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1999 BMW 528IT E39
2.8L I6 M52 Touring•RWD•AUTOMATIC•gas
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Repairs0Labor491Torque2161Fluid8DTC1210Battery1Maintenance0Recalls0
B0025critical severityBody

Driver Curtain Airbag Circuit Resistance Low

on 1999 BMW 528iT E39 2.8L I6 M52 Touring · RWD

What this code means

The driver side curtain airbag circuit resistance is lower than specification, possibly indicating a short between deployment leads.

Symptoms

  • Airbag warning light on
  • SRS fault stored
  • Risk of premature deployment

Common causes

  • Partial short between deployment wires
  • Contaminated connector
  • Damaged wiring insulation
  • Faulty squib

Diagnostic steps

  1. Disconnect battery and wait 10 minutes
  2. Measure circuit resistance
  3. Inspect wiring for insulation damage
  4. Check for contamination in connector

Repair notes

Repair any insulation damage. Replace curtain airbag if squib is faulty. Professional service required.

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