Fault Code B0121
Code meaning, symptoms, possible causes, part number, and estimated cost.
B0121
B0121 Driver Front Airbag Deployment Loop 2 Short to Ground
This code indicates a short circuit to ground in the driver front airbag deployment loop 2. This fault can prevent proper airbag deployment or cause an unintended deployment. Airbag repairs should only be performed by a qualified garage.
Part Details
Part Name
Driver Front Airbag
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪1200 - ₪3500
Engine Location
Driver front airbag deployment loop 2
Symptoms
- Airbag (SRS) warning light illuminated
- Airbag system malfunction
- Warning message on dashboard
- Airbag may not deploy correctly
Possible Causes
- 1Damaged or chafed wiring touching ground
- 2Internal loop short to ground
- 3Faulty airbag (SRS) control module
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