Help - Interior Mirror Wiring

gregdaisley · Jan 30, 2012

Hi all, I've just received my auto-dimming rear-view mirror...

There is no plug in the headlining for me to plug straight in and it to work

The connector from the cable that goes into the mirror has 4 wires, but what are they and what wire do I need to connect them to for it to work?

Some pics to help describe the problem:

Looking for a wiring diagram and advice.

Thanks, Greg.

TimSawf · Jan 30, 2012

This may help.

The wiring colours that are missing off the bottom are :

gr .... grey
li .... purple
ge .... yellow
or .... orange
rs .... pink

gregdaisley · Jan 30, 2012

Thanks Tim, the wires on my connector are green, white, grey, black. Do you know what ones to connect where?

TimSawf · Jan 30, 2012

Can't help on that. Those colours don't match the colours in the diagram.

bigbadjay · Jan 30, 2012

Just shove an exposed wire in the holes until you get power! Then hijack that mofo

How much did it end up costing greg?

gregdaisley · Jan 30, 2012

Exactly :-(

gregdaisley · Jan 30, 2012

bigbadjay said:
Just shove an exposed wire in the holes until you get power! Then hijack that mofo

Haha looks like that's what Im going to have to do!

I'll need an earth too won't I?

gregdaisley · Jan 30, 2012

Ooops, it was 2nd hand off ebay for £49 plus delivery, mint condition.

vroomtshh · Jan 30, 2012

Whats the mirror off?

If its an A3 (which I assume will be the same as a Leon, it needs +12v to pin 1 and -12v to pin 6

The pins should be numbered on the plastic connector.

The other wires are for auto lights

gregdaisley · Jan 30, 2012

vroomtshh said:
Whats the mirror off?

If its an A3 (which I assume will be the same as a Leon, it needs +12v to pin 1 and -12v to pin 6

The pins should be numbered on the plastic connector.

The other wires are for auto lights

Its from a 2008 Leon FR mate. When you say -12v, is that earth?

bigbadjay · Jan 30, 2012

Maybe open the mirror with credit card like on that led fitting guide you sent me the link to.
Then trace the wires to what part they go to if you get floaters earth them to a reliable point or try pair them off into one wire.
My experience comes from bodging PCs in collage and quick fixing machinery at work, so any follow up posts saying im wrong, i very well maybe!!!! Thats how i do things tho

hope its of some help mate

vroomtshh · Jan 30, 2012

gregdaisley said:
Its from a 2008 Leon FR mate. When you say -12v, is that earth?

Yes earth. I'd hazard a guess that it'll be the same as the A3

gregdaisley · Jan 30, 2012

Problem Solved

Got it working at last!

Bought 10m of 3A 0.2mm wire and some connectors from Maplin for less than £5.

After a lot of trial and error, I managed to work out which wire was + and which on was - on the plug coming from the mirror.

Black = Negative
White = Positive

So once that was discovered all I had to do was find a positive feed and an earth/return.

Positive Feed: Taken from the rear of the interior lighting dimmer switch, Greyish Purple wire, which means the mirror and LEDs only activate with sidelights/headlights. This obviously had to be routed up to the mirror, I went up the A pillar then across the top of the windscreen.

Earth: Taken from the loom that the main interior lights plug into, Brown wire.

Once routed it was a case of hooking up the wires permanently, I used 4x Scotchlocks which make it very quick and easy to do.

After that all that was left to do was to replace the A pillar trim and put the interior light back in.

I'll get some pics when it gets dark!

Hope this helps anyone in the future,

Greg.

bigbadjay · Jan 30, 2012

Yooo u did it! Nice work. really.

Just afew qs, how did you feed the wire from base of pillar to lights switch?
How did you take the lights switch out?
How did you secure your wire to back of the dimming switch wire (grey/white wire) (good find or what?

)

Trim removal is defintly not my strong point! I unclipd the wires without taking lights switch out through the panel underneath.

Lastly, i am now getting on ebay for one of these babys! Plus u can sell your old one n make your money back......

Top banana :1st:

gregdaisley · Jan 30, 2012

Thanks buddy!

Once you remove the pillar trim you can get access to the rear of the light switch so just feed it down and it'll pop out somewhere near there.

I used Scotchlocks, hard to describe, Google it

Its really easy to remove the light switch itself, push the switch in and turn towards the sidelight position, this unlocks the the switch, and at the same time pull it towards you.

I might get it on there depends whether I want to keep it as a spare or not?

Greg

Masterkm · Jan 30, 2012

Whats the advantages of this type mirror to the standard one? Sorry if its a dumb question lol

ddc · Jan 30, 2012

Nice work Greg, if you shine a small torch at the EC sensor next to the green led the mirror should dim even in daylight.. Wonder what the grey/green wires are for??

dave.richmond · Jan 30, 2012

What was the part number of the mirror?

bigbadjay · Jan 30, 2012

Part num! Just ordered 1 i hope its the same. 30 quid ill post info get searchin quick last 1!!! 3 2 1 GO

bigbadjay · Jan 30, 2012

5251stuartc seller sorry no link using ebay app

Help - Interior Mirror Wiring

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My Leon 'Alyssa'

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