B0090
Left Frontal Restraints Sensor
B0090 is an OBD-II diagnostic trouble code meaning: Left Frontal Restraints Sensor. Common causes: left front airbag sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.
Symptoms
- Airbag light is on
- The passive safety system may not work in an accident.
- Error B0090 in the diagnostic scanner memory
Causes
- Left front airbag sensor malfunction
- Open or short circuit in wiring harness
- Problems with the airbag control module
- Corrosion of contacts or connectors
How to Fix
- Check the resistance of the left front airbag sensor
- Inspect the wiring harness for damage
- Check connectors and contacts for corrosion
- Replace faulty sensor or wiring harness
- Reset the error and check the system
Related codes
Error B0090 by Vehicle Brand
FAQ
What does the B0090 code mean?
B0090 is an OBD-II diagnostic trouble code that indicates: Left Frontal Restraints Sensor
What causes a B0090 error code?
The most common causes of B0090 include: Left front airbag sensor malfunction; Open or short circuit in wiring harness; Problems with the airbag control module; Corrosion of contacts or connectors.
How do I fix a B0090 diagnostic trouble code?
To fix B0090: Check the resistance of the left front airbag sensor. Inspect the wiring harness for damage. Check connectors and contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B0090?
Do not drive — repair immediately
How much does it cost to fix B0090?
The estimated repair cost for B0090 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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