U0125high severityNetwork
Lost Communication with Multi-axis Acceleration Sensor
on 2010 BMW M3 E90 4.0L V8 S65 · RWD
What this code means
Cannot communicate with the multi-axis accelerometer module used for stability and rollover detection.
Symptoms
- Stability control disabled
- Rollover protection disabled
- ESC warning light on
Common causes
- Multi-axis sensor failure
- CAN bus wiring issue
- Module power loss
- Sensor damage from impact
Diagnostic steps
- Check sensor module fuse
- Test power and ground
- Inspect CAN wiring
- Check sensor for physical damage
- Test sensor output
Repair notes
Multi-axis sensors are used in rollover protection systems. Critical safety component.
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Other Network codes on this vehicle
CC-ID-181
System Check Failed
CC-ID-207
Central Electronics Failure, Stop Vehicle
U0001
High Speed CAN Communication Bus
U0002
High Speed CAN Communication Bus Performance
U0003
High Speed CAN Communication Bus (+) Open
U0004
High Speed CAN Communication Bus (+) Low
U0005
High Speed CAN Communication Bus (+) High
U0006
High Speed CAN Communication Bus (-) Open
U0007
High Speed CAN Communication Bus (-) Low
U0008
High Speed CAN Communication Bus (-) High