Serious — S4Nissan Altima · economy tier
B0030 on Nissan Altima
The B0030 diagnostic trouble code on a Nissan Altima indicates second row left side airbag deployment control. For Nissan vehicles, this code is commonly triggered by faulty airbag module — most common cause, test before replacing or damaged or corroded wiring/connector in the airbag/srs (supplemental restraint) system circuit.
Can You Still Drive?
Drive to a shop soon. Risk of damage if ignored.
Estimated Repair Cost
$100 – $2,000
for Nissan Altima
Common on This Vehicle?
The B0030 code is relatively common on Nissan vehicles and often appears alongside other diagnostic codes.
Repair Costs for B0030 on Nissan Altima
These repairs are commonly needed to resolve the B0030 code on a Nissan Altima:
See all repair costs for Nissan Altima →Symptoms on Nissan Altima
- •Seat belt pretensioner may not deploy in a collision
- •Check Engine Light illuminated
- •Airbag/SRS warning light on — airbags may be disabled
- •Diagnostic trouble code (DTC) stored in module memory
Common Causes
- •Faulty airbag module — most common cause, test before replacing
- •Damaged or corroded wiring/connector in the airbag/SRS (supplemental restraint) system circuit
- •Blown fuse or faulty relay for the airbag/SRS (supplemental restraint) system
- •Poor ground connection — check and clean all related ground points
- •Control module fault — rare but possible, only consider after ruling out simpler causes