EngineLightCodes
Body code

B0028 Driver Side Curtain Air Bag Deployment Control

Severity
Fix soon
Typical repair cost
$220–$1,650
Do it yourself
Shop job
Shop time
1.0–4.0 hours

Driver Side Curtain Air Bag Deployment Control: the restraints module has detected a fault in this airbag/pretensioner deployment circuit, which may prevent correct deployment in a crash.

How the engine computer detects it

Safety-critical.

Written from public technical sources and not yet checked by a mechanic. How we write these pages

Symptoms

  • Warning light or symbol related to the affected system
  • Comfort or safety function impaired

Common causes

  1. Curtain airbag squib circuit open or shorted Most likely
  2. Wiring damage in A/B/C-pillar Possible
  3. SRS control module fault Less likely

How to diagnose B0028

  1. Read every stored code with an OBD-II scanner. If misfire or fuel trim codes are there too, fix those first: they often cause this one.
  2. Inspect the parts involved: driver curtain airbag, srs control module, srs wiring.
  3. Work through the causes above from most to least likely, cheapest checks first.
  4. Clear the code and drive a full drive cycle to confirm the repair held.

Vehicles that report B0028 most

VehicleYearsReportsMedian miles
Nissan Altima2013–20154112k
Chrysler 20020163—

Counts of owner complaints to the NHTSA that mention B0028 (12 in total), not failure rates: popular models get more complaints simply because more of them are on the road. Models with fewer than 3 complaints are left out.

Reading the code

B
Body
0
Generic (SAE) code
028
Specific fault

Questions drivers ask

Can I drive with code B0028?

The car drives normally, but with the airbag light on some airbags or seatbelt pretensioners may not work in a crash. Get the system checked soon, and leave airbag parts to a shop: they can deploy and injure you.

Often reported together

Codes that owners mention in the same NHTSA complaints as B0028. They can point to a shared cause, so it's worth checking them together.

This page is general information, not a substitute for a professional diagnosis. Repair costs are rough estimates for parts and labor and vary by vehicle and region.