Please help. Is the wiper motor on a 1989 240 a parking motor or is the attached relay what’s responsible for parking.

[Oktobr]

I’m trying to have a on(fast) / off (park) single speed switch for my wiper motor.

I can activate the green high speed wire. But I can’t get the wipers to park using the black white park wire.

Thanks ahead of time.

 

[nmerriw]

They self park internally, this picture from cleanflametrap.com shows the mechanism

 

[Oktobr]

Anyone know what wires need to be connected to park the wiper. I can get it to park only if the OEM stalk switch is present. But I need to wire it up for a on off action push button. I do have 5 pin relays I assume 87a being used for park but I can’t get it to work.

 

[Oktobr]

I see guys operating the wipe and park with a simply 5 pin relay. But according to the green book. Like what?????

If anyone can help further please chime in

 

[Khrrck]

I see guys operating the wipe and park with a simply 5 pin relay. But according to the green book. Like what?????

If anyone can help further please chime in

Took me a lot of staring at this diagram to figure out what's going on.

There are 4 wires at the wiper motor

1 of them (53A) gets constant power when car is on
1 of them gets switched power (apply power to this to run the wipers)

the remaining 2 wires need to be looped TO EACH OTHER. they carry current from the parking contact 31B to the motor.

therefore, when the wiper motor is switched off, it will get power through the loop and continue to rotate... until the plastic cam inside the motor separates the two contacts, which should stop the wipers in the parking position.

I presume that normally that loop is routed through the wiper switch for some reason to do with the intermittent function.

 

[Oktobr]

Thank you partner. Imma try to make sense of it. I really appreciate the help it trying to solve this.

 

[Khrrck]

Thank you partner. Imma try to make sense of it. I really appreciate the help it trying to solve this.

I just hope I'm reading the diagram correctly... but it looks like that's what's going on based on what i'm seeing. Can't help you identify which wire is which though, I can only read a couple of the markings.

 

[Oktobr]

Here’s another page

 

[Oktobr]

1 more

 

[Oktobr]

1

 

[Khrrck]

1 more

OK -

53A (yellow) is hot when ign is on
53b (green) goes to the wiper on/off switch of your choice (hot)
53 (brown) and 31 (white with some kind of stripe???) get connected to each other

Try that, see if it works.

 

[Oktobr]

OK -

53A (yellow) is hot when ign is on
53b (green) goes to the wiper on/off switch of your choice (hot)
53 (brown) and 31 (white with some kind of stripe???) get connected to each other

Try that, see if it works.

Ok I’ll try this like you suggested .

Green is high speed (trigger on)
Brown is slow speed (tie into white black black stripe )
White is black stripe (tie into brown)
Yellow which is main power hot with ACC

This is for track car build. Car no longer uses the key ignition, turn signal or wiper stalks.

I’m running a Quickcar main power switch from batt. That branches off into a pos /neg. Bus fuse panel.
And a fused push button control panel. From the fuse bus panel I’m going have my LongAcre push button switch panel.

The push button panel will only eventually control power to the push button start. Then an electric fan safety override, an internal light of some sort, two fan blowers for driver compartment comfort.

Here the thread on all that getting put in.

PLEASE HELP 100$ for any electrical guru that can FaceTime to help get 1989 240 back on road.

I have a 1989 240 NA auto, non ABS. Car has been stripped down for track usage. Everything in drivers cabin is exposed. Dash removed steering wheel removed. AC /heater removed. Wire harness at fire wall has been cut with the wires numbered. Need assistance via FaceTime or text and phone...

www.turbobricks.com

 

[Oktobr]

Here’s a good video on this subject.

 

[bobxyz]

I’m trying to have a on(fast) / off (park) single speed switch for my wiper motor.

But I need to wire it up for a on off action push button.

I'm not following, do you want both an on/off wiper switch and either a pushbutton hold-to-wipe switch or a pushbutton push-to-wipe-a-few-times switch?

For the on/off switch, do you have an available SPDT 3-terminal switch?

 

[Oktobr]

Yeah I need to have just one push button to start the wiper in fast mode. Don’t need slow. And when done press button to stop and it auto park.

No don’t have that SpDT switch. It’s just a hot coming in and on button to complete or disconnect circuit. I can run yellow hot. And the green to the push button to turn on off no isssues. It’s getting it to park that’s the problem. Which means that park circuit needs to be on all time then drop off when active wiping. Then come back in after stop. Which 87a is generally used for in a relay. But I can’t figure out how to have park active

 

[Oktobr]

I hav brown. Which is slow speed taken out completely of the usage since I didn’t think I’d need slow at all. But you were saying that that white with black stripe (park I assume) my need to tie together with brown

 

[bobxyz]

You'll need a double-pole (3-terminal) switch, either a toggle switch or a latching pushbutton (i.e. push and it latches in the down position, push again and it pops back up). I'd need to think about how to do it with a relay and a non-latching pushbutton.

 

[Oktobr]

I really appreciate your input on all this. Absolutely owe you a beer.

 

[Oktobr]

Here’s the switch panel and push button

 

[Oktobr]

You'll need a double-pole (3-terminal) switch, either a toggle switch or a latching pushbutton (i.e. push and it latches in the down position, push again and it pops back up). I'd need to think about how to do it with a relay and a non-latching pushbutton.

The push button latches