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2021 BMW I3
Range Extender•RWD•AUTOMATIC•hybrid
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Repairs0Labor318Torque3717Fluid6DTC2228Battery1Maintenance0Recalls0
CC-ID-603high severityChassis

Braking System Sensor Malfunction

on 2021 BMW i3 Range Extender · RWD

What this code means

A sensor in the braking system is malfunctioning. Raised by the brake control module.

Symptoms

  • Brake warning light
  • Erratic brake assist
  • Sensor fault message

Common causes

  • Faulty wheel speed sensor
  • Brake pressure sensor fault
  • Damaged sensor wiring
  • Corroded connector

Diagnostic steps

  1. Scan brake module for sensor codes
  2. Inspect sensor wiring and connectors
  3. Test sensor signals
  4. Replace faulty sensor
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