Circuit Description

The 1-2 shift solenoid is a normally-open exhaust valve that is used in conjunction with 2-3 shift solenoid, to allow 4 different shifting combinations. Solenoid is attached to control valve body. Malfunctions will occur when shift solenoid or shift valve is stuck on or off. DTC P0751 will set when PCM detects that commanded gear does not match actual gear ratio for particular gear.