Need to wire up my central locking on my 2WD saph, but it has 4x4 doors and the wiring is totally different to the 2WD loom that goes into the door. All i want to do is operate the central locking, it doesn't have an alarm etc....

 

the 2wd loom uses the same loom as the 4wd car

the only difference is that the 4wd door use the oppositte locking mechanism, so when you "lock" the doors on the 2wd car the loom will "lock" the other door

but on the 4wd doors when you "lock" them, the 2wd loom thinks they are "unlocked" and goes bonkers

you just have to switch the trigger wire over and job done

also, the 4wd locks are much better with cable operation than the 2 rod 2wd arrangement

 

Well none of the connectors match up properly, I seem to have 9 wires coming from the door (3 connectors with 2 wires each, and one round one with 3 wires), and 6 on the car loom (4 on one connector and 2 on a round connector). Only the round connector is the same on both sides but the door end has 3 wires on that bit and the car loom has 2 , plus the colours are different so nothing is an obvious match.

 

they also changed the plugs on the facelift cars, so you are a bit buggered if you don't have the centre pillar short loom to match with it

you should have a white 5 pin plug for the central locking though, they yellow 2 pin for the speakers, another 5 pin for the mirrors (but black plug this time) another single wire with a bullet connetor on it (can't remember what that's for though) and then there will be another 3 pin (or possibly 2 pin) for the alarm in the door itself, this will go through the door and the pillar on that wobbly rubber bit as a sub loom so you sould be able to get that sorted

it's been about 6 years since i did mine so you'll have to bear with me on this as my memory isn't that great

 

ok, i've remembered what i did

the motors themselves are the same, so just remove the 4x4 motor assembly from each door and replace with the old 2wd one

the wires will be the same and it's plug and play, bu the hardware will still work as well

you will have to split the casing on th lock sheild though, just a few pins that need prising out to swap over, peice of cake really

 

My memory is worse than bad so I can't complain! I have the mirrors connected and working, as well as the electric windows, and I know which wires are for the speakers, so that clears that up.
So that leaves the white round/square multiplug as well as a black multi plug with 2 wires on it, these MUST be for the locks somehow. I think from what your saying that i have to forget about the black plug and concentrate on the white one???? It seems to have 4 or 5 wires in it from memory. I know there is live, earth, a white wire and something else that go into this plug.

 

you need 4 wires for the central locking - an earth (brown), a live (red or red/brownish), and the 2 switching wires (one yellow, one white)

 

Ok i'll check that when i get a minute, the car side of the loom seems to be easy to figure out as i know those wires are on that white plug, but i know for a fact that i have 4 multiplugs coming out the lock and none of them have an obvious live/earth wire, guess i'll have to trial and error it a bit to see what happens.

 

the black 2 pin plug is for the display in the dash

and when i fitted my late doors to my 2wd i just swaped the motors over but had to swap the black plastic bit that pulls the cable from the later motors to the 2wd motors

 

the black door ajar sensors are the same, it's just the plugs that are different

also, thefront locking motors have 4 wires and the rears only have 3 to make it less confusing for oyu

 

Sorted this last night, just have to permanantly solder some wires and it's all fixed. Dug out my Haynes manual and had a good look at the wiring diagrams (forgot I had the manual and i didn't think it'd be much cop TBH) matched up the colours as they were different on each end it worked first time.
It appears that the two rear doors are wired in the same on 2wd and 4x4 as i just plugged the connectors in, on the fronts and however the stuff didn't match so I have to solder a couple of bits. on the boot i just guessed and got it right first time so I'm not complainiing about that.
Thanks for all your help guys, means i can move onto solving the next issue.