Renault Clio II 1.9d 2000 - Sudden Power Steering Failure, Electro-Hydraulic Pump Issue, Relay

Hi,
I have a problem with power steering on my Clio II Ph1 from 2000.
At some point, suddenly, without any symptoms, the support stopped. There was no hum, screeching etc. It was just as if someone had cut it off. The pump is electro-hydraulic.
I started with an electric diagnosis. Fuses ok. However, I found one 50 A relay in which the coil was shorted. After applying the voltage, the meter showed 50 A. I was glad and bought a new (used) relay. I installed and ... unfortunately nothing helped. I checked the relay to make sure it was operational and functional.
I went further and checked if there was voltage in the relay connection - there is. I disconnected the pump plug and the voltage on the plug is there. The transition on the pump is. And now I'm stuck because I don't know what to do next.
I would like to add that 2 years ago the pump was regenerated (then the bearings died).

At the moment, I am not going to take the pumps for regeneration again because in my opinion, this is a "crap" and they will delete me as for grain.
Can anyone have an idea where the problem is? My guess is pump, maybe brushes or something? I'm not an electrician, so maybe someone will suggest something.
In addition, during the diagnosis of the pump, I found a broken cable. It broke right after the "pin" connection and I can't find the break point ... I don't know if this cable can affect the pump. Below are photos of the cable.



I will be grateful for your advice.
M.

The cable is from the mask open sensor from the alarm. It has nothing to do with the main problem.

The pump is electro-hydraulic like in the picture below. I do not have my copy number. The pages contain the following numbers: 7701470783; JER120; DSP706; 04550500


So the cable is of little importance in this case. Thank you.
M.

mazi_dg wrote:

maybe brushes

very likely
Most often blocked by dirt

Adam.kowalski432 wrote:

There are no brushes in such pumps

and......

Pump motor connected briefly turns? Communication with the driver is?

Adam.kowalski432 wrote:

There are no brushes in such pumps

They are master, just like the starter.

robokop wrote:

quite similar

Not at all
Starter - carbon, power - copper

kaza12 wrote:

robokop wrote:

quite similar

Not at all
Starter - carbon, power - copper

You have absolutely no idea about anything. Brushes in particular.
https://www.google.pl/search?q=szczotki+rozru...AhXJpqQKHTLdAz0Q_hiw=980B&biAUICigB&biAUICigB
Unless it's brown coal ....

mazi_dg wrote:

The transition on the pump is

Power the pump and see if it spins, there is no electronics there, so if it works, it will start.

Thanks for all the answers.
As far as I know, the brushes are in the pump.
I did not connect for a while and I will not be able to do it before Christmas, but when I come back I will check it for sure.
Now I've screwed everything back together so I have to get to the pump again.
I have a question what to do next, check if:
1. The pump will start
2. The pump does not respond to voltage.


Can connecting to the clip show something?
How to check the connection with the control?
Kisses
M.

mazi_dg wrote:

Can connecting to the clip show something?

What will you hook up to the brushes ???? Now I can see why you don't pay for half a day to repair the car, because you just have no idea how much it is ..... and it can't cost a few PLN.

I see that hate has appeared, which I will not comment, because why?
I am waiting for constructive comments.
M.

@mazi_dg He has already written a constructive comment @robokop . I'll join you. Build the pump, connect it to the battery (pay attention to polarity!). If it does not work, use a wrench (8 or 10), disassemble the pump and check the condition of the brushes, commutator and bearings. Merry Christmas. And after Christmas, buy new parts.

kaza12 wrote:

Starter - carbon, power - copper

and for the rice floor . You'd be surprised, buddy, how much copper is in the graphite-copper sinter of the starter brushes, which, as a rule, work with a very high current, so they must have the lowest possible resistance.

Added after 53 [minutes]:

mazi_dg wrote:

Can anyone have an idea where the problem is? My guess is pump, maybe brushes or something? I'm not an electrician, so maybe someone will suggest something.

we suggest

mazi_dg wrote:

Can anyone have an idea where the problem is?

It does, but you don't care.
If you have a "transition" on the pump motor, and when connecting to the battery, it will strongly "spark" -
the pump thus announces that either the rotor is burnt, the bearings are seized, or that the entire pump is seized, or the stator magnet has come off and the motor is blocked.

Krzysztof Kamienski wrote:

the next mitoman

So get off and take care of yourself.

Thanks for all comments.

Now I know what to do next (thank you Krzysztof) and I'll do it after Christmas.
Krzysztof regarding your comments, I will not agree with you because I take all comments into account and, as I said, I start working after Christmas, so I do not know what you mean, but no matter, because it does not contribute anything constructive to the topic.
I asked what to do when the pump starts to work immediately and continue on the topic.
Also, thank you very much for your help and let you know how cunning the work is so that it can be used by someone for the future.
Kisses
M.

mazi_dg wrote:

I asked what to do when the pump starts to work immediately and continue on the topic.

It's a simple system like a flashlight electrician, the pump relay gets a plus after ignition and the ECM gives it the control ground after starting the engine. You fire the engine, the relay clicks and the pump runs.

@mazi_dg After repair and putting in the car, connecting electrics and hydraulics, bleed the system! Merry Christmas trees

Adam.kowalski432 wrote:
I did not take apart such a pump

why do you speak up and confuse ?!

robokop wrote:
You have absolutely no idea about anything. Brushes in particular.

only the robokop knows everything !!

Strumien swiadomosc ... wrote:
Power the pump and see if it spins

Bravo

mazi_dg wrote:
The pump will start

80A fuse

mazi_dg wrote:
The pump does not respond to voltage.

undress

mazi_dg wrote:
Can connecting to the clip show something?

no

Krzysztof Kamienski wrote:
is the key in the hand (8 or 10)

the next mitoman

Dear Mr. Robokop, this is not a movie where you rule and you are infallible.
I know criticism hurts but this is no reason to remove help for the needy !!!

Moderated By robokop:

I don't see any help here. Only mockery of those taking part in the discussion. Also at the beginning of 14 days of rest to soothe the nerves. 3.1.9. Do not be ironic and do not be mean with the other side of the discussion. Please respect dissenting opinion and other opinions in the forum.

Hi,
the holidays are over, the failure was resolved, but from the beginning.

After the above tips, I connected the pump for a short time and to my surprise, the pump started. I was struggling with my thoughts about what to do, whether to dismantle the pump and disassemble it myself, or maybe give up and give the pump to a mechanic. I chose option two due to the fact that if it is not the engine, I may not solve the problem myself.
I also took the car to a mechanic and it turned out that the pump failed in the transmission between the engine and the hydraulics. Apparently, the shaft broke off and had to be replaced. The mechanic replaced the unlucky part and all the hydraulics and gave a year's warranty. The total cost is PLN 450, for information.

I consider the topic closed.
Thanks again to everyone for your help.
M.