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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 P0746: Pressure Control Solenoid "A" 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
Phase 1 
ABS(1) (Target line pressure - Measured line pressure)
Measured line pressure
 
More than 500 kPa
3000 kPa or more
Phase 2 
Measured line pressure sensor input voltage
(Line pressure)
Measured line pressure sensor input voltage
(Line pressure)
NOTE:

Both Phase 1 and Phase 2 must be met to fail the diagnostics. 

 
0.8 V or less
(570 kPa or less)
0.195 V or more
(0 kPa or more)
(1) Absolute value

Time needed for diagnosis: 

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