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Home >> Subaru >> 2020 >> Ascent Base >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Transaxle (Diagnostics) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0846: Transmission Fluid Pressure Sensor/Switch "B" Circuit Range/Performance >> Classification Of Symptom Using Freeze Frame Data
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Classification Of Symptom Using Freeze Frame Data

Apply the values of [Actual Secondary Pressure] and [Secondary Actual Current] recorded in the freeze frame data onto the graph shown in the following figure, and judge if either low-voltage malfunction or high-voltage malfunction occurs.

G13202704Courtesy of SUBARU OF AMERICA, INC.
NOTE: Symptom that the DTC P0846 illuminates can be classified into 2 patterns.
  • Low-voltage malfunction: detected due to insufficient oil pressure
  • High-voltage malfunction: detected due to excessive oil pressure