Generic SAE-standard code: same meaning on every make.
4AD
Specific fault index within the subsystem.
Frequently asked questions about U04AD
What does U04AD mean?
Invalid Data Received From Hybrid/EV Battery Interface Control Module M. The control module registered the fault condition described as "Invalid Data Received From Hybrid/EV Battery Interface Control Module M".
Is U04AD generic or manufacturer-specific?
U04AD is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove U04AD 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 U04AD is removable in your case.