U0173Lost Communication With Restraints System Sensor D
- Generic OBD-II code · Network
- How the car detects it
- U0173 tells that the airbag control unit no longer receives data from remote crash sensor D. Such satellite sensors sit in the crumple zone, doors or pillars and report acceleration in one or two axes so the control unit can judge direction and severity of an impact. Chrysler documents the code: in its 2006-2010 Jeep airbag code list U0173 stands for the second left-side satellite acceleration sensor, beside U0170/U0171 (front left/right), U0172 (left side 1) and U0175/U0176 (right side). Which position letter D has on other makes is their choice. The airbag warning lamp lights, protection on that side may be reduced, and there is no MIL. Diagnosis and repair belong to trained staff only.
- What you may notice
- Airbag warning lamp on
- Side impact detection on the affected side reduced
- Code stays active until the sensor link is restored
- Likely causes
- LikelyLoose or corroded connector at satellite sensor D
- PossibleSensor line damaged, e.g. in the door or pillar area
- PossibleSatellite sensor D failed (water ingress, impact)
- RareSensor input of the airbag control unit faulty
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €80 – €600
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.