1968 (April build) wiper override switch/light

[Charles F.]

Trying to understand the operation of the wiper override switch (round knob under the steering column) and the wiper override light in the bezel above the radio. The motor is not running at the moment and can't test the operations. Need to button up the dash soon and don't want to get the wiring wrong.

There is a single black wire coming to the bulb in the bezel light and the bulb seems to be grounded to the bezel itself. There is nothing in the AIM that we can find about the wiring for an April 68 build.

What are the circumstances for the dash light to illuminate ? Does it illuminate with the key in the "on" position and go off when the motor is started ? Does it go off automatically somehow or must the switch under the steering column be used to turn it off ?

Any help will be appreciated.

Thanks.

Chuck Faillace

[Alan S.]

Re: 1968 (April build) wiper override switch/light

Hi Charles,
Have you considered Dr. Rebuild? His wiring diagrams are well done and might give you the info you're looking for.
Regards,
Alan

PS: Does the owner's manual give you any info about how the switch and light are supposed to work? In my 71 manual there's info on what the over-rides and switch are supposed to do.

[Robert C.]

Re: 1968 (April build) wiper override switch/light

The knob below the stearing col. is to stop the wipers on the windshield. Just plug in the light and it should work at the right time. All black wires under the dash are positive charged with neg ground on the dash where the light inserts.