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Home >> Subaru >> 2019 >> WRX STI Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Continuously Variable Transmission (Diagnostics)) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC P0977: Shift Solenoid "B" Control Circuit High >> Diagnostic Method

Diagnostic Method

WARNING: This page is about a different variant/trim than selected.

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
Signal of malfunction from solenoid driver IC ON
As defined by:
Measured shift down pressure control solenoid voltage ≥ 2.5 V
 

Time needed for diagnosis:  0.2 seconds

Malfunction indicator light illumination:  Illuminates as soon as a malfunction occurs.