What does code U0445 mean?

Q: What does code U0445 mean?

Invalid Data Received From Body Control Module D. U0445 is a communication fault indicating that the Body Control Module D (BCM-D) is sending data that other modules on the vehicle network consider invalid or corrupted. The computer detected a message from BCM-D that failed its internal validity checks, such as a checksum error or missing expected data fields, rather than a complete loss of communication.

DTC codes / U04xx · Invalid data received from a module / U0445

U0445Invalid Data Received From Body Control Module D

U0445 is a communication fault indicating that the Body Control Module D (BCM-D) is sending data that other modules on the vehicle network consider invalid or corrupted. The computer detected a message from BCM-D that failed its internal validity checks, such as a checksum error or missing expected data fields, rather than a complete loss of communication.

SystemNetwork

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

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.