Interior Lights Dimming Circuit Description. GMC Truck Sonoma Pickup

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 1998 🢒 Sonoma Pickup - 2WD 🢒 Body and Accessories 🢒 Lighting Systems 🢒 Interior Lights Dimming Circuit Description

Voltage is supplied to the IP dimmer control when the headlamp switch is in the PARK or HEAD position. The voltage goes through the ILLUM fuse to the following components:

•	The IP lamps

•	The AM/FM stereo radio

•	The HVAC controller

•	Various switch lamps

Voltage is supplied to the IP dimmer control when the headlamp switch is in the OFF/AUTO position. The voltage is supplied from the park lamps circuit.