i have a 87' 5.0 and when i turn in my running lights all the way the instrument panel cluster does not light up, also the heater controls doesnt lite up either, i went to test for power the main fues box and there no power to either wire and i have the right fues too. i herd there is like a relay for the instrument panel that could cause this?, does anyone know?
Dunno of a relay, but I've seen bad dimmer switches cause that, as well as improper stereo installations.
Do the other accessories on that fuse circuit work?
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1992 Deep Emerald Green Mustang GT Hatch, 5 speed, 2.73s, Mac fenderwell cold air intake, '93 Cobra MAF, Mac 70mm throttle body & spacer, Explorer intakes, Mac unequal headers & offroad pipe, Magnaflow catback, Walbro 110lph fuel pump, Jet adjustable FPR, MSD Blaster coil, Accel 8mm wires, FRPP aluminum quadrant, UPR firewall adjuster, stock cable, Granatelli upper control arms.
Waiting to go on: Granatelli lower control arms, and GT40 Iron heads!
i dont have any other things hooked up to that circut, but my hazzard signals dont work, the switch goes down but the hazzard lights dont turn on, also of i have the hazzard switch on, the turn signals dont work but when i turn off the hazzard the signals work?
check under your hood maybe you blew a fuseable link just a thought, it will be a couple of them around where the coil is located on the left fender under the hood
A continuity tester will work. There are like at least 7 fusible links on these cars. Look all over your engine bay.
Might just be the flasher, causing the hazards to not work. It's under the dash somewhere.
It's normal for the turn-signals not to work, when the hazard switch is on, or like Ghost said, not turned all the way off - that's gotten alot of people...
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1992 Deep Emerald Green Mustang GT Hatch, 5 speed, 2.73s, Mac fenderwell cold air intake, '93 Cobra MAF, Mac 70mm throttle body & spacer, Explorer intakes, Mac unequal headers & offroad pipe, Magnaflow catback, Walbro 110lph fuel pump, Jet adjustable FPR, MSD Blaster coil, Accel 8mm wires, FRPP aluminum quadrant, UPR firewall adjuster, stock cable, Granatelli upper control arms.
Waiting to go on: Granatelli lower control arms, and GT40 Iron heads!
Check your connections on the back of your switches(if you have been in the dash recently, or you just got the car) I didn't hook mine up right the last time I changed speedo cables. When I tested the lights, the dimmer on the cluster didn't work (so I had to tear the dash apart again).
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1988 Supercharged 'Vert - SOLD!!!
1970 F100 - 10 bolt posi Rear end, Fuel Injected 302, Traction Bars, EQ shorties, Bed Cover, Custom Interior with power leather seats- custom dash/console, AOD w/ B&M shifter, Tubbed w/ 15x10s rear and 15x7s up front, no emissions junk and it's LEGAL!!!
"Only two defining forces have ever offerred to die for you: Je$us Christ and the American G.I." - Author Unknown
ok i cheecked all the plastic conectors and there all intact and are pluged in right, do you think i might have to replace the whole intrument cluster?
instrument panel lights not working 
