Solenoid Characterization

WARNING: This page is about a different car, the 2016 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

Transmission Control Solenoid Valves 1-7 are pressure regulating valves. Each solenoid valve is tested after assembly to determine the output fluid pressure at certain electrical current values, applied to coil windings. This information is refer to as solenoid current/pressure data points. The solenoid valves are tested two ways, with an increasing and decreasing electrical current applied to the coil windings. The resultant current versus pressure data points are saved and assigned a file number. The file number is marked on the solenoid valve housing end. The performance data file is stored on the TIS web site. This data file is programmed and stored in the vehicle's TCM. Replacing any of the following components will require the TCM to be programmed with the new or existing solenoid valve performance data.

TCM - program the new TCM with the existing solenoid data files stored on the TIS web site for all 7 pressure regulating solenoid valves
One or more solenoid valves - program the TCM with the new data file for only the individual pressure regulating solenoid valves that were replaced
Lower Control Valve Body Assembly with Solenoid Valves - program the TCM with the new data files stored on the TIS web site for all pressure regulating solenoid valves
Transmission Assembly - program the TCM with the new data files stored on the TIS web site for all pressure regulating solenoid valves