CC-ID-3moderate severityChassis
Active Cruise Control Failure
on 2021 BMW i3 Range Extender · RWD
What this code means
The Active Cruise Control system has experienced a fault and is no longer functional. The ACC control module raised this message indicating a system malfunction requiring service.
Symptoms
- ACC completely unavailable
- Warning light on dashboard
- Standard cruise may also be affected
Common causes
- Faulty radar sensor
- ACC module failure
- Wiring or connector fault
- Software or calibration error
Diagnostic steps
- Scan ACC module for stored codes
- Inspect radar sensor and wiring
- Verify sensor calibration
- Replace faulty component as indicated
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Other Chassis codes on this vehicle
C0021
LF Wheel Speed Sensor Range/Performance
C0022
RF Wheel Speed Sensor Range/Performance
C0023
LR Wheel Speed Sensor Range/Performance
C0024
RR Wheel Speed Sensor Range/Performance
C0025
LF Wheel Speed Sensor Circuit Intermittent
C0026
RF Wheel Speed Sensor Circuit Intermittent
C0027
LR Wheel Speed Sensor Circuit Intermittent
C0028
RR Wheel Speed Sensor Circuit Intermittent
C0035
Left Front Wheel Speed Sensor Circuit
C0036
Left Front Wheel Speed Signal Erratic