OBD-II code · Network
U0116 Lost Communication with Steering Effort Control Module
The Steering Effort Control Module has stopped transmitting on the vehicle data bus, so other control units no longer receive its messages. Speed-dependent steering assist is lost, changing the steering feel. Typical causes are loss of power or ground at the module, an open or shorted CAN/LIN bus wire, a connector fault, or an internal module failure.
Is it safe to drive with U0116?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelySteering effort module unpowered
- PossibleCAN wiring to steering effort module broken
- Less likelyGateway module routing CAN messages incorrectly
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–5 h
- Emissions test
- Usually unaffected
- Parts involved
- Steering Effort Module, Can Bus Wiring
Related codes
- U0113Lost Communication with Battery Charger A Control Module
- U0114Lost Communication with 4WD Clutch Control Module
- U0115Lost Communication with ECM/PCM "B"
- U0117Lost Communication with Drive Motor Control Module 2
- U0118Lost Communication with Cabin Air Quality Sensor Module
- U0119Lost Communication with Steering Column Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.