I have a 1982 Pontiac Firebird SE. Last weekend the light over my heat and A/C controller went out. Does anyone know how I can get to the bulb? Your help is appreciated. Also, is there a fuse that operates my rear Defogger? Mine doesn't work, but the light indicator works.

Thanks in advance for your help.

Jeff Morgan

 

The tiny bulb (can't recall the number) above the A/C controls is available from GM, and Pep Boys.

Check the wire connections @ the hatch lifts for the defroster & measure for 12 volts relative to ground @ the driver side wire with the engine on & the defroster switch on. If there is no power there, then the problem is upstream from there.

The 35 ampere power accy circuit breaker supplies power to the defroster & the 10 ampere gauges fuse supplies power to the electronics in the switch.

 

Thanks Tim. I'll check it out this weekend. Oh, by the way. How do I get to that tiny bulb?

Thanks!

Jeff Morgan