B0023critical severityBody
Driver Curtain Airbag Circuit Resistance High
on 1999 BMW 528iT E39 2.8L I6 M52 Touring · RWD
What this code means
The driver side curtain airbag circuit resistance is higher than specification, indicating a poor connection or damaged squib.
Symptoms
- Airbag warning light on
- SRS fault stored
- Curtain airbag may not deploy properly
Common causes
- Corroded connector pins
- High-resistance wire splice
- Faulty airbag squib
- Oxidized terminals
Diagnostic steps
- Measure circuit resistance and compare to spec
- Inspect connector pins for corrosion
- Check wire splices
- Test airbag squib resistance
Repair notes
Clean corroded connectors or replace curtain airbag module. Ensure connections meet resistance specifications.
Other Body codes on this vehicle
B0001
Driver Frontal Stage 1 Deployment Control
B0002
Driver Frontal Stage 2 Deployment Control
B0003
Passenger Frontal Stage 1 Deployment Control
B0004
Passenger Frontal Stage 2 Deployment Control
B0005
Driver Knee Airbag Deployment Circuit
B0006
Passenger Knee Airbag Deployment Circuit
B0010
Driver Side Airbag Deployment
B0011
Driver Side Airbag Deployment Circuit Open
B0012
Driver Side Airbag Deployment Circuit Short to Ground
B0013
Driver Side Airbag Deployment Circuit Short to Battery