B0091
Left Side Restraints Sensor 1
B0091 is an OBD-II diagnostic trouble code meaning: Left Side Restraints Sensor 1. Common causes: restraint 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 B0091 is stored in the ECU memory
Causes
- Restraint sensor malfunction
- Open or short circuit in wiring harness
- Contact corrosion
- Problems with the security control module
How to Fix
- Check the integrity of the wiring harness to the sensor
- Check the condition of the sensor contacts
- Replace the faulty sensor if necessary
- Clear error memory and check if error is returned
Related codes
Error B0091 by Vehicle Brand
FAQ
What does the B0091 code mean?
B0091 is an OBD-II diagnostic trouble code that indicates: Left Side Restraints Sensor 1
What causes a B0091 error code?
The most common causes of B0091 include: Restraint sensor malfunction; Open or short circuit in wiring harness; Contact corrosion; Problems with the security control module.
How do I fix a B0091 diagnostic trouble code?
To fix B0091: Check the integrity of the wiring harness to the sensor. Check the condition of the sensor contacts. Replace the faulty sensor if necessary. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B0091?
Do not drive — repair immediately
How much does it cost to fix B0091?
The estimated repair cost for B0091 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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