LEMON Manuals: Even more car manuals for everyone
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 P1758: Cold Start Torque Converter Clutch Pressure Control Solenoid Control Circuit Stuck On >> 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
Malfunction counter/Diagnostic execution counter
When the difference between Engine speed and Turbine shaft speed count up Malfunction counter
70% or more
Less than 50 rpm

Time needed for diagnosis:  Cumulative time of 3 s during the lock-up prohibition at cold

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