The control module detected a fault associated with the Throttle Position Sensor Intermittent High Voltage circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Suzuki.
TuningBot DTC Database · v4.37.15
P1121 Suzuki - Throttle Position Sensor Intermittent High Voltage
Manufacturer-specific interpretation for Suzuki. All interpretations of P1121
What P1121 means
Related and nearby codes
How to read P1121
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 P1121
What does P1121 mean?
Throttle Position Sensor Intermittent High Voltage. The control module detected a fault associated with the Throttle Position Sensor Intermittent High Voltage circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Suzuki.
Is P1121 generic or manufacturer-specific?
P1121 is a manufacturer-specific code. In this database it is documented for: Suzuki. The same number can mean something different on other brands.
Can TuningBot remove P1121 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
