The control module registered the fault condition described as "Throttle Body Internal Fault". This is the manufacturer-specific definition used by Volvo.
TuningBot DTC Database · v4.37.15
P1028 Volvo - Throttle Body Internal Fault
Manufacturer-specific interpretation for Volvo. All interpretations of P1028
What P1028 means
Related and nearby codes
How to read P1028
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Frequently asked questions about P1028
What does P1028 mean?
Throttle Body Internal Fault. The control module registered the fault condition described as "Throttle Body Internal Fault". This is the manufacturer-specific definition used by Volvo.
Is P1028 generic or manufacturer-specific?
P1028 is a manufacturer-specific code. In this database it is documented for: Volvo. The same number can mean something different on other brands.
Can TuningBot remove P1028 at file level?
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.
Other file services
Understand the system behind this code: Diagnostic Strategy and DTC Logic
