elephino?
Thread Starter
Drifting
Joined: Oct 2007
Posts: 1,458
Likes: 1
From: Collinsville MS
St. Jude Donor '08
elephino?
what is it? My wipers wont work, when I touch the switch something was clicking like mad in the center console. I took it apart and found a small electronic box with two factory wiring harnesses attached to it just sitting under the console, it fell out when I pulled the side trim off. Anyway, I can barely touch the switch and this thing starts clicking. I have been through all my parts books and cant identify it. I can find a brief reference to it in my rebuild book and it says its possibly the wiper pulse ASM.
I have pics of the thing, but I cant figure out how to post it. I guess this thing is bad because of all the clicking but I cant identify it to get a new one!
anybody else had this problem?
78 Pace Car.
I have pics of the thing, but I cant figure out how to post it. I guess this thing is bad because of all the clicking but I cant identify it to get a new one!
anybody else had this problem?
78 Pace Car.
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
Here's how to post pics. That usually speeds up the process when pics are involved.
http://photos.imageevent.com/durango...g%20Images.pdf
http://photos.imageevent.com/durango...g%20Images.pdf
Thread Starter
Drifting
Joined: Oct 2007
Posts: 1,458
Likes: 1
From: Collinsville MS
St. Jude Donor '08
http://i223.photobucket.com/albums/dd18/jbratu/038.jpg
thanks for the info on posting the pics, hopefully I did it right
thanks for the info on posting the pics, hopefully I did it right
Team Owner
Joined: Aug 2006
Posts: 24,125
Likes: 15
From: Columbia Missouri
You did great. If you want the actual picture to show up in the post, just add [IMG] to the front of the link, and [/IMG] to the back of it. I changed them in the quote, and you see how the picture shows up.
Thread Starter
Drifting
Joined: Oct 2007
Posts: 1,458
Likes: 1
From: Collinsville MS
St. Jude Donor '08
thanks again, I was wondering how to do that. appreciate your taking the time to help me out!
Now, does anyone know what this thing is called and where I can find one or test this one?
Now, does anyone know what this thing is called and where I can find one or test this one?
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
Race Director
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
dalewilson99 is repairing them.I think he can also advise on how to test them before sending them to him.
edit-here is a thread about the controller
http://forums.corvetteforum.com/show...post1562605112
edit-here is a thread about the controller
http://forums.corvetteforum.com/show...post1562605112
Last edited by ...Roger...; Nov 20, 2007 at 04:50 PM.
Thread Starter
Drifting
Joined: Oct 2007
Posts: 1,458
Likes: 1
From: Collinsville MS
St. Jude Donor '08
thanks for the info, the other guy's problem is exactly like mine. I had tried to search it also but had looked for pulse wiper and such. I dont know anyone around here that has one I could check mine out in, guess I will just look around and see if I can replace it somewhere. thanks for all the help!
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Instructor
Joined: Aug 2006
Posts: 188
Likes: 1
From: Kamloops BC
lets test the rest of the circuit to see if it works.
Remove the controller
Jumper the yellow wire to the brown wire on the three conductor plug.(you should be able to stuff a wire into the plug)
Wipers should work on hi and low. Delay will not work and the washer pump will not work.
My first guess is that there is a bad connection at the wiper switch or a bad ground from the wiper switch.
Dale
Remove the controller
Jumper the yellow wire to the brown wire on the three conductor plug.(you should be able to stuff a wire into the plug)
Wipers should work on hi and low. Delay will not work and the washer pump will not work.
My first guess is that there is a bad connection at the wiper switch or a bad ground from the wiper switch.
Dale
Thread Starter
Drifting
Joined: Oct 2007
Posts: 1,458
Likes: 1
From: Collinsville MS
St. Jude Donor '08
lets test the rest of the circuit to see if it works.
Remove the controller
Jumper the yellow wire to the brown wire on the three conductor plug.(you should be able to stuff a wire into the plug)
Wipers should work on hi and low. Delay will not work and the washer pump will not work.
My first guess is that there is a bad connection at the wiper switch or a bad ground from the wiper switch.
Dale
Remove the controller
Jumper the yellow wire to the brown wire on the three conductor plug.(you should be able to stuff a wire into the plug)
Wipers should work on hi and low. Delay will not work and the washer pump will not work.
My first guess is that there is a bad connection at the wiper switch or a bad ground from the wiper switch.
Dale
I havent even started on the headlights yet........... gotta go get some more beer!
Thread Starter
Drifting
Joined: Oct 2007
Posts: 1,458
Likes: 1
From: Collinsville MS
St. Jude Donor '08
stupid me forgot the ww motor was a screw type and you cant pull the arm to make it move. Anyway, motor is ok, it got a new lube job while I had it down. Checked all the wires and the grounds and everything is ok, IT JUST WONT WORK when plugged into the harness.
Found the little circuit board on the fuse box, they have spliced into it and put a 10 amp blade fuse in line. Fuse is good, could the circuit board be bad? There is still power going thru the fuse, I can only assume its inline with the ww motor.
Any good ideas?
Found the little circuit board on the fuse box, they have spliced into it and put a 10 amp blade fuse in line. Fuse is good, could the circuit board be bad? There is still power going thru the fuse, I can only assume its inline with the ww motor.
Any good ideas?
Instructor
Joined: Aug 2006
Posts: 188
Likes: 1
From: Kamloops BC
Sorry for taking so long to reply I am at work now and it has been very busy.
Here is a wiring diagram for your wipers
http://www.corvetteforum.net/c3/tune.../index25.shtml
With the jumper (brown to yellow on the 3 conductor connector) installed check to see if you have 12volts at the wiper motor center wire(white).Or jumper 12 volts directly to the center terminal of the wiper motor.
Ground the top connection on the motor(purple) and bottom connection(gray) . wipers run on low.
open the bottom connection, wipers run on high.
open the top and ground the bottom. Wipers park and stop.
If your wiper motor checks out ok and the 12 volts from the jumper is good then the problem must be at the wiper switch or the wires from the motor to the wiper switch or the ground wire from the wiper switch to the frame.
I think that the 78 included the option of removing the wiper controller from the circuit. I think that you remove the little circuit board from the fuse panel and replace it with a 25 amp fuse. I cannot comfirm this though as I do not have a 78.
Dale
Here is a wiring diagram for your wipers
http://www.corvetteforum.net/c3/tune.../index25.shtml
With the jumper (brown to yellow on the 3 conductor connector) installed check to see if you have 12volts at the wiper motor center wire(white).Or jumper 12 volts directly to the center terminal of the wiper motor.
Ground the top connection on the motor(purple) and bottom connection(gray) . wipers run on low.
open the bottom connection, wipers run on high.
open the top and ground the bottom. Wipers park and stop.
If your wiper motor checks out ok and the 12 volts from the jumper is good then the problem must be at the wiper switch or the wires from the motor to the wiper switch or the ground wire from the wiper switch to the frame.
I think that the 78 included the option of removing the wiper controller from the circuit. I think that you remove the little circuit board from the fuse panel and replace it with a 25 amp fuse. I cannot comfirm this though as I do not have a 78.
Dale
Thread Starter
Drifting
Joined: Oct 2007
Posts: 1,458
Likes: 1
From: Collinsville MS
St. Jude Donor '08
Success! I put my multimeter on it to check the voltage and wasnt showing any, although the wire had power, it was the GROUND!!! Thanks for the advice Dale, you got me to thinking again, I guess I have Vettecramps in the brain. Also, the switch is bad, but it still works I am going to order a new one.
I plugged the pulse module back in and the wipers still work, not sure if the pulse mode is working right or not as the switch has several bad spots in it but it will work if you wiggle it. Thanks again Dale, now I can get some beer and install the new body mounts.
I plugged the pulse module back in and the wipers still work, not sure if the pulse mode is working right or not as the switch has several bad spots in it but it will work if you wiggle it. Thanks again Dale, now I can get some beer and install the new body mounts.
8th Gear
Joined: Jan 2016
Posts: 8
Likes: 0
3 conductor plug?
lets test the rest of the circuit to see if it works.
Remove the controller
Jumper the yellow wire to the brown wire on the three conductor plug.(you should be able to stuff a wire into the plug)
Wipers should work on hi and low. Delay will not work and the washer pump will not work.
My first guess is that there is a bad connection at the wiper switch or a bad ground from the wiper switch.
Dale
Remove the controller
Jumper the yellow wire to the brown wire on the three conductor plug.(you should be able to stuff a wire into the plug)
Wipers should work on hi and low. Delay will not work and the washer pump will not work.
My first guess is that there is a bad connection at the wiper switch or a bad ground from the wiper switch.
Dale
I have the similar clicking going on at the controller behind the pass seat on my 81. Have checked the motor by direct feed onto the three pins at the motor, it works.
Could you tell me where the 3 conductor plug is? There is no yellow wire at the controller, which is what I thought was the go-to place to jump yellow to brown.
Have prised the dash switch out but cannot get to the anchor point inside...the steel box plate is firmly anchored somehow.
Have opened the switch, all contacts appear to be good, lightly cleaned with fine sandpaper, and put back together. The clicking at the controller still there, and still no go with the wipers.
I see you mention grounding issues as a possibility so am currently trying to figure where I should be looking from the dash switch onwards...
Thanks Richard
Team Owner
Joined: Sep 2006
Posts: 31,173
Likes: 4,250
From: Westminster Maryland
Hi Richard,
I see this is your first post, so WELCOME!
You've pulled up an 8 year old post which isn't always a good idea.
For instance, Dale, hasn't been active on this Forum since 2013. So it may be that he won't even see your post.
You might want to start your own thread with your question and you'll be sure to get current 'reads' and 'replies'.
Good Luck!
Regards,
Alan
I see this is your first post, so WELCOME!
You've pulled up an 8 year old post which isn't always a good idea.
For instance, Dale, hasn't been active on this Forum since 2013. So it may be that he won't even see your post.
You might want to start your own thread with your question and you'll be sure to get current 'reads' and 'replies'.
Good Luck!
Regards,
Alan
Last edited by Alan 71; Jan 7, 2016 at 06:25 PM.
Race Director
Joined: Apr 2009
Posts: 19,294
Likes: 2,753
From: Charlotte NC
If you bench tested the motor while it was in the car using your own wiring...and KNOWING that the center wire in the 3 wire connector that goes to the motor is 12 volt power when the key is on...and the outer two terminals are GROUNDS that are being switched by the wiper switch.....REMOVE the three wire connector at the motor and verify what is happening when you use the switch. IF these two outer wires switch as required...I would be concerned if the motor is grounded as required.
DUB
DUB
