What does code U0353 mean?

Q: What does code U0353 mean?

Software Incompatibility With Ion Sense Module. U0353 is a network communication fault indicating that a control module has detected a software incompatibility with the ion sense module, which is used on some engines to monitor combustion quality via the spark plug. The computer has compared software versions or calibration identifiers over the controller area network (CAN) bus and found a mismatch that prevents proper ion sense operation.

DTC codes / U03xx · Software and configuration mismatches / U0353

U0353Software Incompatibility With Ion Sense Module

U0353 is a network communication fault indicating that a control module has detected a software incompatibility with the ion sense module, which is used on some engines to monitor combustion quality via the spark plug. The computer has compared software versions or calibration identifiers over the controller area network (CAN) bus and found a mismatch that prevents proper ion sense operation.

SystemNetwork

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

AreaSoftware and configuration mismatches

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