2010 citroen c4 grand picasso towbar

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Cam1972
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2010 citroen c4 grand picasso towbar

Post by Cam1972 »

I am looking to fit a towbar to my c4 grand picasso 2010 plate but can't find wiring diagrams with wire color codes for the rear light clusters so don't know what wires should be connected to the wires for the trailer plug.
Does any one have the diagrams for this please
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Re: 2010 citroen c4 grand picasso towbar

Post by GiveMeABreak »

We'll need your VIN first.
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Cam1972
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Re: 2010 citroen c4 grand picasso towbar

Post by Cam1972 »

GiveMeABreak wrote: 04 Jul 2020, 10:08 We'll need your VIN first.
VF7**************[VIN obfuscated, can be read by forum staff]
Cam1972
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Re: 2010 citroen c4 grand picasso towbar

Post by Cam1972 »

V F 7*****************
Last edited by xantia_v6 on 04 Jul 2020, 19:57, edited 1 time in total.
Reason: VIN masked
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GiveMeABreak
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Re: 2010 citroen c4 grand picasso towbar

Post by GiveMeABreak »

Focus on the Pin assignments, not the wire colours as these can change.

Rear Light Cluster on the body:
Note the Common Earth is on Pin 3:

Brake:
Pin 2 Live

Reversing:
Pin 1 Live

Rear Tail / Side Light:
Pin 5

Indicators:
Pin 4

Fog Lamps These I believe are in the bumper area and these are on Pin 1 and the Earth on Pin 2.
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Cam1972
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Re: 2010 citroen c4 grand picasso towbar

Post by Cam1972 »

GiveMeABreak wrote: 04 Jul 2020, 21:42 Focus on the Pin assignments, not the wire colours as these can change.

Rear Light Cluster on the body:
Note the Common Earth is on Pin 3:

Brake:
Pin 2 Live

Reversing:
Pin 1 Live

Rear Tail / Side Light:
Pin 5

Indicators:
Pin 4

Fog Lamps These I believe are in the bumper area and these are on Pin 1 and the Earth on Pin 2.
What are the wire colors because I can't find reference to them anywhere.
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C5 MK II 2.0 HDi Exclusive Obsidian Black
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XM 2.0 Turbo Prestige Emerald Green Pearlescent
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Re: 2010 citroen c4 grand picasso towbar

Post by GiveMeABreak »

The pin numbers are marked on the black wiring plugs if you look carefully. As I said - the colours of the wires are often changed on PSA cars, so may not correspond. Always use the pin number as that is 100% accurate.

Look here for the numbers:
plug pin.PNG
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Re: 2010 citroen c4 grand picasso towbar

Post by bidreject »

sorry for reviving an old thread. does this apply to Citroen c4 grand Picasso year 2007 as well?

so, i can just follow this guide to install a towbar or a reverse camera right using the pin numbers?

im new btw, do i need to intro myself anywhere.
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Re: 2010 citroen c4 grand picasso towbar

Post by Clemesha »

Thank very very much. I had been look and look at wiring diagrams. and in some cases there were multiple wires going through a connection pin the same colour. Your pin number System has solve the problem.
Just as an extra,
I want to put in daylight running lights and an indicator repeater at the front. Therefore one would just look for the plug pin numbers assuming pin number 4 again would be the indicator at the front of the car.
Best Wishes
Clemesha
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