B0042
Side Deployment Loop Open
A generic open-circuit fault has been reported in a side airbag deployment loop. Refer to vehicle service data to determine the affected side and stage.
A generic open-circuit fault has been reported in a side airbag deployment loop. Refer to vehicle service data to determine the affected side and stage.
Common causes
- high
Disconnected seat connector
One of the most commonly reported causes for this code — check this first.
Typical part cost: $130-990
- medium
Broken wire in seat harness
A plausible cause — test and verify before replacing parts.
Typical part cost: $130-990
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does B0042 mean?
B0042 means "Side Deployment Loop Open (Generic)". It is a generic OBD-II code that points to a fault in the body.
What are the most common causes of B0042?
disconnected seat connector; broken wire in seat harness — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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