OBD-II code · Network
U0124 Lost Communication with Lateral Acceleration Sensor Module
The Lateral Acceleration Sensor Module has stopped transmitting on the vehicle data bus, so other control units no longer receive its messages. Stability and rollover functions lose their lateral-acceleration input. 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 U0124?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyLateral acceleration sensor unpowered
- PossibleCAN wiring to lateral accel sensor 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
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Lateral Acceleration Sensor, Can Bus Wiring
Related codes
- U0121Lost Communication with ABS Control Module
- U0122Lost Communication with Vehicle Dynamics Control Module
- U0123Lost Communication with Yaw Rate Sensor Module
- U0125Lost Communication with Multi-axis Acceleration Sensor
- U0126Lost Communication with Steering Angle Sensor Module
- U0127Lost Communication with Tire Pressure Monitor Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.