B0028: Right side airbag firing circuit open or high resistance (Honda, Chrysler, Ram)

Right side airbag circuit open / squib circuit

Severity: Inspect soon

An open or high-resistance airbag circuit means the computer cannot confirm that airbag will fire. Honda's and Toyota's owner's manuals say a lit airbag light needs prompt attention because the airbags or belt tensioners may not work as designed.

Safety-critical system: explanation only, no DIY steps. Source: how we rate severity

B0028 in short

On Honda, Chrysler and Ram, B0028 means the airbag computer found an open circuit or high resistance in the right side airbag circuit. The airbag light comes on and that airbag may not deploy. Repairs found in complaints are at connectors or the seat harness. Have it checked soon; never probe airbag wiring yourself.

The airbag computer tests the resistance of every firing circuit at startup. B0028 is stored when the right side airbag circuit reads open or too high, so the airbag light comes on and that airbag may not deploy.

Honda searched for 2018 to 2020 Accords and CR-Vs with B0020-13 or B0028-13 and an SRS light. Owners of 2016 Chrysler 200s and Ram 1500s report dealers finding the open circuit in the connector or harness under or inside the passenger seat.

Other makers also set B0028, including Nissan and Jeep, but we did not find enough sources for their meaning, so this page speaks for Honda, Chrysler and Ram.

Most likely causes

Cause 1: Connector or harness under or inside the passenger seat
Supported by vehicle data
Why it ranks here
Chrysler and Ram complaints quote dealers and mechanics finding the open circuit at the seat connectors or seat back harness, and replacing the harness fixed it.
What would change this
Rises if a wiggle test of the seat harness makes the code come and go. Falls if the harness checks good.

What to test first

Start at step 1. Each result tells you what it means and where to go next.

Step 1: Have the airbag codes read with a scan tool that can talk to the airbag module, and note every code stored.
Low riskTool: scan tool with airbag (SRS) access
- IfB0028 is stored, with or without B0020
  It meansThe right side airbag circuit reads open or high.
  Go to step 2
- IfOther airbag codes are stored as well
  It meansA technician should work through them in the order the service manual gives.
  Go to step 3
Step 2: Give your VIN to the dealer and ask whether a service bulletin or warranty extension covers this code on your car.
Low risk
- IfA bulletin or extension applies
  It meansThe dealer repairs it under the bulletin.
  Go to step 3
- IfNothing applies
  It meansThe circuit still needs a diagnosis.
  Go to step 3
Step 3: Leave the diagnosis to a dealer or trained technician, who measures the circuit with the service manual procedure.
Best left to a shopTool: scan tool with airbag access, manufacturer procedure
Warning:Airbag wiring can set off an airbag if it is probed, disconnected or powered the wrong way, and that can cause serious injury. Do not test or unplug airbag connectors yourself.
- IfThe seat harness or connector is at fault
  It meansThe harness or connector is repaired.
  Points to: Connector or harness under or inside the passenger seat

Symptoms

Airbag (SRS) warning light stays on after the engine starts

How to fix

This is a safety-critical system, so we explain the code but don't give repair steps. Have it inspected by a qualified technician.

Parts and cost context

Passenger seat airbag harness and connectors:Dealer or trained-technician work. Labour varies; get a quote.

Labor varies by vehicle and shop; get a quote before you approve a repair.

Compare used part prices on PartPriceGuide

On your vehicle

Chrysler

2016 · 200
Supported by vehicle data
Two complaints say a dealer or mechanic found B0028-13 and fixed it with an updated wiring harness or new connectors under the passenger seat. Whether FCA still offers this is not verified.

All Airbags and seat-belt restraints (SRS) codes

Sources and review

2023 Accord Owner's Manual: Airbag System Indicators — American Honda Motor Co.
Camry Owner's Manual (OM06291U) — Toyota
Honda dealer message: 2018-2020 Accord and 2019-2020 CR-V with SRS light on and DTC B0020-13 or B0028-13 — American Honda Motor Co. , July 28, 2021
NHTSA complaint ODI 1532098 (2016 Chrysler 200) — NHTSA Office of Defects Investigation
NHTSA complaint ODI 1813648 (2016 Chrysler 200) — NHTSA Office of Defects Investigation
NHTSA complaint ODI 1385055 (2014 Ram 1500) — NHTSA Office of Defects Investigation
NHTSA complaint ODI 1776964 (2017 Ram 1500) — NHTSA Office of Defects Investigation
NHTSA complaint ODI 2211544 (2016 Honda Odyssey) — NHTSA Office of Defects Investigation

Last reviewed: October 15, 2026
Written by: Saurabh K.
Editorial review: Pending
Technician review: Technician review pending

This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error

Severity: Inspect soon

Most likely causes

Cause 1: Connector or harness under or inside the passenger seat

What to test first

Step 1: Have the airbag codes read with a scan tool that can talk to the airbag module, and note every code stored.

Step 2: Give your VIN to the dealer and ask whether a service bulletin or warranty extension covers this code on your car.

Step 3: Leave the diagnosis to a dealer or trained technician, who measures the circuit with the service manual procedure.