Dash Lights On '00 - 1999-2013 Silverado & Sierra 1500 - GM-Trucks.com (gm-trucks.com)
2000 gmc...dash lights wont work. instrument cluster and ac controls ' GM Truck Club Forum
2000 Chevy Truck No Dash Lights: I Have a 2000 Silverado. the Dash... (2carpros.com)
Dash lights not working - which fuse would be blown? : Electrical (silveradosierra.com)
GM Dash Lights Broken, Thanks Headlight Dimmer Switch (fixmyoldride.com)
SOURCE: dash light replacement
you have to take the radio apart to get to remove the face then you will need a solder gun to get the old bulbs out and put in the new ones
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Do the headlamps work ?
Non-Dimmable Lamps
Voltage to the coil of the courtesy lamp relay, dome, reading lamp, courtesy lamps, cargo Lamp, instrument panel (IP) compartment lamp and the underhood lamp is supplied from the Inadvertent power relay on CKT 1732. The inadvertent power relay receives voltage from the CTSY LP fuse which is hot at all times. Ground for the courtesy lamps goes through the courtesy lamp relay. Both relays are controlled by the body control module (BCM) base on inputs from door jamb switch, dome lamp switch or door handle switch. The BCM will supply a ground to the courtesy lamp relay when closing any one of the above switches to ground. Ground for the reading lamp, cargo lamp, IP compartment lamp and the underhood lamp is supplied by its own ground.
Voltage to the ash tray lamp and power window/door lock switches is supplied from the INT PRK fuse. Voltage to the INT PRK fuse is supplied from the park lamp relay, and is hot when park lamps or headlamps are on.
Dimmable Lamp
With the headlamp and panel dimmer switch in the park or head position, voltage is supplied to the instrument panel (IP) dimmer switch via CKT 44. The voltage output of the IP dimmer is veritable and goes through the ILLUM fuse via CKT 8 to the cluster, radio and various IP switches. For the radio and cluster displays and some switches, an additional circuit is required, CKT 1382, for the these components to dim. CKT 1382 is a 12 volt output of the BCM, and is hot when park or headlamps are on.
Some circuits are monitored by the BCM, and upon failure may set a DTC
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