'70 wiper motor wiring question

[Relyt610]

Hey Samba community:

Here's my issue-- in a word, the wires in the wiper harness do not match the colors they connect with to the wiper switch in a 4 way T connector. I just want to make sure this is correct before hooking up my battery.

In my wiring diagram, there should be two 31 brown lines, one in the harness and one separate that attaches to the 31 line from the other end of the 31br harness. What is the green wire supposed to be? In my diagram, there shouldn't be a green wire in the harness. 😅

[viiking]

Keep scratching. With that amount of overspray blue, it probably was painted green before.
_________________
1968 1500 RHD Lotus White Beetle since birth. In the hospital for major surgery
1966 Lancia Flavia Pininfarina Coupe - in the waiting room
Discharged: 1983 Vanagon, 1974 1800 Microbus,1968 Low Light,1968 Type 3

[andk5591]

https://www.thesamba.com/vw/archives/info/wiring/1970_VW_Type_1_Poster.jpg
_________________
D-Dubya Manx clone - 63 Short pan,1914.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
"John's car" 64 VW woodie - The first ever
Maxine 61 Cal-look bug - Cindy's daily driver.
Max - 73 standard Beetle hearse project - For sale
66 bug project - Real patina & Suby conversion
There's more, but not keeping them...

[viiking]

[Relyt610]

The green wire is the right-most bead of solder in the 2nd photo, and it runs through the sheath. I cut it to check. I think the brown is 31, and I think that green could be 31b, as the other three match (blk, blk/wt, blk/ylw). If I am wrong, this could be catastrophic, yeah? 😅

[73SlowBug]

[johneliot]

Use the link that andk5591 gave you and trace the wires back to see what they are attached to. The PO may have used any color they had at their disposal.
_________________
John

There is no distinctly American criminal class - except Congress.
Mark Twain

69 bug - "The Grey Ghost"

[Relyt610]

It's the same diagram I have. I have the green wire that runs to the fuse from the wiper switch as shown, but I have 4 wires + only 1 brown coming from my wiper motor. The way this car was when I bought it, it had that 4 way T connector. The diagram doesn't show this... wondering if I need it at all?

[andk5591]

No - the wiper motor connects directly to the switch in the cars that I have worked on.
_________________
D-Dubya Manx clone - 63 Short pan,1914.
Rosie 65 bug - My mostly stock daily driver.
Woodie 69 VW woodie (Hot VWs 7/12).
"John's car" 64 VW woodie - The first ever
Maxine 61 Cal-look bug - Cindy's daily driver.
Max - 73 standard Beetle hearse project - For sale
66 bug project - Real patina & Suby conversion
There's more, but not keeping them...

[runamoc]

here ya go, not much difference 3 years later

_________________
Daily driver: '69 Baja owned 44 yrs - Plan B: '81 Rabbit Diesel LS Deluxe - Plan C: '72 Ghia
Yard Art: 2 Sandrails
Outback: '69 Ghia - '68,'69,'70,'72 Beetle - '84 Scirocco, GTI - Pair of '02 Golfs-
VW Wiring = It's just wires

[ashman40]

This diagram from Speedy Jim's page will help:

Note that the brown #31b wire (which you suspect is your green wire) is shorted to the black #53 wire when the motor is parked. And when not in the parked position, it is OPEN. When NOT parked the #53a purple/black wire is shorted to the #53 black wire.
You can test this by momentarily powering the #53 wire to get the wiper motor to move out of the parked position. Test that #31b is no longer connected to #53, and that #53a is connected to #53. Ground #31b and power #53a until the motor rotates back into the park position, then test that #31b is shorted to #53 and #53a is no longer connected to #53.

Study the above diagram carefully before you run your tests. All tests for continuity should be done with the motor completely disconnected.
_________________
AshMan40
---------------------------
'67 Beetle #1 {project car that never made it to the road }
'75 Beetle 1200LS (RHD Japan model) {junked due to frame rot}
'67 Beetle #2 {2019 project car - Wish me luck!}

[Relyt610]

I think I figured out what the issue is. The previous owner(s) broke the tab off that had the spade connectors and then soldered these wires to it. They do not match up because they aren't for this motor! HAHA! The things I have found on this car... hahaha. So, I think I will send this off as a core for a new one.

VS mine

[ashman40]

I would offer that it is more likely the wiper motor is an aftermarket one and the manufacture decided to use a cheaper soldered connection instead of the push on terminals in the top pic. This is not uncommon. As long as the connections are the same, the wire color is less important. This common with aftermarket turn signal switches that don't follow the stock wire colors at all.

FYI, in late model years, some of the #15 (black wire) circuits were replaced with green wires. This is why you will often see green wires next to black wires on the same fusees at the fuse box.
_________________
AshMan40
---------------------------
'67 Beetle #1 {project car that never made it to the road }
'75 Beetle 1200LS (RHD Japan model) {junked due to frame rot}
'67 Beetle #2 {2019 project car - Wish me luck!}

[runamoc]

[Relyt610]

So what I will try before scrapping it is removing that T connector, and I'll plug those wires directly into the wiper switch and begin my wiring tests. My biggest anxiety is that my motor has the two beads on the far right. All the pictures I have seen of any motors, the solder is on the two center wires.

I found one with a green wire!
https://www.google.com/search?q=type+1+wiper+motor...MT-bNcussM


I know for certain that the two wires soldered to the motor are high/low, so this leads me to think that the black /white far left could be 58a, green (no fucking idea.) And brown is most likely 31b (as to ground the "park" feature)

I have PTSD from a 110v shock last year... is there any way to test these connections before I attach the battery in hopes of not melting wires? This is a whole new can of worms with no known color pattern to go off of. 😂

Thank you all for your prompt responses!

[runamoc]

[ashman40]

[Relyt610]

Ashman-- Thank you so much for your step by step instructions! I will give my college effort and let you know how it turns out. I found a diagram I wasn't able to upload the other night (due to poor internet) which stated on the two motor wires (not the bar) green is low and the red is high, so I deduced that the wires they are soldered to are the same on the bar.

Also! I found that post- '72 reproduction motors (which, mine appears to be since it doesn't have a VW serial on the underside) have a green wire, 53e.

https://www.thesamba.com/vw/gallery/pix/841879.jpg

[Relyt610]

[Relyt610]

I found this, it's a diagram for a post '72 beetle wiper motor. Ah ha! The switch was changed in late '71, thus the wiring also.

I found a link for a relay solution.

http://geofront.co.uk/BugPics/wiper.png