The dash cluster lights are not working, I have checked the blue with red strip on the light switch. When I use my 12v light tester, I here it click like it’s tripping a relay and get a very dim light on the tester. Any thoughts? I have hot wired it and the lights will light up but the lum light for the headlight switch turns off.
Electrical 1989 mustang dash lights
- Thread starter Mustang_65-87
- Start date
Is it only your dash lights? What about the AC controls, do they illuminate? If not could be the dimmer or the actual head light switch and/or wiring at the headlight switch.
Check the output of the existing g one with a DVM. You can roll the switch and should see the voltage increase and decrease.
Man, grab a can of electrical spray cleaner, take out the dimmer switch, its just a wheel with a springy thing that get's green for some reason, I'm sure it's some magical electrolysis 
happening but I've had great success with a tooth brush and electrical spray, wear eye protection if your clumsy like me.
Unless the spring is broken it's likely just green goo'd up.
happening but I've had great success with a tooth brush and electrical spray, wear eye protection if your clumsy like me. Unless the spring is broken it's likely just green goo'd up.
I will give that a tryMan, grab a can of electrical spray cleaner, take out the dimmer switch, its just a wheel with a springy thing that get's green for some reason, I'm sure it's some magical electrolysis
Unless the spring is broken it's likely just green goo'd up.
That’s specific to the radio
Check fuse 13. Make sure it’s good, and you have 12v there.
If that’s good, it’s a bulb/ground issue. If you don’t have 12v there, but do have 12v at fuse 12, it’s a headlight switch or dimmer issue.
Check fuse 13. Make sure it’s good, and you have 12v there.
If that’s good, it’s a bulb/ground issue. If you don’t have 12v there, but do have 12v at fuse 12, it’s a headlight switch or dimmer issue.
Similar threads
