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Hey guys.
I'm currently replacing the engine harness with a new one.
When I connect the Window shield wiper motor connector, is it correct that electricity flows to the + terminal of the ignition coil and to ground?
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The wires that you circled are all SEPARATE wires inside the 'bundle' and they all go all over your car.
The black wire shown on the bottom right is NOT connected to the other wires.
Last edited by Peterbuilt; Aug 23, 2021 at 11:36 PM.
Reason: spelling
The wires that you circled are all SEPETATE wires inside the 'bundle' and they all go all over your car.
The black wire shown on the bottom right is NOT connected to the other wires.
Please read the ATTENTION note in the upper left hand corner of the document. It is NOT a wiring diagram which is what you need to be able to answer your questions. Wiring diagrams are readily available. Check out Willcox Corvette’s website.
Please read the ATTENTION note in the upper left hand corner of the document. It is NOT a wiring diagram which is what you need to be able to answer your questions. Wiring diagrams are readily available. Check out Willcox Corvette’s website.
Yes! There is also a 1971 wiring diagram, but by comparison, it feels wrong to connect the wiper motor connector to the black wire to pass electricity. Comparing the old and new wires, the number of wires and the location of the wires are different.
Yes! There is also a 1971 wiring diagram, but by comparison, it feels wrong to connect the wiper motor connector to the black wire to pass electricity. Comparing the old and new wires, the number of wires and the location of the wires are different.
So if I'm understanding this correctly -
when you plug in the wiper connector- the grounds become hot- or read +12V?
Look at the pic and then tell me what order your wires are in- should be - left to right- green-yellow -blue
Hey guys.
I'm currently replacing the engine harness with a new one.
When I connect the Window shield wiper motor connector, is it correct that electricity flows to the + terminal of the ignition coil and to ground?
The ignition key is still off.
Thank you very much.
Do NOT use this diagram to sort out your wiring. It is a blanket diagram and does not show the complete termination of each wire back to the firewall plug. This is confusing you.
Yes! That's right, it also flows to the ignition coil + wire. It is a photograph of the wiper connector.
That is odd- as the yellow wire for the wiper is switched on in ACC and ignition but not start.
So is the constant hot wire from the firewall switch (red/white stripe) plugged into the wiper?
I'd try disconnecting that- as you could have a bad wiper motor- maybe solenoid- and it could backfeed into the harness.
You can also take your meter and measure the voltage at the terminals at the wiper.
After reading this thread again....I ran into this on a 72' last year......if the wiper switch is not sufficiently grounded...the grounds become hot.....it can trip you up pretty badly. The physical switch itself has to be grounded to check power and to function properly. I believe that is what I am reading above, no?
That is odd- as the yellow wire for the wiper is switched on in ACC and ignition but not start.
So is the constant hot wire from the firewall switch (red/white stripe) plugged into the wiper?
I'd try disconnecting that- as you could have a bad wiper motor- maybe solenoid- and it could backfeed into the harness.
You can also take your meter and measure the voltage at the terminals at the wiper.
Let us know what you find-
Richard
Thank you!
I'll check and report back.
The wiring harness I ordered was for 1970is that relevant?
After reading this thread again....I ran into this on a 72' last year......if the wiper switch is not sufficiently grounded...the grounds become hot.....it can trip you up pretty badly. The physical switch itself has to be grounded to check power and to function properly. I believe that is what I am reading above, no?
Jebby
yes
Are you saying that the interior wiper switch is defective?
IIRC- the difference between the 70 and 71 was the TCS- transmission controlled spark on manual cars.
Turned off vacuum advance in 3-4th gear at certain engine temperatures- most ended up in the trash can back in the day!!!
Also, it is very easy to plug the connector onto the switch backwards. Mine was like that and I only had wiper activity when I pressed the washer button in.
Also, it is very easy to plug the connector onto the switch backwards. Mine was like that and I only had wiper activity when I pressed the washer button in.
Are you saying it's the orientation of the connector?
IIRC- the difference between the 70 and 71 was the TCS- transmission controlled spark on manual cars.
Turned off vacuum advance in 3-4th gear at certain engine temperatures- most ended up in the trash can back in the day!!!
So you should be OK
Thank you!
I'm not very good at English, but there are very few corvette materials and information in Japan.
Thank you to the senior members of the corvette forum.
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1971Questions about engine wiring harnesses
