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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 P2757: Torque Converter Clutch Pressure Control Solenoid Control Circuit Performance/Stuck Off >> 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
ABS (1): Engine speed - Measured primary pulley shaft speed x 1.129 (2) > Table 2 rpm
(1) ABS: Absolute value

(2) 1.129: Primary reduction gear ratio
ENGINE SPEED SPECIFICATION

Engine speed (rpm) 0 500 1000 1500 2000 2500 3000 3500
ABS (1): Engine speed - Measured primary pulley shaft speed x 1.129 (rpm) 200 200 200 200 200 200 200 200
(1) ABS: Absolute value
Engine speed (rpm) 4000 4500 5000 5500 6000 6500 7000
ABS (1): Engine speed - Measured primary pulley shaft speed x 1.129 (rpm) 200 200 200 200 200 200 200
(1) ABS: Absolute value

Time needed for diagnosis:  10 seconds

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