U0471Invalid Data Received From Restraints System Sensor A
- Generic OBD-II code · Network
- How the car detects it
- U0471 is logged when the airbag controller still receives telegrams from restraints sensor A but rejects their content, for example because of a parity error, a reading outside the sensor's range or values that contradict the other crash sensors. Lost contact would be U0170. In Chrysler's diagnostic lists for the 2008 Jeep Wrangler, Compass, Patriot and Liberty, filed with NHTSA in investigation PE11-019, letter A stands for the left-hand up-front satellite, an acceleration sensor, with B1B70 for its internal fault. GM uses the letter differently: Saab's 2011 9-5 code list names U0170 as the passenger presence detection module, so on GM-based cars sensor A may belong to occupant sensing. Acura reports a silent left front sensor under its own code B0090. Expect the airbag lamp and weaker frontal crash sensing; no MIL.
- What you may notice
- Airbag warning lamp stays on
- Fault code stored in the restraints control module, sometimes with an internal sensor code
- Likely causes
- LikelyWater or corrosion at the connector of a front satellite sensor in the engine bay
- PossibleSensor or its bracket deformed by a minor frontal impact
- RareReplacement sensor of the wrong part number or orientation fitted
- Repair
- Hard · Usually a job for a workshop.Typical cost: €60 – €450
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.