P1790

P1790 - ST Solenoid Valve Circuit Malfunction

CIRCUIT DESCRIPTION

DTC Detecting Condition:

Shift solenoid valve ST is switched ON-OFF by a signal from ECM so that let in or out timing of 2nd brake is adjusted by operating orifice control valve. Therefore, shift solenoid valve ST operates when letting in or out reverse clutch.

If it is broken, the shift shock becomes big.

Wiring Diagram:

Step 1 - 3:

Step 4 - 5:

INSPECTION PROCEDURE