B0093Left Side Restraints Sensor 3
- Generic OBD-II code · Body
- How the car detects it
- B0093 is the third left-side crash sensor. Mitsubishi mounts it at the left C-pillar, names it C-PILLAR SAT SEN LH and gives the J2012 wording Left Side Restraints Sensor 3. Unlike the B-pillar unit, it carries the full set of subtypes: -11 when the sensor line is shorted to ground, -55 for a configuration mismatch, -81 when communication with the sensor fails, and others, each confirmed after two seconds with the ignition on. A sensor that far back can give the module an early view of impacts behind the front door. Bosch lists C-pillars among the mounting points for its acceleration satellites, and Continental's gSAT measures acceleration in rigid structure for the same purpose. The airbag lamp lights while B0093 is stored.
- What you may notice
- Airbag warning lamp on
- Left side impact sensing behind the front door is degraded
- Safety note: airbag system; disconnect the battery and keep the wait time before work at the rear pillar, specialist workshop only
- Likely causes
- LikelySensor line shorted to ground or poor contact at the C-pillar plug (subtypes -11/-81)
- PossibleInternal fault of the C-pillar satellite sensor
- PossibleAirbag unit configuration not matching the vehicle (subtype -55)
- RareInternal fault of the airbag diagnosis unit
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €60 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.