at motor control module connector
5
Step 5: Check motor control module cooling system operation and verify no overheating conditions
Estimated Repair Cost
$300 - $3,500
Parts + labor, varies by vehicle and location
Communication has been lost with the electric drive motor control module in hybrid or electric vehicles. This prevents proper monitoring and control of the traction motor and associated power electronics.
The most common cause of U0110 (Lost Communication With Drive Motor Control Module) is: Drive motor control module internal failure
Typical repair costs for U0110 range from $300 to $3,500, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Vehicle may not operate or may shut down unexpectedly. Do not drive until repaired. Hybrid vehicles may have limited or no propulsion capability.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to U0110 to identify the root cause.
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Quick Info
Category
Network
System
Electric Propulsion / Network Communication
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
A quality scan tool helps you read codes, view live data, and clear faults.
