U0230
Lost Communication with Adaptive Speed Control Module
2014-2021 Mazda Mazda6 2.5L I4 🇨🇦
Moderate SeverityNetwork
Description
Cannot communicate with the adaptive cruise control or radar-based speed control module.
Symptoms
- Adaptive cruise control disabled
- Radar sensor warning
- ACC not available message
- Forward distance not displayed
Common Causes
- ACC module failure
- CAN bus wiring
- Module power loss
- Fuse blown
- Radar sensor blocked
- Front fascia damage near sensor
Diagnostic Steps
- Check ACC module fuse
- Test power and ground
- Check CAN wiring
- Clean radar sensor area
- Check for front bumper damage near sensor
- Inspect radar sensor alignment
Repair Notes
Check fuses. Radar sensor behind front grille can be blocked by ice, mud, or bumper damage.
Related Codes
Other Network Codes
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus Performance
- U0003High Speed CAN Communication Bus (+) Open
- U0004High Speed CAN Communication Bus (+) Low
- U0005High Speed CAN Communication Bus (+) High
- U0006High Speed CAN Communication Bus (-) Open
- U0007High Speed CAN Communication Bus (-) Low
- U0008High Speed CAN Communication Bus (-) High
- U0009High Speed CAN Communication Bus Shorted Together
- U0010Medium Speed CAN Communication Bus
U0230 on Other Vehicles
Common Questions
What does code U0230 mean on a 2014-2021 Mazda Mazda6?
U0230 stands for "Lost Communication with Adaptive Speed Control Module". Cannot communicate with the adaptive cruise control or radar-based speed control module.
What are the symptoms of U0230 on a Mazda Mazda6?
Common symptoms of U0230 include: Adaptive cruise control disabled, Radar sensor warning, ACC not available message, Forward distance not displayed.
What causes U0230 on a 2014-2021 Mazda Mazda6?
Common causes of U0230 include: ACC module failure, CAN bus wiring, Module power loss, Fuse blown, Radar sensor blocked, Front fascia damage near sensor.