What does code U355D mean?

Q: What does code U355D mean?

Expander Inlet Pressure Sensor 1 Circuit. U355D is a generic network communication code indicating that a control module has lost or received invalid data from the Expander Inlet Pressure Sensor 1 circuit. The computer detected a fault in the serial data or signal circuit that carries pressure information from this sensor, which is typically used in air suspension or central tire inflation systems to monitor inlet pressure.

DTC codes / U35xx · Network communication / U355D

U355DExpander Inlet Pressure Sensor 1 Circuit

U355D is a generic network communication code indicating that a control module has lost or received invalid data from the Expander Inlet Pressure Sensor 1 circuit. The computer detected a fault in the serial data or signal circuit that carries pressure information from this sensor, which is typically used in air suspension or central tire inflation systems to monitor inlet pressure.

SystemNetwork

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaNetwork communication

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

Reading U355D

UNetwork: communication between the vehicle's control modules.

3Generic (SAE) code: it means the same thing on every OBD-II vehicle.

5Network communication.

5DThe exact fault within that area.

Often seen with

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