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electrical circuit board in fuse box

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electrical circuit board in fuse box

Postby Mike85 » Fri Feb 23, 2018 2:03 pm

Hi Folks

bought a mk6 2.4 couple of weeks ago and only getting round to sorting a few things on it now, reverse lights had quit working on it so decided to check fuses under the bonnet and found this wrapped in electrical tape in the fuse box, anyone any idea what it is? looks like it takes a feed from a fuse terminal and another wire soldered onto a black wire with a red trace on the main loom.

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Re: electrical circuit board in fuse box

Postby Frag » Fri Feb 23, 2018 2:56 pm

Looks like an intelligent split charge relay..
Have you got a towbar with twin electrics,or a aux battery elsewhere on the van.?
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Re: electrical circuit board in fuse box

Postby Mike85 » Fri Feb 23, 2018 7:23 pm

No fancy towing electrics or second battery on this one, bit more of a look and it seems to be wired into the abs pump
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Re: electrical circuit board in fuse box

Postby knobby1 » Fri Feb 23, 2018 10:26 pm

Mike85 wrote:No fancy towing electrics or second battery on this one, bit more of a look and it seems to be wired into the abs pump


Aftermarket "hill assist" maybe..??

Lord Knobrot
2008 2.4L RWD 170+PS 6-speed 350 LWB High Roof.

When I die, I want to go peacefully in my sleep like my Grandfather, not screaming like the passengers in his car..!
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Re: electrical circuit board in fuse box

Postby Altransit » Fri Feb 23, 2018 10:30 pm

:idea: Maybe locks the brakes on if it's triggered? Part of an alarm system :?:
1997 Mk5 SWB 115 Minibus 70ps Di (Gone, but not forgotten!)
2004 Mk6 SWB T280 Medium Roof 85PS 2.0 TDDi - Vantunered (Also gone)
2008 Mk7 SWB T280 Medium Roof 85PS 2.2 TDCi - Also Vantunered
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Re: electrical circuit board in fuse box

Postby loot » Fri Feb 23, 2018 10:46 pm

It's a comparator circuit :-)

It will switch at a voltage that you set it to hence the blue box with screw, that it the pot for it.

So it could switch when the engine is on charge from running, maybe for charging tools but only when the engine is running eg.
Or it's a latching relay :lol:
That's what I think anyway :D

Bloody Maplins.
https://m.ebay.co.uk/itm/12V-Auto-Circu ... Sw8-xZwis~
65 290 2.2 125ps custom with 2 side doors 8)
07 350 170ps
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Ids v86 licence + v86.04 update + xprog here
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Re: electrical circuit board in fuse box

Postby motorman116 » Sat Feb 24, 2018 7:29 am

loot wrote:It's a comparator circuit :-)

It will switch at a voltage that you set it to hence the blue box with screw, that it the pot for it.

So it could switch when the engine is on charge from running, maybe for charging tools but only when the engine is running eg.
Or it's a latching relay :lol:
That's what I think anyway :D

Bloody Maplins.
https://m.ebay.co.uk/itm/12V-Auto-Circu ... Sw8-xZwis~


:shock: The abs doesn't work and its, to turn on / off the ABS light for Mot purpose :?:
2008 3.2 5 pot diesel Ford Transit GLX Lwb, Hr
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Re: electrical circuit board in fuse box

Postby ned » Sat Feb 24, 2018 8:09 am

This van in question its not ex AA/RAC is it. N
03 transit 125t280 2.0 tdci swb executive college blue 92 crewcab. Built in Belgium so deserves lots of love. 214,000 miles on the clock.

Instructions for use. fill with fuel. start engine. drive like a t#@t.
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Re: electrical circuit board in fuse box

Postby loot » Sat Feb 24, 2018 9:07 am

motorman116 wrote:
loot wrote:It's a comparator circuit :-)

It will switch at a voltage that you set it to hence the blue box with screw, that it the pot for it.

So it could switch when the engine is on charge from running, maybe for charging tools but only when the engine is running eg.
Or it's a latching relay :lol:
That's what I think anyway :D

Bloody Maplins.
https://m.ebay.co.uk/itm/12V-Auto-Circu ... Sw8-xZwis~


:shock: The abs doesn't work and its, to turn on / off the ABS light for Mot purpose :?:

Sounds right so ignition on abs stays lit, engine runs and abs light goes out.

So it'll be a comparator then? :-)

Unless the abs light comes on and goes out before the engine runs in which case it's a timer relay but an old setup. :?
65 290 2.2 125ps custom with 2 side doors 8)
07 350 170ps
Image
Ids v86 licence + v86.04 update + xprog here
Ids map here
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