Generic SAE-standard code: same meaning on every make.
406
Specific fault index within the subsystem.
Frequently asked questions about U0406
What does U0406 mean?
Invalid data received - injector control module. The control module registered the fault condition described as "Invalid data received - injector control module".
Is U0406 generic or manufacturer-specific?
U0406 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove U0406 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 U0406 is removable in your case.
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