Wipers what each pin does

[Nigel]

Hi Peter,
On mine the stalk has 4 positions, off, int, 1st speed, 2nd speed.
No dash button, except for the rear wipe of course.

Nigel

[peteracs]

Hi Nigel

I did wonder if the facelift had it all on the stalk, unlike the pre facelift cars where the switch is in the centre console. Always confusing only having the pre facelift wiring circuits in Haynes as a lot changed on the later cars.

Peter

[Neil-yaj396]

Hi Nigel

I did wonder if the facelift had it all on the stalk, unlike the pre facelift cars where the switch is in the centre console. Always confusing only having the pre facelift wiring circuits in Haynes as a lot changed on the later cars.

Peter

Yes Peter, all on the stalk after facelift II.

[peteracs]

Hi Neil

But not the first Facelift?

Peter

[JohnFol]

Finally getting round to some of the electrical problems and am tackling the slow wipers.

Blue wire when the block connector is disconnected is 0v
When connected it reaches ~8v, and injecting 12v brings the slow speed to life. What I can't work out is the path of the blue wire to a 12v supply. Any pointers?

[WestonE]

Search under Peter's posts I think he mapped this out as part of a wiring upgrade. Otherwise it is back to the wiring diagram for trace the wire.

[Nigel]

Hi John,
I tried going through the wire tracing process as I had the same issues,
i.e. very slow 1st speed.
I never did find the problem, but a full re-wire of the system cured it.
I replicated all the wiring colours and made a new loom.
There are only 3 connector points, the column switch, the intermittent relay and
the wiper motor. I didn't need to involve the hazard switch in my work, that still functions
as normal.

I still suspect that the cause is very high resistance on old cabling, the copper core
that looks black when exposed.

Nigel

[peteracs]

This was what I found.

http://www.lanciabeta.co.uk/forum/index.php?topic=1936.520

Peter

[JohnFol]

I'm in 2 minds about changing the stalk assembly, or at least cleaning out the contacts. Worked wonders on a old Marina I used to own.

From what I'm hearing, I could temporarily take the blue wire from the switch and run a new one to the motor to prove it's high resistance Vs issue in stalk assembly.

[Ferrit]

I'm in 2 minds about changing the stalk assembly, or at least cleaning out the contacts. Worked wonders on a old Marina I used to own.

From what I'm hearing, I could temporarily take the blue wire from the switch and run a new one to the motor to prove it's high resistance Vs issue in stalk assembly.

So I have slow and/or intermittently working wipers on my new to me Beta.  What would be the consensus plan of attack?  Is it worth cleaning all the contacts at the stalk end and removing the mech and motor for a strip down, clean and re-grease first, then go to the top of this post and re-read and then proceed?

Mark

[peteracs]

Hi Mark

Apart from a faulty motor, there are two issues common with the wipers, first is poor contacts from the stalk and other connections and in the mechanism where the spindles that go through the scuttle to the outside world, these are often not as free as you would like.....  To free them off and lubricate normally requires removal of the wiper assembly, though it may be possible to do in situ by removing the wiper arms, running the motor and applying some lubrication to the spindles.

Peter

[Ferrit]

So today after running it temp after the cam-belt I had the cowls off the switch stalks ready for a new steering lock, I think I spied a little puff of smoke.  I will strip it down this week and investigate.  Battery off at the moment.

[SanRemo78]

Smoke is never good and I hope it was your imagination! Check the wiring to the ignition switch isn't chafing on the steering column, mine has the plastic tube worn through around the pivot for the steering wheel and the wiring within that was scuffed too....

[Ferrit]

sorry opening old posts and then realised I have been here also :-)

my other post:

I need to look at this.  Did everyone get to a happy place in the end?

I and going to start with a strip of the mech and check out what it feels like.  I know its not the answer but have ordered a lhd switchgear to swap this over, plus I have a new ignition switch to fit.

M

So do as above and if all else fails replace the wiring as Nigel did?

M

[Nigel]

Mark,
I removed the wiper assembly, stripped out the stalk shafts and cleaned and lubed
everything, then ran it on the bench.

The rack can be a fiddle to remove, patience and care required.
(whilst it's out it's a good time to rust-proof the underside of that scuttle)

This didn't solve the slow wipers once back in the car, hence the rewire.

N.

[Ferrit]

Roger that Nigel :-)

[peteracs]

Hi

This is a bit of an update albeit many months on.

I took thr opportunity to open up the original intermittent relay and now can reveal how the blue is wired, all fairly simple if not obvious.

So my original connections for the new relay I was trying which worked was as follows.

I - intermittent wipe enable - needs 12V to activate it so use Red wire
31 - GND so use Yellow
53M/53E - Pulse output so connect to wiper start so use Blue/White
53S/31B - This is the confusing one, needs to be connected to GND to get pulses on 53M, connect to Yellow
15 - main 12V in, so provides power to both relay and to wipers to start them, Red wire
T - washer function no use so N/C

The Blue wire from the original relay is connected to to the red +12V whenever the Blue/White is disconnected from the 12V. Not sure the new relay can do that, so may need a separate changeover relay to effect this. I have now made up a relay to replace the original without the blue wire and will see how it gets on.

[peteracs]

Hi

An update on the replacement for the wiper intermittent relay. Actually a bit of a fail, but I now understand fully the required actions of the relay, I missed a couple of important points......

The relay has 4 wires going to it, the motor has 5.

Relay connections

Red - +12V from stalk when in int position
Yellow - GND from stalk when in int position
Blue - +12V when relay activates
Blue/white - Pulled the GND when relay is NOT activated, ie when Blue is NOT 12V

Wiper connections
Black - GND permanent connection
Grey - +12V Fast speed continuous
Blue - +12V Slow speed continuous fed by stalk AND Intermittent fed from relay
Blue/White - As per relay above, GND when Blue is not +12V, used to bring the wipers to a halt
Blue/Black - +12V in int position, this powers the motor UNTIL it reaches the park position, then stops, also
                   used to park wipers when switched off, fed from stalk.

I am therefore going to have a further look at the modern relay and see if it is possible to use it to fully reproduce the needs above......

Peter

[Ferrit]

I tried to connect the battery direct to the wiper motor and nuffin.  I am now trying to remove the unit, hell this is hard!  Any tips, drivers wiper spindle will not budge.

[peteracs]

Hi Mark

It is a bit awkward to manipulate it out , but when you say it will not budge do you mean after you undo the nut and remove the plastic piece it will not press down?

Peter