Lost Communication with Multi-axis Acceleration Sensor
The Multi-axis Acceleration Sensor has stopped transmitting on the vehicle data bus, so other control units no longer receive its messages. Several stability and airbag functions lose their motion reference. 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.
Affected components
- Yaw rate sensor
- Can bus wiring
Common causes
- High likelihood: Yaw sensor unpowered
- Medium likelihood: CAN wiring to yaw sensor broken
- Low likelihood: Gateway module routing CAN messages incorrectly
Possible 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
Diagnostic notes
- The malfunction indicator lamp may illuminate
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.