Electrican help please? Citroen C4GP ABS wiring mare (fixed)

This is the Forum for all your Citroen Technical Questions, Problems or Advice.

Moderator: RichardW

pauljordanie
Posts: 62
Joined: 14 Nov 2018, 13:39
Location: Ireland
My Cars: 2009 Citroen C4GP

Re: Electrican help please? Citroen C4GP ABS wiring mare (fixed)

Post by pauljordanie »

Its the same as this one.
Attachments
plug.JPG
pauljordanie
Posts: 62
Joined: 14 Nov 2018, 13:39
Location: Ireland
My Cars: 2009 Citroen C4GP

Re: Electrican help please? Citroen C4GP ABS wiring mare (fixed)

Post by pauljordanie »

I found this diagram. I think this is it.

Thank you for the help it's much appreciated.
Attachments
Bosch ESP ABS Plug Pin out.jpg
Online
User avatar
GiveMeABreak
Forum Admin Team
Posts: 36997
Joined: 15 Sep 2015, 19:38
Location: West Wales
My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow
x 5645

Re: Electrican help please? Citroen C4GP ABS wiring mare (fixed)

Post by GiveMeABreak »

Look at this photo - it is similar to the one you have although not the same - but you get the idea - there are little numbers on the corner pins of the plug - you can then work out what is what:
PSA Plug Pins.PNG
Just make sure you check the numbers on your own plug as again this is another type of plug and you don't want to use a diagram for another plug
Please Don't PM Me For Technical Help

Marc
pauljordanie
Posts: 62
Joined: 14 Nov 2018, 13:39
Location: Ireland
My Cars: 2009 Citroen C4GP

Re: Electrican help please? Citroen C4GP ABS wiring mare (fixed)

Post by pauljordanie »

Yes your diagram is the male side where I posted the female side. I'll probe the plug end and see what voltages I pick up and see if they correspond with the info you shared. Thanks for your help!
pauljordanie
Posts: 62
Joined: 14 Nov 2018, 13:39
Location: Ireland
My Cars: 2009 Citroen C4GP

Re: Electrican help please? Citroen C4GP ABS wiring mare (fixed)

Post by pauljordanie »

I did some testing and I have gnd where I should and +V where I should apart from 7112A pin 32 Angle sensor 12V power supply. I wonder if this should be +V all the time?
Online
User avatar
GiveMeABreak
Forum Admin Team
Posts: 36997
Joined: 15 Sep 2015, 19:38
Location: West Wales
My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow
x 5645

Re: Electrican help please? Citroen C4GP ABS wiring mare (fixed)

Post by GiveMeABreak »

It indicates +12 V Power Supply for 7112A and 7112U - which goes to the ESP accelerometer gyroscope (7804)
Please Don't PM Me For Technical Help

Marc
pauljordanie
Posts: 62
Joined: 14 Nov 2018, 13:39
Location: Ireland
My Cars: 2009 Citroen C4GP

Re: Electrican help please? Citroen C4GP ABS wiring mare (fixed)

Post by pauljordanie »

Ok I checked the voltages and everything look good. My initial problem here is with a few cheaper OBD reader I get no comms with the ECU. With Diagbox & Lexia I get an ECU, ABS ECU incoherent fault (U1208), but it does scan through the different systems and read fault codes. I presume the fault on the car is effecting the CAN bus. Since I cant disconnect the ABS/ESP ECU from the circuit to isolate from the CAN bus and test , I'm not sure where else to go other than buy another ABS unit and hope it solves the problem. I don't really like this idea as its not diagnosing the fault really. The symptoms with the car is that the ABS fault light comes on the dash every so often and when it does happen seems to do so at lower speed e.g 46kph. Not sure where to go next.
Online
User avatar
GiveMeABreak
Forum Admin Team
Posts: 36997
Joined: 15 Sep 2015, 19:38
Location: West Wales
My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow
x 5645

Re: Electrican help please? Citroen C4GP ABS wiring mare (fixed)

Post by GiveMeABreak »

This is what I have for Fault U1208. This may give you some more pointers to check - but if the wiring is faulty (as per that last video) it may make it hard to diagnose short of checking the wires individually. The worst case scenario is that if you do order a replacement you should be able to return it if it proves that the fault is still there.
Fault codeU1208
After sales description of the fault codeNo communication with the engine management ECU fault : Data invalid
Description of the diagnosticsPossibility 1
- The time for recording the fault code is 500 milliseconds
- The clutch pedal sensor values sent by the engine management ECU are not coherent with those of the ESP ECU
Possibility 2
- The time for recording the fault code is 500 milliseconds
- The datastreams from the engine management ECU are not valid
Possibility 3
- The time for recording the fault code is 500 milliseconds
- The accelerator pedal sensor values sent by the engine management ECU are not valid
Conditions of activation of the diagnosticsIgnition switched on
Conditions of disappearance of the faultPossibility 1
- Clutch pedal sensor values sent by the engine ECU coherent with those of the ESP ECU
Possibility 2
- The datastreams from the engine management ECU are valid
Possibility 3
- The accelerator pedal sensor values sent by the engine management ECU are valid
Down-grade modes if fault presentPossibility 1
- The anti-lock braking system (ABS) function switches to down-grade mode
- Immediate cutting of all the speed control functions (Electronic stability control (ESP))
Possibility 2
- The anti-lock braking system (ABS) function switches to down-grade mode
- Immediate cutting of all the speed control functions (Electronic stability control (ESP))
- Hill start assistance function inactive
- Switching of the electric parking brake to manual mode
Possibility 3
- The regulation functions remain active
- Hill start assistance function inactive
- Switching of the electric parking brake to manual mode
Switching on of the warning lamp and/or warning messagePossibility 1
-
Possibility 2
- Warning lamp ESP/ASR
Possibility 3
- Warning lamp ESP/ASR
- Electric parking brake automatic functions deactivation warning lamp
- "SERVICE" warning lamp
Main customer complaints likelyLighting of the ABS and ESP warning lamps
Suspect areasConnectors
CAN network
ESP ECU
Please Don't PM Me For Technical Help

Marc
pauljordanie
Posts: 62
Joined: 14 Nov 2018, 13:39
Location: Ireland
My Cars: 2009 Citroen C4GP

Re: Electrican help please? Citroen C4GP ABS wiring mare (fixed)

Post by pauljordanie »

Thanks Marc, Do you have a way of identifying my ABS Unit part number? Looks like I have to get it off to see those numbers. Car drives ok so don't want to take it off until I have a replacement to put on. Otherwise could be off road a couple of days sourcing right one. Thanks.
Online
User avatar
GiveMeABreak
Forum Admin Team
Posts: 36997
Joined: 15 Sep 2015, 19:38
Location: West Wales
My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow
x 5645

Re: Electrican help please? Citroen C4GP ABS wiring mare (fixed)

Post by GiveMeABreak »

No problem - 4541EY was the original the part number, which was replaced with 4541QE. So 4541QE is the one you need.

Now if you're sitting down...

From Citroen brand new these are £1,576.72 inc. VAT
There's one used on the bay here for about £400:

https://www.ebay.co.uk/p/Citroën-C4-Gra ... 1409556115
Please Don't PM Me For Technical Help

Marc
pauljordanie
Posts: 62
Joined: 14 Nov 2018, 13:39
Location: Ireland
My Cars: 2009 Citroen C4GP

Re: Electrican help please? Citroen C4GP ABS wiring mare (fixed)

Post by pauljordanie »

I found one 4541QE, 0265950962. Since the Citroen PN fits I wonder if this unit will work?
Online
User avatar
GiveMeABreak
Forum Admin Team
Posts: 36997
Joined: 15 Sep 2015, 19:38
Location: West Wales
My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow
x 5645

Re: Electrican help please? Citroen C4GP ABS wiring mare (fixed)

Post by GiveMeABreak »

4541QE is the Citroen part number. As long as the supplier is quoting this number it should be fine. I can't speak for the other number as that is not a Citroen part number.
Please Don't PM Me For Technical Help

Marc
Vlada33
Posts: 11
Joined: 15 Dec 2018, 12:47
Location: Serbia
My Cars: Citroen C4 Picasso

Re: Electrican help please? Citroen C4GP ABS wiring mare (fixed)

Post by Vlada33 »

I also need help with problem related to the ABS/ESP wiring.

In older Citroen Xsara Picasso a vehicle speed signal is taken from ABS, in newer C4 Picasso i need the same thing but I can't find it and don't want to test wire by wire because don't want to make a bigger problem.

Also, any location of wire that drives a vehicle speed signal is ok for me.

Vin number is VF7**************[VIN obfuscated, can be read by forum staff]
User avatar
NewcastleFalcon
Posts: 24562
Joined: 25 Feb 2009, 10:40
Location:
My Cars:
x 6866

Re: Electrican help please? Citroen C4GP ABS wiring mare (fixed)

Post by NewcastleFalcon »

GiveMeABreak wrote: 15 Nov 2018, 18:21 It indicates +12 V Power Supply for 7112A and 7112U - which goes to the ESP accelerometer gyroscope (7804)


Nice phrase....sounds well well out of my diy mechanic-ing "comfort zone" :-D

Regards Neil
Only One AA Box left
687 Trinity, Jersey
Vlada33
Posts: 11
Joined: 15 Dec 2018, 12:47
Location: Serbia
My Cars: Citroen C4 Picasso

Re: Electrican help please? Citroen C4GP ABS wiring mare (fixed)

Post by Vlada33 »

It seems to me that 12v is high for pulse signal,or maybe it isn't?

All I know is that signal has to be a pulse, maybe some information about pin number, color of wire, I saw numbers on wires, but I can't see all numbers because of isolation over wires...

Thanks a lot...
Post Reply