Originally posted by dalesmitsu

This is the second time someone brought this up.

Read his post again...he was talking about someone else, not you.




Back to the dimmer circuit problem.

Assuming the wiring has not been altered by previous owners it appears you might have damaged or disconnected the dimmer control. Some people call this a reostat but it actually is a pulse width modulator and it provides an adjustable variable ground connection to all of the lights in the dimmer circuit.

I confirmed that the ash tray light is NOT on the dimmed side of the circuit but it does gets power from the same fuse. If the ash tray light works there is no need to check further for any fuses. The only one there is lies under the hood and must be working.

The easiest way I know of to confirm that the dimmer module may be at fault or disconnected is to try this test. Find the black/yellow wire on the back of the cigarette lighter bulb (not the lighter wires itself, the bulb wires).

With the marker light switch turned on, skin a tiny bit of insulation off of the black/yellow wire and temporarily ground the black/yellow wire using a test lead connected to any good ground nearby. This should force all of the gauge lights turn on (they should come on at full brightness).

In effect this test is the same as turning the dimmer knob all the way up to max brightness. Let me know if that turns on the bulbs. If so, you have lost the connection to the dimmer control somehow.

If this doesn't light the gauge lights then there might be a physical disconnection somewhere near that you are unaware of.