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2021 BMW I3
Range Extender•RWD•AUTOMATIC•hybrid
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Repairs0Labor318Torque3717Fluid6DTC2228Battery1Maintenance0Recalls0
CC-ID-247moderate severityBody

Battery Monitoring Failed

on 2021 BMW i3 Range Extender · RWD

What this code means

This message indicates a failure of the intelligent battery sensor or battery monitoring function. It is raised by the power management system.

Symptoms

  • Battery monitoring warning displayed
  • Inaccurate charge state readings
  • Start-stop or charging anomalies

Common causes

  • Faulty intelligent battery sensor
  • Sensor wiring/connector fault
  • Ground connection issue
  • Power management module fault

Diagnostic steps

  1. Scan power management module for faults
  2. Test intelligent battery sensor
  3. Inspect sensor wiring and ground
  4. Verify battery terminal connections
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