Obdaryn

U0175Lost Communication With Restraints System Sensor F

  • Generic OBD-II code · Network
How the car detects it
U0175 is set when restraint sensor F stops reporting. Chrysler names it the right side satellite acceleration sensor 1 throughout the restraint code lists of the NHTSA probe PE11-019, from the 2007 Wrangler JK to the 2008 Grand Cherokee and Commander; its counterpart on the left is U0172, and B1B75 flags an internal defect of the sensor. On the passenger side the part sits low on the body structure, so wet carpets, a removed passenger seat or a slipped connector under the trim are common findings. Bosch offers single-axis sensors and two-axis versions that also measure longitudinal acceleration, which is why a mounting position and part number must match the vehicle. Side airbags must fire within milliseconds, and without F the right-hand decision is weaker. No MIL.
What you may notice
  • Airbag warning lamp on
  • Right side and curtain airbag readiness reduced
  • Fault may appear only on bumpy roads (loose contact)
Likely causes
  • LikelyMoisture in the right footwell or sill reaching the connector
  • PossibleConnector or line disturbed when the passenger seat was removed
  • PossibleRight side satellite sensor failed
  • RareWrong sensor version or mounting orientation after replacement
Repair
Workshop only · Usually a job for a workshop.Typical cost: €80 – €600

Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.