Power Lock Switch: Operation
WARNING: This page is about a different car, the 2004 Dodge Dakota and 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
The two-way, momentary, power lock switch on the passenger side front door is connected in series between ground and the passenger door switch mux input of the Central Timer Module (CTM). The power lock switch on the driver side front door trim panel is integral to the driver door module. (Refer to DRIVER DOOR MODULE ). Each power lock switch position Lock, Unlock, and Neutral provides a different resistance value to the CTM input which allows the CTM to sense the switch position. Based upon the power lock switch inputs, the CTM controls the battery and ground feed outputs to the power lock motors to lock or unlock the door and liftgate latches. The power lock switch can be diagnosed using conventional diagnostic tools and methods.