: If the vehicle does drive, it may operate only on the gasoline engine with severely reduced power. Diagnostic & Fix Steps P0ADF - OBD2 Trouble Code - Carly

If you own a modern Toyota hybrid—such as the Prius (Gen 4+), RAV4 Hybrid, Camry Hybrid, Corolla Hybrid, or Sienna Hybrid—and your check engine light has illuminated alongside a message like “Hybrid System Malfunction,” you may have encountered the Diagnostic Trouble Code (DTC) .

Unlikely. Wheel speed affects ABS/brake control, not HV current sensing directly. However, a faulty brake booster (P0A7D) can appear alongside P0ADF due to shared CAN bus noise.

The harness between the current sensor and the HV ECU (located under the rear seat or behind the backrest) can chafe against metal brackets, short to ground, or break internally.

code in Toyota hybrid vehicles is a generic powertrain diagnostic trouble code (DTC) that indicates a "Hybrid Battery Negative Contactor Control Circuit Low"

Use the scanner to command the current sensor test. The HV ECU will compare sensor current to inverter current. A mismatch >5A typically confirms a faulty sensor.

Record the battery voltage, current reading, and temperature at the moment P0ADF set. If current shows “-32768” or “0” while the car is running, the sensor signal is lost.