Technical Fiat Ducato Wiper wiring - PLEASE HELP

[Mclouis Steel]

Hi Folks, I am part of a Crowd looking at making simple ventilators. One option uses a Ducato wiper motor. Trouble is I cant get it to work. Obviously I need this outside a vehicle as it would be a tad inconvenient.

As afr as I can tell with the motor sat with the linkage up, I make the LH and RH pins are the parking switch the second pin has approx 350ohm, the centre pin is neutral (or is it) the 4th pin is the 175ohm winding.

So any help in wiring this up outside a vehicle would be fantastic.

Need this urgently we are trying to assemble this tomorrow!

Thanks Geoff

 

[rayc]

Hope this helps. The schematic shows it gets a positive and a negative and a further connections form the Body Control Module to operate the fast slow intermittent etc.

 

[Anthony489]

Hi

To add to the above, the connections on the wiper motor and the harness wire colours for an X250 Ducato (2006 onwards) are as follows:

Pin 1 Black Ground
Pin 2 Light Blue/Black 12V Supply
Pin 3 White/Black Wiper Speed 2 (Fast) command from Body Control Module

Pin 4 White/Blue Wiper Speed 1 (Normal) command from Body Control Module

Pin 5 White/Green Cam feedback signal from Wiper to Body Control Module

When looking at the pins of the connector on the motor, with the "blob" of the connector at the top, Pin 1 is on the Left. Pins 1 and 2 have thicker wires as they carry the main current. The logic commands from the Body Control Module are "Negative", which means they go to a low voltage to cause the function. So if you want normal speed, ground Pin 4 and leave Pin 3 open circuit or it may need to be connected to +12 volts. Ignore the Pin 5 output, this is for parking purposes and you presumably want continuous operation.

I suggest that when experimenting if possible you put resistors of about 100 ohms in series with Pins 4 and 3, to limit current in case of a mistake. The main 12 V supply should be fused, I suggest 20 amps but once the setup is running well you might want to change the fuse rating to about double the current the motor is drawing.

The current draw will depend a bit on the mechanical load you are putting on the motor. Let's say it is 10 Amps at 12 Volts. That is 120 Watts of power. This will divide up into say 90 Watts of useful mechanical work and 30 Watts of waste heat in the motor. It should be OK with this, but if the casing starts to get too warm to touch (about 60 degrees) you might want to place a small computer fan to waft some cooling air over it.


Good Luck !

 

[Mclouis Steel]

thanks guys, I can work with that.

 

[Mclouis Steel]

Thanks folks, I got this sorted the only addition was that for the fast mode I had to join 3 and 4 and put them to ground worked like a charm then. Motor sorted, current measured, speed determined at 12 and 14.4 V, depends what power supply we use.
Geoff

 

[whine0]

As a rule guys in the fiat forum don’t you think it be wise if someone asking help to start a van with a story that don’t quite look right it may be wise not to post help In future it may be your Ducato been nicked key codes and ignition barrels missing come on guys let them go through insurance and recovery first! Don’t help crooks with key code issues

 

[Mclouis Steel]

Excuse me Whine0, didnt you read my thread, I needed to know the wiring detail for a wiper motor, so that we can use it for the motive power for a simple ventilator system. At least a couple of guys replied, if not this could have delayed me even more. You have just no idea how crass your post is. Some of us well quite a lot are trying to devlope equipment from readily available parts and you are just not helping.
Unfortunately there isn't a single finger emoji!

 

[rayc]

Perhaps there was a simple error and the reply was mistakenly made to this topic and not the one about the stolen van non starting problem? No need for a single finger emoji on the forum it is all polite on here.

 

[Pops22]

I don’t normally post I had my ford van nicked and it still bothers me how they got round the immobiliser ? think guys post was for the stolen Ducato thread !seems to be a lot of smart guys on here and anyone could take advantage of your knowledge by signing up sure no offence was intended by anyone! save all your energy for this nasty virus that’s ruining the country.

 

[RS3100]

With the greatest respect to whine0, the information I posted on the relevant thread was from my many years of experience as a forensic autocrime investigator. I see nothing in the thread that would teach anyone involved in stealing vehicles anything that they don't already know, and believe me I am very conscious of not releasing sensitive information into the public domain.

It is quite apparent to me from the OPs photos what has happened and how the van was almost certainly stolen, but believe me the people who use such methods to steal it will already have access to the equipment they need to restore key functionailty if that is what they had intended to do. If the van hadn't been recovered though, I'm afraid that these days most will end up completely stripped with parts advertised for sale on various internet auction sites within a matter of hours, and whatever remains usually torched or dumped.

Most thefts of non-keyless start vehicles nowdays are carried out using electronic compromise devices that plug into the OBD port and do their thing in less than a minute. They are not much bigger than a packet of cigarettes and available relatively cheaply from manufacturers in eastern Europe and the Far East who "employ" teams of people reverse engineering vehicle manufacturers' security systems to identify and create compromises. Their existence is not a secret and anyone can find plenty of videos on YouTube showing them in use.

Look at the way the Fiat secure gateway has already been compromised before it has even been rolled out across their entire vehicle production. The best prevention I can recommend is a well constructed OBD lock such as those manufactured by Trade Vehicle Locks, to name but one supplier, and a good alarm system not operated by the standard vehicle remote or door unlocking function. Delay the thief's ability to achieve his aims with a lot of noise and unwanted attention in the process and most will look elsewhere for the easier option.