Transmission Fluid Temperature Sensor Circuit Low Input
Qu'est-ce que cela signifie ?
Code P0712 indicates a problem with the transmission fluid temperature sensor.
Avertissement : Ce code de diagnostic fait partie du système OBD2 standard et peut s'appliquer aux modèles Genesis G70 fabriqués de 1996 à 2026. Cependant, veuillez noter que la présence de ce code dépend de la configuration exacte du moteur, des options et de l'année de production.
Causes courantes
Liquide de transmission bas, sale ou brûlé
Faisceau de câblage endommagé ou cassé
Connecteur électrique corrodé ou desserré
Symptômes à surveiller
- Le voyant moteur est allumé
- Avertissement de surchauffe de transmission
- Changement de vitesse brutal
Comment Diagnostiquer
Solutions Courantes
Replace the Transmission Fluid Temperature (TFT) Sensor: This is the most frequent solution if the sensor itself is faulty, exhibiting incorrect resistance readings or causing the 'low input' signal. The sensor may be a standalone component, or it might be integrated into the transmission's internal wiring harness (lead frame) or even the valve body assembly, requiring a more involved replacement procedure.
Repair or Replace Damaged Wiring Harness: If the diagnostic steps reveal a short to ground, an open circuit, or excessive resistance in the wiring leading to the TFT sensor, the damaged section of the harness must be meticulously repaired or replaced. Ensure all connections are clean, tight, and free of corrosion to prevent future issues.
Replace the Transmission Lead Frame or Valve Body: On many modern transmissions, the TFT sensor is an integral part of the internal wiring harness (often called a lead frame) or the entire valve body assembly. If the sensor is not separately replaceable, the entire lead frame or valve body may need to be replaced to resolve the P0712 code. This is a more complex and costly repair due to the component integration.