Amazon.com: for Dodge Ram 1500/2500/3500 Headlight Switch 1994 95 96 97 1998 | Blade Type | w/ 9 Male Connectors & 9 Male Terminal : Automotive
1998 Dodge Ram Fuse Box Diagram, When the headlamp switch is placed in the PARK position, the BCM will then energize the park lamp relay coil control circuit.
Swapping Pull Knob for Turn Knob Headlamp Switch - DodgeForum.com