CITROEN C5 MK2 Power steering pump wires

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Kumar9989
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CITROEN C5 MK2 Power steering pump wires

Post by Kumar9989 » 09 Jan 2018, 10:28

I have problem with My C5 MK2
My electric power steering pump wires have been cut off by someone.....
I need the wires confirmation before in put a new pump
1515489785823-1843946094.jpg
Wire connect Power steering pump
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GiveMeABreak
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Re: CITROEN C5 MK2 Power steering pump wires

Post by GiveMeABreak » 09 Jan 2018, 11:54

In order to help further, I'll need the VIN - post it here or send me a private message, then I'll be able to get the correct wring diagram to assist you further.
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Re: CITROEN C5 MK2 Power steering pump wires

Post by Kumar9989 » 09 Jan 2018, 12:12

File as attached
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IMG-20180109-WA0045.jpg
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Re: CITROEN C5 MK2 Power steering pump wires

Post by GiveMeABreak » 09 Jan 2018, 13:00

Well I think there's a lot more going on there than just the PS wires having been cut. I can only see the five wires going to 2 connectors on the PS Assembly. Obviously I can't help you with the ones wrapped up in black tape in the picture you supplied.
Kumar PS Wiring A.PNG
The diagram shows 2 connectors to the PS assembly / ECU:
7122 : power steering electric pump assembly
9 Pin Black Connector
There is a 9 Pin black connector (with only 3 pins being used): Although I have indicated the pin numbers below - be aware that they can change. Check out the wire sleeving - there should be a marking there that indicates the code below:
C7122 (Pin 7) is the variable power steering valve phase 1+ control APC+)
9000C : High Intersystem / Can bus (Pin 4) - To the BSI
9001C : Low Intersystem / Can bus (Pin 1) - To the BSI

2 Pin Black Connector:
BB05 : battery + (Pin 1)
M712B : earth 712 (Pin 2)
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Kumar9989
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Re: CITROEN C5 MK2 Power steering pump wires

Post by Kumar9989 » 09 Jan 2018, 14:41

Thanks for the fast response....
I need advice on this other connect that I have is attach .....it's from other car
Please advise how do I connect it with this socket connect
Thanks in advance
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IMG-20180109-WA0050.jpg
Other car connect
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Kumar9989
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Re: CITROEN C5 MK2 Power steering pump wires

Post by Kumar9989 » 09 Jan 2018, 14:56

Some questions....
My C5 have 6 small wires & 2 black wires
But the digrem is for 3 wires
Please advice
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IMG-20180106-WA0018.jpg
My C5 6 Wires & 2 black wires
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Re: CITROEN C5 MK2 Power steering pump wires

Post by GiveMeABreak » 09 Jan 2018, 16:03

Hi

It's really going to be impossible for me to determine what is what as somebody has done a hatchet job on the wiring. It is possible that some of the 6 wires would go into the 9 pin wiring block (like in your other picture) and 2 of them go to another connector - but I cannot tell. If there is no wiring codes printed on the wires (trace the wire back up the sleeve to see) then the only way you are going to know which wire is which, is by tracing them back.

You could check another C5, but beware it may need to be a similar specification model - as there are different PS pumps and therefore the wiring may be different - also the year is important as the MK II is different to the MK I.

There's no way for me to know what the other 2 black sheathed wiring clumps are at all from a picture.

I have found this picture of a Power Steering ECU from a Citroen C3 - Now this may be different, but it may help you regarding those other wires.
C3 PS ECU.PNG
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Re: CITROEN C5 MK2 Power steering pump wires

Post by GiveMeABreak » 09 Jan 2018, 16:14

I've just dug up another diagram for the system on your C5 that should help:

Here are the connections and pins - "NC" means Not Connected" or a spare.
Kumar PS Wiring B.PNG
KEY:
Power connector " a" :
Terminal 1 : + 12 V
Terminal 2 : Earth
Connector "b" :
Terminal 1 : CAN
Terminal 2 : CAN
Terminal 3 : NC
Terminal 4 : CAN
Terminal 5 : CAN
Terminal 6 : NC
Terminal 7 : Ignition+
Terminal 8 : Line
Terminal 9 : NC

So it looks on the face of it (and I cannot be sure) that the 2 large black wires are for the secondary connector (1 & 2) supplying the Earth (2) and the 12V (1))
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Kumar9989
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Re: CITROEN C5 MK2 Power steering pump wires

Post by Kumar9989 » 09 Jan 2018, 16:35

Thanks a lot for your help......
I will pass this information to my mechanic
We will try it tomorrow morning Malaysia time.
We have check one C5 MK2 here in Malaysia
There is 3 wires connection......
Will update you
Thanks again
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Re: CITROEN C5 MK2 Power steering pump wires

Post by GiveMeABreak » 09 Jan 2018, 16:46

Ok, Best of luck - didn't realise you are in Malaysia - been there a few times to Kota Tinggi waterfall when I lived in Singapore.
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Kumar9989
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Re: CITROEN C5 MK2 Power steering pump wires

Post by Kumar9989 » 10 Jan 2018, 08:57

Hi There
We have try .....but we did want to take the risk

If your could please send me with 6 Wires digram its will be helpful
I have attached with 3 wires that u send
I need with 6 Wires

Thank you
Attachments
IMG-20180110-WA0042.jpg
3 wire digram ....we need 6 Wires digram
IMG-20180110-WA0043.jpg
3 wire digram ....we need 6 Wires digram
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Re: CITROEN C5 MK2 Power steering pump wires

Post by GiveMeABreak » 10 Jan 2018, 11:47

I'm sorry, but there is no other diagram that I have. This is the only one for your vehicle that is showing and that is the extract I have posted up. Have you checked the sleeve of the wires for the code numbers?
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Re: CITROEN C5 MK2 Power steering pump wires

Post by RichardW » 10 Jan 2018, 13:13

Given that it's a common (I think?) PAS and susp pump are the other wires shown on the suspension wiring diag? Will still need to find the wire numbers, or someone else with a picture to cross reference to work out which is which.
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Re: CITROEN C5 MK2 Power steering pump wires

Post by GiveMeABreak » 10 Jan 2018, 14:16

I had a look on several engine types across the range Richard and even the V6 types to see if there was one with a 6 wire config - and they are all the same connection and number of wires, with a different type of ECU for the V6. This car is a 2005 C5 II 5 DOOR SALOON 2.0 i 16v 143 4-SPEED AUTOMATIC GEARBOX.

I suspect that the picture that Kumar9989 posted showing the hacked wiring cluster may well contain wires for other components that have just been routed into the sane harness TBH and that is probably adding to the confusion. So I agree that without a similar model for comparison it is going to be guesswork on this.

The CAN communication wires are for the ESP for vehicle speed to alter the assistance of the pump, so getting these right will be key and could mean all or no assistance if not connected correctly I suspect - amongst other issues no doubt!
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Kumar9989
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Re: CITROEN C5 MK2 Power steering pump wires

Post by Kumar9989 » 10 Jan 2018, 16:10

Hi Guys
Thanks for the reply....
I have seen two units for C5 MK2 today
Both of them have C5 have 3 wires connect.
Tomorrow we are having a look on other C5 MK2.
Hopefully is will have 6 Wires connect
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