Transmission Fluid Temperature Sensor Circuit Low Input
Was bedeutet das?
Code P0712 indicates a problem with the transmission fluid temperature sensor.
Haftungsausschluss: Dieser Diagnosecode ist Teil des OBD2-Standards und gilt für Acura Mdx Modelle von 1996 bis 2026. Bitte beachten Sie jedoch, dass dies von der genauen Motorkonfiguration abhängt.
Häufige Ursachen
Niedriger, verschmutzter oder verbrannter Getriebeölstand
Beschädigter oder gebrochener Kabelbaum
Korrodierter oder loser Steckverbinder
Zu beachtende Symptome
- Motorkontrollleuchte leuchtet
- Warnung vor Getriebeüberhitzung
- Hartes oder ruckhaftes Schalten
Wie man diagnostiziert
Häufige Lösungen
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.