Pre-Collision System Sensor Fusion Error
2014-2021 BMW i3 Range Extender
Description
The pre-collision system detects a mismatch between radar and camera object detection data.
Symptoms
- PCS temporarily disabled
- Intermittent PCS warnings
- False collision alerts or no alerts
- System unreliable in certain conditions
Common Causes
- Radar or camera misalignment
- Sensor calibration drift
- One sensor partially blocked
- Environmental interference
Diagnostic Steps
- Perform radar alignment check
- Calibrate forward camera
- Clean all sensor surfaces
- Check for software updates
- Test in controlled conditions
Repair Notes
Calibrate all PCS sensors. Perform both static and dynamic calibration as required.
Related Codes
Other Chassis Codes
- C0021LF Wheel Speed Sensor Range/Performance
- C0022RF Wheel Speed Sensor Range/Performance
- C0023LR Wheel Speed Sensor Range/Performance
- C0024RR Wheel Speed Sensor Range/Performance
- C0025LF Wheel Speed Sensor Circuit Intermittent
- C0026RF Wheel Speed Sensor Circuit Intermittent
- C0027LR Wheel Speed Sensor Circuit Intermittent
- C0028RR Wheel Speed Sensor Circuit Intermittent
- C0035Left Front Wheel Speed Sensor Circuit
- C0036Left Front Wheel Speed Signal Erratic
C0425 on Other Vehicles
BMW 3 Series F30
2012-2018 2.0L I4 Turbo N20
BMW 3 Series F30
2012-2018 3.0L I6 Turbo N55
BMW 3 Series G20
2019-2024 2.0L I4 Turbo B48
BMW 320i
2012-2015 2.0L I4 Turbo N20
BMW 328i
2012-2015 2.0L I4 Turbo N20
BMW 328i
2012-2018 2.0L Turbo I4
BMW 330i
2016-2018 2.0L I4 Turbo B48
BMW 330i
2019-2024 2.0L I4 Turbo B48
Common Questions
What does code C0425 mean on a 2014-2021 BMW i3?
C0425 stands for "Pre-Collision System Sensor Fusion Error". The pre-collision system detects a mismatch between radar and camera object detection data.
What are the symptoms of C0425 on a BMW i3?
Common symptoms of C0425 include: PCS temporarily disabled, Intermittent PCS warnings, False collision alerts or no alerts, System unreliable in certain conditions.
What causes C0425 on a 2014-2021 BMW i3?
Common causes of C0425 include: Radar or camera misalignment, Sensor calibration drift, One sensor partially blocked, Environmental interference.