B0094 Code Explained: Right Side Airbag Deployment Loop Open Circuit (Subfault)

B0094 Code Explained: Right Side Airbag Deployment Loop Open Circuit (Subfault)

If your scan tool displays B0094, your vehicle has detected an open circuit in the Right Side Airbag deployment loop. This Body (B) diagnostic trouble code (DTC) indicates a fault within the Supplemental Restraint System (SRS) that could prevent the passenger-side side-impact airbag (or right curtain airbag, depending on the vehicle) from deploying properly during a collision.

The Airbag Control Module (ACM) continuously monitors every airbag deployment circuit for electrical continuity. If it detects infinite or excessively high resistance, indicating a broken electrical path, it stores B0094 and illuminates the Airbag Warning Light.

An open circuit is most commonly caused by broken wiring, disconnected SRS connectors, damaged passenger seat harnesses, corrosion, or an internally failed side airbag module. Since this code disables part of the SRS system, it should be diagnosed and repaired immediately.

If you’re researching additional SRS or Body diagnostic trouble codes, visit our Complete OBD-II Trouble Code Guide:

https://my.prostreetonline.com/dtc-obdii

Quick Facts

ItemInformation
OBD-II CodeB0094
DescriptionRight Side Airbag Deployment Loop Open Circuit (Subfault)
CategoryBody (B) Codes
SystemSupplemental Restraint System (SRS)
Severity★★★★★ Critical
Safe to Drive?Mechanically yes, safety-wise no
Common CausesBroken wiring, disconnected connectors, damaged passenger seat harness, faulty side airbag
Typical Repair Cost$150–1,800

What Does B0094 Mean?

The B0094 code indicates the Airbag Control Module (ACM) has detected an open circuit within the Right Side Airbag deployment loop.

Depending on the manufacturer, the deployment circuit may include:

  • Passenger-side seat-mounted side airbag
  • Right curtain airbag
  • Passenger seat wiring harness
  • Right B-pillar wiring
  • SRS connectors
  • Side impact sensor
  • Airbag Control Module (ACM)

Every time the ignition is switched on, the ACM performs a self-test by measuring the resistance of every deployment loop. If the resistance is infinitely high—or outside the allowable operating range because of a broken electrical path—the ACM identifies the circuit as open and stores B0094.

If you’re troubleshooting related SRS faults, you may also find these guides helpful:

Symptoms of B0094

Common symptoms include:

  • Illuminated Airbag Warning Light
  • “Service Airbag” message
  • “SRS Fault” warning
  • Stored B0094 diagnostic code
  • Passenger-side airbag disabled
  • Additional SRS-related diagnostic trouble codes
  • No engine, transmission, steering, or braking performance issues

Although normal vehicle operation is unaffected, the passenger-side airbag may fail to deploy during a side-impact collision.

Common Causes

Broken Passenger Seat Wiring

Repeated passenger seat movement can eventually damage wiring beneath the seat.

Common failures include:

  • Broken conductors
  • Stretched wiring
  • Pinched harnesses
  • Pulled connectors

Disconnected SRS Connector

SRS connectors may become disconnected after:

  • Seat removal
  • Interior repairs
  • Collision repairs
  • Improper maintenance

Corroded Connectors

Heavy corrosion inside connectors can interrupt electrical continuity, creating an open circuit.

Faulty Side Airbag Module

An internal open circuit within the side airbag inflator may trigger B0094.

Previous Collision Damage

Improper repairs may leave behind:

  • Broken connectors
  • Damaged wiring
  • Poor electrical splices
  • Incorrect replacement components

Airbag Control Module Failure

Although uncommon, the ACM itself may incorrectly detect an open deployment loop.

How Serious Is B0094?

Extremely serious.

If the Right Side Airbag deployment circuit is disabled:

  • Passenger-side impact protection is significantly reduced.
  • Occupant injury risk increases.
  • The Supplemental Restraint System cannot provide full protection.

Repairs should be completed immediately.

Can You Drive With B0094?

Mechanically, yes.

From a safety standpoint, no.

The vehicle will generally continue operating normally, but the passenger-side airbag may not deploy during a side-impact collision.

How to Diagnose B0094

1. Scan the SRS Module

Use a professional scan tool capable of accessing manufacturer-specific Body (B) codes.

Most generic OBD-II scanners cannot communicate with the Airbag Control Module.

2. Inspect Passenger Seat Wiring

Inspect the wiring beneath the passenger seat for:

  • Broken wires
  • Pulled connectors
  • Chafed insulation
  • Previous repair damage

3. Inspect SRS Connectors

Inspect connectors for:

  • Disconnected connectors
  • Corrosion
  • Bent terminals
  • Broken locking tabs

4. Perform Continuity Testing

Using manufacturer-approved SRS diagnostic procedures, verify wiring continuity throughout the deployment circuit.

Never apply battery voltage, use a powered test light, or directly probe an airbag inflator. Airbag systems contain pyrotechnic devices that can deploy unexpectedly if improper testing methods are used.

5. Inspect the Side Airbag Module

If the wiring and connectors are within specification, inspect the passenger-side airbag module for:

  • Internal open circuits
  • Previous deployment
  • Water damage
  • Incorrect replacement parts

Common Repairs

RepairEstimated Cost
Repair passenger seat wiring$150–400
Replace SRS connector$100–250
Replace side airbag module$500–1,000
Replace passenger seat wiring harness$250–600
Replace Airbag Control Module$900–1,800

Common Diagnostic Mistakes

A common mistake is replacing the passenger-side airbag module before inspecting the passenger seat wiring and SRS connectors.

Many B0094 repairs are ultimately caused by:

  • Broken wiring beneath the passenger seat
  • Disconnected connectors
  • Corrosion
  • Previous collision repairs

Always inspect the complete deployment circuit before replacing expensive SRS components.

Vehicles Commonly Affected

B0094 may appear on vehicles from many manufacturers, including:

  • Chevrolet Silverado
  • GMC Sierra
  • Chevrolet Malibu
  • Ford F-150
  • Ford Explorer
  • Toyota Camry
  • Toyota Corolla
  • Honda Accord
  • Honda CR-V
  • Acura RDX
  • Nissan Altima
  • Hyundai Tucson
  • Kia Sportage
  • Subaru Forester
  • Mazda CX-5

Manufacturer-specific wiring diagrams, connector locations, and repair procedures vary by make and model.

How to Prevent B0094

Although not every failure can be prevented, you can reduce the likelihood of B0094 by:

  • Avoid placing objects beneath the passenger seat.
  • Protect seat wiring during interior repairs.
  • Fully reconnect SRS connectors after servicing.
  • Repair water leaks promptly.
  • Use OEM-quality SRS replacement parts.
  • Address airbag warning lights immediately.

Frequently Asked Questions

What causes B0094?

Common causes include broken passenger seat wiring, disconnected SRS connectors, damaged wiring harnesses, faulty side airbag modules, corrosion, previous collision repairs, or a defective Airbag Control Module.

Is B0094 dangerous?

Yes.

The code disables the right-side airbag deployment circuit, reducing passenger protection during a side-impact collision.

Can moving the passenger seat cause B0094?

Yes.

Repeated passenger seat movement can stretch or break wiring beneath the seat, resulting in an open circuit.

Can I clear B0094 myself?

Yes.

However, unless the underlying electrical fault has been repaired, the code will usually return during the next SRS self-test.

Will B0094 affect vehicle performance?

No.

The code only affects the Supplemental Restraint System and does not affect engine, transmission, steering, or braking performance.

Final Thoughts

The B0094 code indicates an open circuit in the Right Side Airbag deployment loop, most commonly caused by broken passenger seat wiring, disconnected SRS connectors, corrosion, previous collision repairs, or an internally faulty side airbag module.

Although the vehicle will usually continue driving normally, the passenger-side airbag may not deploy during a side-impact collision. Prompt diagnosis using manufacturer-approved SRS procedures is essential to restore full Supplemental Restraint System protection.

For additional airbag diagnostics and Body code repair guides, browse our complete Body (B) OBD-II Code Library:

https://my.prostreetonline.com/category/how-to/dtc-obdii

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