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Home >> Subaru >> 2015 >> WRX Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 249 (Continuously Variable Transmission (Diagnostics)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0756: Shift Solenoid "B" Performance/Stuck Off >> General Description >> Diagnostic Method

Diagnostic Method

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria Threshold Value
Actual pulley ratio change for 1 second More than -0.08
  and
  Less than 0.08
Commanded duty of shift down pressure control solenoid More than 80%

Time needed for diagnosis: Table 1  s

TRANSMISSION FLUID TEMPERATURE AND TIME SPECIFICATION

Transmission fluid temperature (°C) -10 20 40 80 120
Time Required (sec) 1 0.3 0.25 0.25 0.25

Malfunction indicator light illumination:  Illuminates when malfunction occurs in 2 continuous driving cycles.