Wiper Issues

[eherbaugh]

I have a 85 C10 two speed wiper system. I bought a new wiper motor and replaced it. I also replaced the wiper switch in the column. This does not have the delay system. So when I turn on the wiper switch it turns on the dash lights and not the wipers. I performed the wiper test using a jumper at the connector at the base of the steering column and when using the jumper to ground I can get hi and low speed to work.

Did I short out the new switch possibly? Any help would be great. I’m to the point that I may just run a toggle switch to ground to at least get the wipers working.

 

[eherbaugh]

Bump!! Anyone?

 

[Sad Sack]

Try putting the term "Wipers" in the search box to see if any previous threads may help. I'm lost with your issue, sorry.

 

[Goldie Driver]

No idea, but a question- does the dash light switch work for the lights ?

I am at a loss as to what wiring in the column could cause the dash lights to come on as the only other wiring in the column is for the turn signal switch and cruise if equipped.

 

[fast 99]

Check and clean all grounds. Suspect feedback from a poor ground. There are several behind the dash and of course body, and engine.

 

[eherbaugh]

Try putting the term "Wipers" in the search box to see if any previous threads may help. I'm lost with your issue, sorry.

I have been searching and reading for weeks with no real answers

 

[eherbaugh]

No idea, but a question- does the dash light switch work for the lights ?

I am at a loss as to what wiring in the column could cause the dash lights to come on as the only other wiring in the column is for the turn signal switch and cruise if equipped.

Yes dash light switch still works as it should.

 

[eherbaugh]

Check and clean all grounds. Suspect feedback from a poor ground. There are several behind the dash and of course body, and engine.

Man these grounds are killing me. I will do some more ground checks this weekend. Oh yeah the wiper washer works as it should. It’s really confusing.

 

[BadBowtie]

Headlamp hi/low switch is in the column on 1984+ models too.

 

[YakkoWarner]

I'll thow this in as a clarification because I just had to deal with it recently: The hi-low switch control is part of the turn signal lever, but the actual switch is under the dash at the base of the column. There is a metal rod that goes down the column from the lever to actuate the switch. Mine was stuck in hi beam position, and I was able to reach up under there and push the switch with my finger to get it to switch to low. The control rod seems to have come loose but I don't have the nerve to tear a column apart. But the electrical wiring for the hi-low never enters the column.

 

[Broken85]

Officially, Lights don’t cross on that system, nevertheless, here we are. I think The purple wire (but someone will correct me if not) in the harness is the ground and the motor is ground triggered. Unplug the switch from the harness. Check the switch for continuity with the purple and also the gray and white as you move the switch. For the hell if it, check for voltage. If the wipers work at the harness when you jump purple to gray or white, your problem is somewhere between the switch and the connection. Something is plugged in wrong or the purple wire is not grounded and it is somehow pulling a ground through the dash lights (sweet Jesus don’t ask me how that is possible). Check continuity to the purple with a good ground. If you don’t have it, then that might be what is happening. Good luck, sounds like a real head banger.