hi guys

 

just decided to play once more with my car and found some interesting answers that i didnt expect

 

 

tested blue/brown wire from fan  relay switch to brown/ blue behind the a/c switch inside car no continuity

 

then tested green/brown wire from fan relay switch to green/ brown wire behind the a/c switch inside car no continuity

 

Then tested green/brown wire from fan relay switch with the blue /brown wire behind the a/c switch inside the car and get continuity

 

Then tested the blue/brown wire from the fan relay switch withe the green/brown wire behind the a/c switch in side the car and get continuity

 

What does this mean?

 

I expected continuity from the same coloured wires only, does this mean a crossed wire

Sounds suspiciously like someone had a moment's inattention when making your car's loom. Can't find a wiring diagram for that stuff though, to be sure.

do you think the mix up means that they put the wrong wire in the wrong connection?

 

as my a/c fan doesnt work nor my rad fan

 

i have checked and changed everything to the fan still no joy

I guess it's possible. You'd think there'd be some sort of test rig they'd plug looms into to check the connectivity though, before they got near the car? :think:

 

Edit: Can have a look on our car tomorrow evening if you like, see if I get the same, or different results. With luck Mr Baldwin will be along to help before then.  Does your radiator have one fan, or two?

great happy to wait

 

i have one fan only

 

lets hope

 

thanks

can i also ask a favour

 

could you let me know what pin number they go into both from the fan relay switch and a/c fan switch connector

 

thanks

can i also ask a favour

 

could you let me know what pin number they go into both from the fan relay switch and a/c fan switch connector

 

thanks

Sure. Is it easy to get to the wiring behind the aircon switch?

Ours has two fans, the smaller of which always comes on with the a/c I think. Not sure if that'll make for any relevant wiring differences. Probably only between fans and fan control unit.

You have to take out revelant screw underneath the a/c unit then carefully push one side in and twist this should give a partial view of leads it is awkward

 

 the other way is to take out all screws and stereo around a/c to get to it a bit of a pain

Afraid I didn't get near to looking at this today.

 

Thinking about it, if a green/brown wire seems to 'turn into' a blue/brown wire, it's not a case of one or other of them being in the wrong spot in a connector, it means there must be a (mis-)connection somewhere along the way. I seem to remember previous mention of a connection block somewhere in the scuttle/plenum under the windscreen wipers.  Logically, this must be where the error is, if we are correct in assuming that the continuity between different coloured wires is an error, I think?

I checked connection block under steering same coloured wires but no link to them from either a/c switches or fan relay switch?

 

I seem to be finding more loose ends as i go along

 

thanks for the tip above will try to find out how to undo the windscreen wipers and check for a connection block

 

finding one would make sense and my life a lot easier as all i see is spaghetti junction under steering wheel