OBD2 Code B0028: Right Front Side Airbag Deployment Loop Resistance Low
Reviewed by ASE Certified Mechanics · Last updated September 01, 2026
Quick Answer
B0028 = Right Front Side Airbag Deployment Loop Resistance Low
Severity: Check Soon · System: Body · ⛔ Do NOT continue driving
⚠️ STOP DRIVING — This code indicates a critical safety issue. Continuing to operate the vehicle may cause engine damage or safety hazard. Pull over safely and diagnose before continuing.
The B0028 code means Right Front Side Airbag Deployment Loop Resistance Low. Estimated repair cost: $150 – $600.
📋 Diagnostic Reference
| OBD2 Code | B0028 |
| Category | Body |
| Severity | Check Soon |
| Repair Cost | $150 – $600 |
| Can You Drive? | ⛔ NO — tow the vehicle |
🔍 Symptoms
- Airbag light on
- right side airbag may not deploy
⚠️ Most Likely Causes (in order of probability)
- Damaged seat wiring
- corroded connector under seat
- failed side airbag module
🛠️ Diagnostic Procedure
Step 1: Check seat wiring harness for damage
Check seat wiring harness for damage
Step 2: Inspect connectors under seat for corrosion
Inspect connectors under seat for corrosion
Step 3: Do NOT probe airbag circuits with multimeter.
Do NOT probe airbag circuits with multimeter.
🔧 DIY Diagnosis: Step-by-Step
Follow this diagnostic flow for B0028 (Airbag & Supplemental Restraint System (SRS)). Start at Step 1 and work your way down — the most likely fixes are listed first.
- DO NOT attempt to test or probe airbag circuits with a multimeter — accidental deployment risk is real
- Check for a clock spring issue — does the airbag light come on after steering wheel work or after turning the wheel?
- Inspect the airbag fuse — a blown fuse can set SRS codes
- Check under the seats for disconnected wiring — seatbelt pretensioner connectors often come loose
- Have a professional scan the SRS module for specific fault codes before replacing any parts
- If the light came on after interior work (radio, seats, steering), check for connectors that weren't reconnected
📊 Common Causes & Repair Costs
For B0028, here are the most likely root causes ranked by how often mechanics see them, plus typical repair costs for each.
| Rank | Cause | Frequency | Typical Cost |
|---|---|---|---|
| #1 | Clock spring failure (steering wheel wiring) |
30%
|
— |
| #2 | Disconnected or loose SRS connector under seat |
25%
|
— |
| #3 | Blown SRS fuse |
15%
|
— |
| #4 | Faulty impact sensor or wiring |
15%
|
— |
| #5 | Airbag module or squib circuit failure |
15%
|
— |
Category Repair Cost Range (Airbag & Supplemental Restraint System (SRS))
| DIY / Best Case: | $10 |
| Independent Shop: | $400 |
| Dealer / Worst Case: | $1200 |
Costs include parts + labor. Actual price varies by make, model, and your location.
🚨 Address Immediately
Can you drive? No — The airbag system may not deploy in a collision. This is a critical safety issue. Have it diagnosed and repaired before driving with passengers. A functioning airbag is essential for crash safety.
Estimated Repair Cost
Typical repair: $150–$600 (Parts + Labor) · Costs vary by make/model and location
🔌 Don't Pay $150 for a Code Read — Diagnose It Yourself
Dealerships charge $100-$200 just to scan your car and read the code. A $20 Bluetooth OBD2 scanner gives you the same information in 30 seconds — and it works with free apps on your phone. Read and clear codes yourself before deciding if you need a mechanic.
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❓ Frequently Asked Questions
Is it safe to drive with an airbag code (B0xxx)?
The car runs fine, but the airbag may NOT deploy in a crash, or it could deploy unexpectedly. This is a serious safety concern, especially if you carry passengers. Get it fixed immediately.
How much does it cost to fix an airbag code?
A blown fuse or loose connector: $0–$50. Clock spring replacement: $200–$600. Airbag module replacement: $500–$1,200+. Always have a professional diagnose SRS codes — never DIY airbag repairs.
Can I fix an airbag code myself?
Only if it's a loose connector or blown fuse. Do NOT probe airbag wiring with a multimeter — this can trigger accidental deployment. For anything beyond basic connector checks, take it to a professional.
Why did my airbag light come on after a battery disconnect?
Sometimes a battery disconnect can trigger a temporary SRS code. Try clearing the code with a scanner. If it returns, there's a real fault that needs diagnosis.
Can a B0xxx code clear itself?
No. SRS codes require a scanner to clear. Even then, if the fault persists, the light will come right back. The underlying issue must be fixed.
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