January 01, 2013
Valve Body Xpress
See valve body identification guide to differentiate round pin and spade pin MLPS switches.
||'93-'98 with Internal Round Pin MLPS Switch|
|CHR196||'98-Later with Internal Spade Pin MLPS Switch|
|Round Pin MLPS Switch||Spade Pin MLPS Switch|
The transmission can be identified from the outside by an additional electrical connector sticking out of the case, next to the range sensor connector. It will either be 6 pins or 5 pins. Early connectors had 6 pins, with the #1 pin not being used. At some point, it was changed to a 5 pin configuration. Three wires go to the pressure sensor, and two wires go to the pressure solenoid. The TCM uses the pressure sensor as line pressure feedback to adjust line pressure to load conditions.
|Pressure Sensor Connector||Pressure Solenoid Connector|
|Pressure Sensor - Variable Force Solenoid Case Connector|
Pin #1 is missing; it was eliminated because it is not used.