Grand Caravan FWD V6-229 3.8L VIN L MFI (1997)
Headlamp Switch: Description and Operation
CIRCUIT OPERATION
Battery voltage for the illumination lamps in the switch is supplied on circuit E2. This circuit is an output from the Body Control Module (BCM).
The voltage level on this circuit is controlled by the input of the headlamp dimmer switch on circuit E92.