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P1121 Code défaut de diagnostic (17 interprétations)

17 interprétations spécifiques au constructeur chez 16 constructeurs dans la base DTC TuningBot.

Chevrolet

1 interprétation
P1121
Throttle position (TP) sensor - voltage high, intermittent Chevrolet · engine Fiabilité de la donnée 80%

The control module detected that the Throttle position (TP) voltage stayed above the expected range. This is the manufacturer-specific definition used by Chevrolet.

Causes possibles

  • Wiring open circuit/short to positive
  • poor connections

Chrysler

1 interprétation
P1121
TP Sensor Circuit Intermittent High Voltage Chrysler · engine Fiabilité de la donnée 62%

The control module detected an unstable or intermittent signal in the TP Sensor circuit. This is the manufacturer-specific definition used by Chrysler.

Vérifications recommandées

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Confirm the exact vehicle, ECU and software context
  • Inspect relevant wiring and connectors
  • Check applicable OEM service information

Dodge

1 interprétation
P1121
Decreased Engine Performance Due To High Intake Air Temp Dodge · engine Fiabilité de la donnée 62%

The 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.

Ford

1 interprétation
P1121
Throttle Position Sensor Inconsistent with Mass Air Flow Sensor Ford · engine Fiabilité de la donnée 80%

The 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.

Causes possibles

  • Wiring
  • MAF sensor
  • TP sensor
  • air leak

Vérifications recommandées

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Compare commanded and measured values
  • Check applicable OEM service information

Honda

1 interprétation
P1121
Throttle position (TP) sensor - position lower than expected Honda · engine Fiabilité de la donnée 80%

The 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.

Causes possibles

TP sensor

Hyundai

1 interprétation
P1121
APS PWM Output Circuit Malfunction Hyundai · engine Fiabilité de la donnée 62%

The control module detected improper operation of the APS PWM Output circuit. This is the manufacturer-specific definition used by Hyundai.

Jaguar

1 interprétation
P1121
Pedal Position Sensor A Circuit Range Performance Jaguar · engine Fiabilité de la donnée 62%

The 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.

Kia

1 interprétation
P1121
AT - TP sensor signal Kia · engine Fiabilité de la donnée 62%

The 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.

Causes possibles

  • Wiring
  • TP sensor
  • TCM

Land Rover

1 interprétation
P1121
Throttle position (TP) sensor - range/ performance problem Land Rover · engine Fiabilité de la donnée 62%

The control module judged the Throttle position (TP) behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Land Rover.

Causes possibles

  • Wiring
  • supply voltage
  • TP sensor
  • ECM

Lexus

1 interprétation
P1121
Accelerator pedal position (APP) sensor - range/performance problem Lexus · engine Fiabilité de la donnée 80%

The control module judged the Accelerator pedal position (APP) behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Lexus.

Causes possibles

  • APP sensor
  • ECM

Vérifications recommandées

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Compare commanded and measured values
  • Check applicable OEM service information

MINI

1 interprétation
P1121
Pedal Position 1 Range/Performance Problem MINI · engine Fiabilité de la donnée 62%

The control module judged the Pedal Position 1 behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by MINI.

Nissan

1 interprétation
P1121
Throttle valve position motor - malfunction Nissan · engine Fiabilité de la donnée 62%

The control module detected improper operation of the Throttle valve position motor. This is the manufacturer-specific definition used by Nissan.

Causes possibles

Throttle valve position motor

Porsche

1 interprétation
P1121
Oxygen Sensor Heating Porsche · emissions Fiabilité de la donnée 62%

The 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.

Suzuki

1 interprétation
P1121
Throttle Position Sensor Intermittent High Voltage Suzuki · engine Fiabilité de la donnée 62%

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.

Toyota

1 interprétation
P1121
Accelerator pedal position (APP) sensor - range/performance problem Toyota · engine Fiabilité de la donnée 80%

The control module judged the Accelerator pedal position (APP) behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by Toyota.

Causes possibles

  • APP sensor
  • ECM

Vérifications recommandées

  • Perform a full module scan
  • Review freeze-frame and occurrence data
  • Compare commanded and measured values
  • Check applicable OEM service information

VAG

2 interprétations
P1121
Heated oxygen sensor (HO2S) 2, Bank 2 - heater short to ground VAG · emissions Fiabilité de la donnée 62%

The 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.

Causes possibles

  • Wiring short to ground
  • HO2S
S'applique à Audi
P1121
Heated oxygen sensor (HO2S) heater short to ground VAG · emissions Fiabilité de la donnée 80%

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.

Causes possibles

  • Wiring short to ground
  • HO2S
S'applique à Volkswagen

Codes liés et voisins

Comment lire P1121

P

Groupe motopropulseur : moteur, boîte et transmission.

1

Plage définie par le constructeur : la signification peut varier selon les marques.

121

Index de défaut spécifique dans le sous-système.

Questions fréquentes sur P1121

Que signifie P1121 ?

Code défaut de diagnostic (17 interprétations). 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 est-il générique ou spécifique au constructeur ?

P1121 est un code spécifique au constructeur. Dans cette base il est documenté pour : Chevrolet, Chrysler, Dodge, Ford, Honda, Hyundai, Jaguar, Kia, Land Rover, Lexus, MINI, Nissan, Porsche, Suzuki, Toyota, VAG. Le même numéro peut signifier autre chose sur d'autres marques.

TuningBot peut-il supprimer P1121 au niveau du fichier ?

Si la logique du défaut réside dans la calibration de l'ECU, oui : notre service DTC Removal désactive l'entrée de défaut concernée. La correction du checksum n'est pas incluse : c'est un service à part, en option. Vous ne savez pas si votre cas est concerné ? Demandez une évaluation gratuite et nos ingénieurs examineront votre fichier.

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