c5 mk1 2004 2.0 hdi power sourcce

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steen2345uk
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c5 mk1 2004 2.0 hdi power sourcce

Post by steen2345uk »

got a c5 mk1 stripped down door looking for a 12 volt power source as fitting a unviersal keyless entrey can not find a plus and earth need the plus to be on all the time as system wont work any ideas

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GiveMeABreak
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Re: c5 mk1 2004 2.0 hdi power sourcce

Post by GiveMeABreak »

You'll probably need to take it directly from the battery as the doors are controlled via the BSI after codes are exchanged with the fob. How are you going to overcome the Alarm if fitted as that is also usually deactivated once the handshake is completed.

steen2345uk
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Re: c5 mk1 2004 2.0 hdi power sourcce

Post by steen2345uk »

alarm fitted but never worked at all so thats not a problem i put pics up soon and details were i can

steen2345uk
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Re: c5 mk1 2004 2.0 hdi power sourcce

Post by steen2345uk »

quick update got a problem on were to put wires to battery i can try behind glove box were the bonnet cable go thoughs but any other ideas will be helpfull ty

wheeler
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Re: c5 mk1 2004 2.0 hdi power sourcce

Post by wheeler »

If you remove & look behind the glovebox you will find what looks like 4 cut wires (white/red from memory), they are spare/repair wires pre routed through the bulkhead available for fitting accesories etc, the other ends of them are located underneath the under bonnet fusebox where you can extend them to the battery.
Poking wires through the big grommet above the BSI is not a good idea & doesent usually end well for the BSI.

steen2345uk
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Re: c5 mk1 2004 2.0 hdi power sourcce

Post by steen2345uk »

well looked behind glove box no wires so i going to get creative

wheeler
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Re: c5 mk1 2004 2.0 hdi power sourcce

Post by wheeler »

steen2345uk wrote:
30 Dec 2020, 17:03
well looked behind glove box no wires so i going to get creative
As far as i know all mk1 C5's have the repair wires. The BSI area behind the glovebox is a bit of a mess with wire & the can be difficult to spot. Lift out the under bonnet fusebox, The will be easier to spot at that end.

steen2345uk
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Re: c5 mk1 2004 2.0 hdi power sourcce

Post by steen2345uk »

ok thanks i give another look

steen2345uk
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Re: c5 mk1 2004 2.0 hdi power sourcce

Post by steen2345uk »

ok looked under fuse box found 2 very skinny wires and seems i got to take out fuse box to get them which looking at it i got to take the battery out and undo a bolt well i post photos before and after fingers cross

wheeler
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Re: c5 mk1 2004 2.0 hdi power sourcce

Post by wheeler »

There should be 4 wires not just 2 you unclip the fusebox out of the box it sits in. The only fixing you need to remove is the 13mm nut for the positive connection to allow you to separate the maxi fuse part. You dont need to remove the battery to do any of this but best to disconnect it.

steen2345uk
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Re: c5 mk1 2004 2.0 hdi power sourcce

Post by steen2345uk »

well found 4 white wires as saidtake a look at pics and there all white so thats gonna be fun lol
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Hell Razor5543
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Re: c5 mk1 2004 2.0 hdi power sourcce

Post by Hell Razor5543 »

There might be numbers codes printed on the wires, so that could be worth looking for.

wheeler
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Re: c5 mk1 2004 2.0 hdi power sourcce

Post by wheeler »

Thats the ones. Have you found the other ends inside yet?
Its not hard to work out which is which, either set your meter to ohms & check which ones have continuity. Or connect one to the battery (making sure the ones at the other end are not touching anything) and then check which one has 12v.

steen2345uk
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Re: c5 mk1 2004 2.0 hdi power sourcce

Post by steen2345uk »

update had a look at wiring yes its got numbers take look at photos so nearly there be more soon
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wheeler
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Re: c5 mk1 2004 2.0 hdi power sourcce

Post by wheeler »

Just match the codes up at the BSI end inside, I would still always confirm with a meter though.