What does code U0433 mean?

DTC codes / U04xx · Invalid data received from a module / U0433

U0433Invalid Data Received From Front Distance Range Sensor - Single Sensor or Center

U0433 means the module that supervises the front distance range sensor, often the parking assist or forward collision system, received data it considers invalid from a single sensor or the center sensor in that array. The supervising module sets this communication code when the sensor's messages are missing, out of range, or fail an internal plausibility check, so the fault is in the data link or sensor rather than in the object detection itself.

SystemNetwork

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaInvalid data received from a module

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.