OBD-II code · Network
U0433 Invalid Data Received From Front Distance Range Sensor — Single Sensor or Center
A receiving module detected implausible data from the front distance range sensor (single or center-mounted long-range radar/lidar). Distance/closing-speed values fail plausibility checks and are rejected by ACC/AEB.
Is it safe to drive with U0433?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyModule internal fault or sensor input drift
- PossibleSoftware version mismatch after replacement
- Less likelyGateway module routing CAN messages incorrectly
Symptoms
- Multiple warning lights may illuminate
- Affected modules may go into limp mode or shut down
- Specific functions inoperative depending on module
- Diagnostic tools may show communication faults
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Front Distance Sensor Center
Related codes
- U0430Invalid Data Received from Tire Pressure Monitoring Sensor
- U0431Invalid Data Received from Body Control Module
- U0432Invalid Data Received from 4-Wheel Drive Clutch Control Module
- U0434Invalid Data Received From Active Roll Control Module
- U0435Invalid Data Received From Power Steering Control Module — Rear
- U0436Invalid Data Received From Differential Control Module — Front
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.