Network, generic

U0476 Invalid Data Received From Restraints System Sensor F

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

U0476 is stored when restraints sensor F still reports but its values fail the receiver's checks. Chrysler's lists in NHTSA investigation PE11-019 make F the first right-side satellite acceleration sensor, fitted even to the four-sensor Wrangler JK; internal fault B1B75, lost contact U0175. The side has little crush space, so this sensor must deliver usable data within milliseconds. FMVSS 214 sets the side impact tests such sensors help pass, a moving deformable barrier and a pole impact. When the right sensor sends garbage, deployment of the right seat and curtain airbags is no longer assured. Airbag lamp on, no MIL.

Likely causes

Wiring or connector fault at the right side sensor under the pillar or sill trim
Right side sensor damaged or misaligned after a side impact or body repair
Internal fault in the satellite sensor

Symptoms

  • Airbag warning lamp on
  • Right side and curtain airbag readiness uncertain

Repair estimate

DifficultyHardWorkshop job
Parts and labour€80–500
Time0.8–2.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

restraints system sensor f

Related codes

U0175U0473U0477U0452

References: static.nhtsa.gov, law.cornell.edu, bosch-mobility.com.