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Seen a few threads on the wiper over ride control and light. My 68 is a very early build. It has the control next to the by pass valves but appears disconnected.
My question is where would I find the light....if one even existed on my car?
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I have a Jan 68 build with no wiper override light. According to Richard Prince in his C3 restoration guide the wiper override light was added in mid March of 68.
To my knowledge, this is the only correct schematic for the 1968 cars. For the system to work the bracket for the over-ride switch must be grounded. There is a ton of 1968 wiper info on my tech site at this link
Having such a light would be useful...until you understand how that system works. Then it is operationally useless. It only serves to let a 'new' owner know that the wiper override was left ON when he first got in the car. Apparently, GM added this feature in late 1968. I had an earlier 1968 car which did NOT have this feature. And I believe that GM ditched it in '69 [and thereafter] for cost savings and the very limited benefit to the owner.
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I wouldnt mind installing one since I bump my switch every so often and it rotates to the on position. I've been toying with the idea of installing s toggle instead of the rotary switch
Having such a light would be useful...until you understand how that system works. Then it is operationally useless. It only serves to let a 'new' owner know that the wiper override was left ON when he first got in the car. Apparently, GM added this feature in late 1968. I had an earlier 1968 car which did NOT have this feature. And I believe that GM ditched it in '69 [and thereafter] for cost savings and the very limited benefit to the owner.
What was funny was how the system worked. . . This lamp used back feed voltage to power up the wire and the ground came from the bulb housing.
Leave it to GM to find the easiest and cheapest way to solve a problem. Note that I didn't say GM always offered the 'best' solutions.In the day, GM's Engineering Departments were the best in the business. They may still be, in the Assembly Plants. But last-minute changes had no time to be 'proved'. That light was likely one of those cases.
Wiper over ride light
