What does code U0423 mean?

Q: What does code U0423 mean?

Invalid Data Received From Instrument Panel Control Module. U0423 means the instrument panel control module (often called the IPC or cluster) is sending data that other modules on the vehicle's controller area network (CAN) bus consider invalid or implausible. The code is stored by a module that expected reliable information from the cluster, such as vehicle speed, warning lamp status, or odometer data, but received a message it could not trust.

DTC codes / U04xx · Invalid data received from a module / U0423

U0423Invalid Data Received From Instrument Panel Control Module

U0423 means the instrument panel control module (often called the IPC or cluster) is sending data that other modules on the vehicle's controller area network (CAN) bus consider invalid or implausible. The code is stored by a module that expected reliable information from the cluster, such as vehicle speed, warning lamp status, or odometer data, but received a message it could not trust.

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.