Pressure sensor Lock-up
The lock-up pressure sensor is positioned in the valve housing, which is mounted behind the side cover for the transmission. The lock-up pressure sensor consists of six electrical pressure switches. The pressure switches indicate the hydraulic pressure in the different transmission systems. The pressure sensor provides the transmission control module (TCM) with information about the system pressure and selected gear. The transmission control module (TCM) uses this information to control the lock-up solenoid, SL.
There are diagnostics for the lock-up pressure sensor.