Electrical 1989 mustang dash lights

General karthief said:

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.

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Mustang5L5 said:

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.

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