Transmission parts diagrams are often available online, depending on the make and model of the vehicle. Transmission parts diagrams can range from simple drawings showing how the basic pieces fit together to complex drawings labeling all the pieces connected to the transmission. Transmission diagrams vary greatly based on the make and model of the vehicle and whether the transmission is manual or automatic.
Unthread the bolts or screws on the fix plate and remove it. Look in the vehicle owner's manual for the transmission parts diagram. Identify the PCS. Pull the two wires off the PCS and pull it off the fix plate. The PCS is fastened to the fix plate with tabs that you must depress before pulling it off, or with small screws you must first unthread.
Transmission parts diagrams facilitate identification of the parts in a transmission and allow owners and mechanics to see a close-up view of the transmission. These diagrams also serve to identify the name and location of each part in a transmission.