What does it mean?
B1932 is a Body (airbags, seat belts, body electronics) fault code. It indicates: Driver-Side Air Bag Module (Inflator No.1) Circuit Resistance High .
Symptoms
- Air bag warning lamp on constantly and the driver air bag disabled
- Horn and steering wheel switches may also stop working, which points to the clockspring
- Fault often appears immediately after steering wheel, air bag or column repair
- Warning may come and go as the steering wheel is turned
- Restraint system message on the driver information display
Likely causes
- Clockspring ribbon broken, the classic failure after the wheel has been turned to full lock with the clockspring uncentred or after column work
- Air bag connector at the back of the steering wheel not fully seated, or its retaining clip not pushed home
- Fretting corrosion and pin wear in the air bag or clockspring connector
- Internal open in the driver air bag inflator (squib)
- Broken conductor in the column loom where it flexes with the tilt mechanism
- Terminal damaged by probing or by forcing the connector during a previous repair
- Restraint control module connector or output fault
How to fix it
- Follow the air bag safety procedure: ignition off, battery disconnected, prescribed stand time completed
- Ask whether the fault started after steering or air bag work, since incorrect clockspring installation is a very common cause
- Check whether horn and wheel buttons still work, because losing several column circuits together points straight at the clockspring
- Disconnect the driver air bag, inspect the connector for a partly seated housing, an unlocked clip, pin fretting and corrosion, then reseat it firmly
- Fit the manufacturer approved test load in place of the air bag: if the code changes to a shorted or normal condition, the air bag module or the wiring upstream is identified
- Turn the wheel slowly lock to lock while monitoring to catch a clockspring that opens at a certain position
- Replace the driver air bag module if the open is inside it, and the restraint control module only as the last step