TuningBot DTC Database · v4.37.15
17 manufacturer-specific interpretations across 16 manufacturers in the TuningBot DTC database.
ChevroletThe control module detected that the Throttle position (TP) voltage stayed above the expected range. This is the manufacturer-specific definition used by Chevrolet.
ChryslerThe control module detected an unstable or intermittent signal in the TP Sensor circuit. This is the manufacturer-specific definition used by Chrysler.
DodgeThe control module detected a fault associated with the Decreased Engine Performance Due To High Intake Air Temp circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Dodge.
FordThe control module detected a fault associated with the Throttle Position Sensor Inconsistent with Mass Air Flow Sensor circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Ford.
HondaThe control module detected that the Throttle position (TP) sensor - position value was lower than expected for the current conditions. This is the manufacturer-specific definition used by Honda.
TP sensor
HyundaiThe control module detected improper operation of the APS PWM Output circuit. This is the manufacturer-specific definition used by Hyundai.
JaguarThe control module judged the Pedal Position Sensor A signal implausible: it stayed inside electrical limits but did not match the value expected for the current operating conditions. This is the manufacturer-specific definition used by Jaguar.
KiaThe control module detected a fault associated with the AT - TP sensor signal circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Kia.
Land RoverThe control module judged the Throttle position (TP) behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Land Rover.
LexusThe control module judged the Accelerator pedal position (APP) behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Lexus.
MINIThe control module judged the Pedal Position 1 behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by MINI.
NissanThe control module detected improper operation of the Throttle valve position motor. This is the manufacturer-specific definition used by Nissan.
Throttle valve position motor
PorscheThe control module detected a fault associated with the Oxygen Sensor Heating circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Porsche.
SuzukiThe 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.
ToyotaThe control module judged the Accelerator pedal position (APP) behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Toyota.
VAGThe control module detected a short circuit to ground in the Heated oxygen sensor (HO2S) 2, Bank 2 - heater circuit. This is the manufacturer-specific definition used by Audi.
The control module detected a short circuit to ground in the Heated oxygen sensor (HO2S) heater circuit. This is the manufacturer-specific definition used by Volkswagen.
Powertrain: engine, transmission and driveline systems.
Manufacturer-defined range: the meaning can differ between brands.
Specific fault index within the subsystem.
Diagnostic Trouble Code (17 interpretations). The control module detected that the Throttle position (TP) voltage stayed above the expected range. This is the manufacturer-specific definition used by Chevrolet.
P1121 is a manufacturer-specific code. In this database it is documented for: Chevrolet, Chrysler, Dodge, Ford, Honda, Hyundai, Jaguar, Kia, Land Rover, Lexus, MINI, Nissan, Porsche, Suzuki, Toyota, VAG. 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: MAF Sensor
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