Why would your dashboard lights and tailights and parking lights not work but your headlights and brake lights all work fine Fuses are all good and dimmer switch is ok as well?

Answer 1

Your non-working instrument panel lights, tailights, and parking lights have ONE thing in common, they are controlled by the same switch which controls the headlights. The working brake lights do not even figure in the analysis as they are on a totally different circuit from ALL of those other lights. The headlights, tailights, and parking lights ARE on the same circuit, AND are controlled by different sets of contact points inside of the "headlight" switch. Although there may be more, I can only think of three causes for the symptoms you describe. 1. A loose, or disconnected wire or harness involving the circuit for those lights. 2. Corroded contact points within a connector in that circuit. 3. A defect [probably overheated, "cooked"] in the contact points for those lights INSIDE the headlight switch. I suspect that 3 is the cause, but due to cost of a headlight switch, and the difficulty in changing it, it would be a good idea to check out 1 and 2 first, as those problems do not generally require the replacement of any parts, only disassembly, cleaning, and reassembly. I suggest you eleminate numbers 1 and 2 first, then if that does not correct the problem, consider replacing the headlight switch.