U0533Invalid Data Received From Side Obstacle Detection Control Module A
- Generic OBD-II code · Network
- How the car detects it
- Side obstacle detection modules are the corner radars behind the rear bumper that watch blind spots and crossing traffic. GM and Ford give letter A to the left unit: the 2011 Saab 9-5 code list names U0232 for the left side-object module, and Ford bulletin 24-2180 (Expedition/Navigator 2022-2024) logs U0232 in Ford's IPMA camera module together with faults of the left radar. Toyota instead labels U0232 as the slave sensor on the Tacoma. U0533 itself appears in no published manufacturer text; it would be set when the left module's frames reach the receiver but carry invalid content. The Ford case shows that mud, ice or corrosion at the sensor trigger false Blind Spot Not Available warnings. Blind spot and cross traffic alerts then switch off. U0232 is total loss, U0534 the right unit.
- What you may notice
- Blind spot monitoring unavailable message
- Left mirror warning indicator inoperative
- Rear cross traffic alert switched off
- Likely causes
- LikelyMud, ice or damage at the left rear radar, bracket or bumper cover
- PossibleWater or corrosion in the radar connector or harness
- PossibleRadar module software or configuration fault
- Repair
- Medium · Usually a job for a workshop.Typical cost: €50 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.