Obdaryn

U0179Lost Communication With Restraints System Sensor J

  • Generic OBD-II code · Network
How the car detects it
U0179 closes the J2012 block for remote restraint sensors and names sensor J, the tenth position (the letter I is used as well, see U0178). The airbag control unit checks that each connected satellite keeps sending; if sensor J falls silent, the unit stores U0179, switches on the airbag warning lamp and may disable the deployment paths that rely on it. No manufacturer documents U0179 publicly, and Chrysler's published Jeep list stops at the sixth satellite (U0176), so this code is rare. Bosch describes peripheral sensors in front, side and rear positions, which explains why up to ten slots exist. U0170 to U0178 cover sensors A to I, U0151 the airbag unit itself. No MIL; repairs only by trained staff.
What you may notice
  • Airbag warning lamp on
  • Restraint deployment relying on sensor J may be disabled
  • Scan tool shows sensor J as not responding
Likely causes
  • LikelyConnector at sensor J loose or corroded
  • PossibleOpen or shorted line between sensor J and the airbag unit
  • PossibleCrash sensor J failed, e.g. after a minor impact
  • RareAirbag control unit input faulty
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.