The control module stopped receiving expected network messages from the Engine Disconnect Clutch node on the vehicle communication bus.
TuningBot DTC Database · v4.37.15
U02AA Lost Communication With Engine Disconnect Clutch
Generic (OBD-II) interpretation in the TuningBot DTC database.
What U02AA means
Related and nearby codes
How to read U02AA
Network: communication between control units.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Frequently asked questions about U02AA
What does U02AA mean?
Lost Communication With Engine Disconnect Clutch. The control module stopped receiving expected network messages from the Engine Disconnect Clutch node on the vehicle communication bus.
Is U02AA generic or manufacturer-specific?
U02AA is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove U02AA at file level?
Not guaranteed. Powertrain (P) codes can be reliably disabled in the ECU calibration, but body, chassis and network codes depend on the specific control unit and how the fault is implemented - some can be handled, some cannot. Ask for a quote and our engineers will check your file and tell you, free of charge, whether U02AA is removable in your case.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
