B0281

Code

Generic B — Body

Right Side Airbag Inflator Circuit Short to Ground

Brand: Generic

Type: B — Body

Views: UK: 16 EN: 25 RU: 13

AI status

Completed

ready

Completed 100%

Page language: EN

Causes

Damaged or chafed wiring contacting chassis ground
Corroded, bent or pushed-out connector pin at the right-side inflator or intermediate connector
Water intrusion or contamination in connector(s) causing a low-resistance path to ground
Failed airbag inflator (internal short in the squib)
Poor or improper previous repair (pinched harness, aftermarket accessories)
Faulty SRS/airbag control module or internal module wiring fault

Symptoms

SRS/airbag warning lamp ON (illumination of airbag indicator)
Possible airbag indicator or SRS message displayed on instrument cluster
Right-side (seat or door) airbag circuit disabled — no deploy on that side in a crash
No drivability symptoms (engine runs normally)
Codes may reappear immediately after clearing if fault is present

What to check

Read and record all stored SRS codes and freeze-frame data with a proper scan tool
Verify battery state and system voltage before starting diagnostics
Confirm vehicle-specific safety procedure for disabling the SRS (disconnect battery and wait manufacturer-specified time) before touching airbag connectors or wiring
Perform a careful visual inspection of the right-side seat/door wiring harness, connectors, and mounting points for chafing, pin damage, corrosion or water intrusion
Inspect for accident damage or previous repairs in the right side area
Check for aftermarket equipment routed near the airbag harness (speakers, alarms, etc.)

Signal parameters

Expected squib circuit resistance: low-ohm resistance across squib terminals (vehicle-specific — consult service manual); a near-zero ohm reading from squib circuit to chassis ground indicates a short to ground
With harness disconnected and SRS disabled: inflator-to-ground: infinite/open (no continuity) normally — measured continuity (low Ω) indicates short to ground
With key ON and SRS system active, the SRS control module will monitor circuit continuity and report a short condition; do not apply power directly to the squib circuit (risk of deployment)

Diagnostic algorithm

Safety first: Park vehicle, remove ignition key, consult service manual for SRS disabling procedure. Disable SRS power (disconnect battery) and wait the manufacturer-recommended time before working on airbag circuits.
Use a manufacturer-level scan tool to read and record the code(s), freeze frame data and any related SRS codes. Clear codes, then attempt to re-run to confirm persistence.
Perform visual inspection of right-side seat/door area harness and connectors for damage, corrosion, water, or signs of previous repair. Check seat-to-floor harness routing and seat-belt pretensioner area if applicable.
Locate the right-side inflator connector and any intermediate connectors/splices. With battery still disconnected and SRS disabled, disconnect the inflator connector.
Measure resistance (ohms) between inflator circuit pins and chassis ground. A low resistance (near 0 Ω) indicates a short to ground. Also measure resistance across the inflator squib terminals and compare to spec.
If a short to ground is present at the inflator connector, isolate the circuit by disconnecting successive connectors (work back toward the SRS control module) while repeating resistance checks to find the section of harness with the short.
If short is located in the harness, repair by replacing or repairing the damaged section using proper SRS-grade connectors and routing. If the short is at the inflator (internal), replace the inflator module only with OEM specified part.
If measurements show open/infinite resistance where a known-good squib should have low-ohm continuity, check for open circuit or connector faults; if module internal fault suspected, consult service information — module replacement or bench testing may be required.
After repair or replacement, reconnect connectors, reconnect the battery and use the scan tool to clear codes and verify that B0281 does not return and that SRS readiness tests pass.
If fault persists after wiring and inflator verified, consider SRS control module fault and follow OEM procedures for module testing, reprogramming or replacement.

Likely causes

Wiring chafe or connector short to body ground near the right-side seat/door area
Corrosion or water-damaged connector at the inflator or an in-line splice/connector
Damaged inflator/squib with internal short to ground

Fault status

⚠️ Status

SRS control module detected a short-to-ground on the right-side airbag inflator (squib) circuit and stored DTC B0281. The right-side deployment circuit may be disabled until the fault is repaired.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1-3 hours