A check control message (CCM) for the restraint system (Air bag) appears
BMW technical service bulletin B650122 for 2018-2021 BMW X3 and 2019-2021 BMW X4.
- Bulletin number
- B650122
- Component
- Air bags
- Summary
- A check control message (CCM) for the restraint system (Air bag) appears. In the instrument cluster, the red air bag warning light lights up permanently. One of the following fault codes is stored in the ACSM (air bag control unit): 930949 - Knee airbag, driver: short circuit to negative terminal 93094F - Knee airbag, front passenger: short circuit to negative terminal 93094C - Knee airbag driver's side: Resistance too great 930952 - Knee airbag, front passenger: Resistance too great
Owners of these vehicles have filed 21 complaints in the airbags category.
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