TuningBot DTC Database · v4.37.15
Manufacturer-specific interpretation for Lexus. All interpretations of P1083
The control module determined that the HC catalytic converter, switching valve, bank 2 did not change state as commanded and appears stuck. This is the manufacturer-specific definition used by Lexus.
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
HC catalytic converter, switching valve, bank 2 - stuck open. The control module determined that the HC catalytic converter, switching valve, bank 2 did not change state as commanded and appears stuck. This is the manufacturer-specific definition used by Lexus.
P1083 is a manufacturer-specific code. In this database it is documented for: Lexus. The same number can mean something different on other brands.
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Understand the system behind this code: Oxygen Sensors (Lambda)
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