U0123
Lost Communication with Yaw Rate Sensor Module
2016-2021 Mazda CX-3 2.0L I4
Moderate SeverityNetworkGeneric (SAE)
Description
Cannot communicate specifically with the yaw rate sensor that measures vehicle rotation.
Symptoms
- Stability control disabled
- ESC warning light
- Yaw rate data unavailable
- Traction control off
Common Causes
- Yaw rate sensor failure
- Wiring damage
- Module power loss
- CAN bus issue
- Sensor mounting loose
Diagnostic Steps
- Check sensor fuse
- Test sensor power and ground
- Check CAN bus wiring
- Inspect sensor mounting
- Test sensor output
Repair Notes
Yaw rate sensor typically mounted centrally in vehicle. Check mounting and wiring.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
- U0004High Speed CAN Communication Bus (+) Low
- U0005High Speed CAN Communication Bus (+) High
- U0005High Speed CAN Communication Bus (+) High
U0123 on Other Vehicles
Common Questions
What does code U0123 mean on a 2016-2021 Mazda CX-3?
U0123 stands for "Lost Communication with Yaw Rate Sensor Module". Cannot communicate specifically with the yaw rate sensor that measures vehicle rotation.
What are the symptoms of U0123 on a Mazda CX-3?
Common symptoms of U0123 include: Stability control disabled, ESC warning light, Yaw rate data unavailable, Traction control off.
What causes U0123 on a 2016-2021 Mazda CX-3?
Common causes of U0123 include: Yaw rate sensor failure, Wiring damage, Module power loss, CAN bus issue, Sensor mounting loose.