Grand Cherokee 2WD V8-4.7L VIN J (2004)
Headlamp Switch: Description and Operation
Headlamp Leveling Switch
Vehicles equipped with the remote headlamp leveling system use a headlamp leveling switch. This switch is located under the instrument cluster on the
I.P. The headlamp leveling switch is the primary controller of the headlamp leveling system. The leveling switch has four settings 0-3, 0 being the
lowest, 3 being the highest headlight beam vertical setting.
With the movement of the headlamp leveling switch control knob, voltage is adjusted at the headlamp leveling switch (rheostat). This signals the
headlamp leveling motors (headlamp module mounted) to adjust the vertical headlamp beam pattern accordingly. Headlamps must be "on" in order for
the leveling system to function.