The control module detected improper operation of the Air flow meter or circuit. This is the manufacturer-specific definition used by Alfa Romeo.
Base de données DTC TuningBot · v4.37.15
P1221 Code défaut de diagnostic (13 interprétations)
13 interprétations spécifiques au constructeur chez 12 constructeurs dans la base DTC TuningBot.
Alfa Romeo
1 interprétation
Chevrolet
1 interprétationThe control module detected a fault associated with the Throttle motor position sensor 1/2 - signalvariation circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chevrolet.
Causes possibles
- Wiring
- throttle control module
Chrysler
1 interprétationThe control module detected a fault associated with the Throttle Position (TP) Sensor 1 - 2 Correlation circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chrysler.
Vérifications recommandées
- Perform a full module scan
- Review freeze-frame and occurrence data
- Compare commanded and measured values
- Check applicable OEM service information
Dodge
1 interprétationThe control module detected improper operation of the CAN data bus, rcs. This is the manufacturer-specific definition used by Dodge.
Causes possibles
- Wiring
- rcs control module trouble code(s) stored
Ford
1 interprétationThe control module detected improper operation of the Traction Control System. This is the manufacturer-specific definition used by Ford.
Honda
1 interprétationThe control module detected a fault associated with the Throttle motor position sensor 1/2 - signal variation circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Honda.
Causes possibles
- Wiring
- throttle control unit
- ECM
Hyundai
1 interprétationThe control module detected a fault associated with the Feedback (Main Duty) Solenoid circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Hyundai.
Jaguar
1 interprétationThe control module judged the Pedal Demand Sensor B 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.
Mazda
1 interprétationThe control module detected a fault associated with the Traction Control System circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Mazda.
Mercedes-Benz
1 interprétationThe control module detected a fault associated with the CAN Communication ETC Or ETS Interrupted circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Mercedes-Benz.
MINI
1 interprétationThe control module judged the Pedal Position Sensor 2 behaviour implausible for the current operating conditions. This is the manufacturer-specific definition used by MINI.
VAG
2 interprétationsThe control module detected a short circuit to ground in the Cylinder Shut Off Exhaust Valves circuit. This is the manufacturer-specific definition used by Audi.
Causes possibles
- Wiring short to ground
- valve controller
Vérifications recommandées
- Perform a full module scan
- Review freeze-frame and occurrence data
- Inspect relevant wiring and connectors
- Check power supplies and grounds
- Compare commanded and measured values
- Check applicable OEM service information
The control module detected a short circuit to ground in the Cylinder Shut Off Exhaust Valves circuit. This is the manufacturer-specific definition used by Volkswagen.
Codes liés et voisins
Comment lire P1221
Groupe motopropulseur : moteur, boîte et transmission.
Plage définie par le constructeur : la signification peut varier selon les marques.
Index de défaut spécifique dans le sous-système.
Questions fréquentes sur P1221
Que signifie P1221 ?
Code défaut de diagnostic (13 interprétations). The control module detected improper operation of the Air flow meter or circuit. This is the manufacturer-specific definition used by Alfa Romeo.
P1221 est-il générique ou spécifique au constructeur ?
P1221 est un code spécifique au constructeur. Dans cette base il est documenté pour : Alfa Romeo, Chevrolet, Chrysler, Dodge, Ford, Honda, Hyundai, Jaguar, Mazda, Mercedes-Benz, MINI, VAG. Le même numéro peut signifier autre chose sur d'autres marques.
TuningBot peut-il supprimer P1221 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.
Autres services fichier
Comprendre le système derrière ce code : Stratégie de diagnostic et logique DTC
