Transmission Solenoid Valves

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

The 9 speed transmission could contain a maximum of twelve individual solenoids - RPO dependent - installed in various bore locations on the lower control valve body assembly and transmission case. Eight of the twelve solenoid valves are used to control pressure regulation and direction of transmission fluid. The four ON/OFF solenoid valves are only used to direct transmission fluid.

The normal operating current range for these solenoid valves is between 0 - 1.2 amps. If the TCM detects an electrical circuit malfunction or excessive current flow, the TCM will turn OFF the high side driver to that solenoid and set a DTC. The high side driver will reset when the circuit fault is corrected and the ignition switch is cycled.

There are three slightly different designed variations of the pressure regulating solenoid valves used on this transmission. They are; linear variable force solenoid, normally low variable force solenoid and normally high variable force solenoid.