U0230moderate severityNetwork
Lost Communication with Adaptive Speed Control Module
on 2015 Kia Forte 1.8L I4 · FWD
What this code means
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.
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ANCEL AD410 →
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Serious DIY~$100
BlueDriver Pro →
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Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
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Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
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Other Network codes on this 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
U0009
High Speed CAN Communication Bus Shorted Together
U0010
Medium Speed CAN Communication Bus