4th Gen Wiring

Jamieg285 · June 03, 2008, 08:28:50 AM

I know at least a couple of you have wiring diagrams for the 4th gen, so hopefully you'll be able to answer these questions for me:

Dual fans - which is the primary/secondary - the blue or brown?

Interior mirror with map lights - there are 3 wires. One is obvously earth (black), one would be positive (which one?) but what is the other? (One is orange, one is white) The only thought I have is that they are independant positives, one for each light, but don't want to fry something it's its wrong.

Rob · June 03, 2008, 09:37:18 AM

Fans:

Primary Low Speed = Dark Green
Secondary High Speed = Dark Blue

Rear View Mirror:

Live feed = Orange
Ground = Black
Door/Courtesy switch = White

Jamieg285 · June 03, 2008, 09:41:20 AM

Thanks, glad I asked about the mirror. I never guessed about the door switches.

Rob · June 03, 2008, 09:45:11 AM

Quoting: Jamieg285

door switches

That has a diode between the mirror and the switches so courtesy light stays on for a while. If you are gonna use it then you need to splice in before that or the lights will stay on....I think

Jamieg285 · June 03, 2008, 10:32:30 AM

Mmm, looks like I may need to bench test it before fitting.

If I understand what you are saying, the diode would keep the lights on for a while after closing the door? If so, if the diodes aren't there I would expect the light to go straight out, as per the current interior light??

Any clever sparky's able to contribute?

art b · June 03, 2008, 11:00:04 AM

a diode wont allow a light to stay on,
if its a diode its to stop a current travelling one way,
would have a timer device for the courtsey light to stay on,

http://cgi.ebay.co.uk/Courtesy-light-delay-for-old-fords-feista-escort-etc_W0QQitemZ200228562762QQihZ010QQcategoryZ21654QQssPageNameZWDVWQQrdZ1QQcmdZViewItem\" target=\"_blank\" rel=\"nofollow\">http://cgi.ebay.co.uk/Courtesy-light-delay-for-old-fords-feista-escort-etc_W0QQitemZ200228562762QQihZ010QQcategoryZ21654QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Jamieg285 · June 03, 2008, 11:03:31 AM

So what's the diode for? Do I need it?
Or has Rob mis-interpreted it and it's a timer?

55starchief · June 03, 2008, 11:07:24 AM

The diodes are indstalled to stop spikes on alram systems usualy

Rob · June 03, 2008, 11:08:17 AM

Quoting: Jamieg285

So what's the diode for? Do I need it?
Or has Rob mis-interpreted it and it's a timer?

It says its an isolation diode

Jamieg285 · June 03, 2008, 11:34:47 AM

Quoting: Rob

It says its an isolation diode

Fair do's. That does sound like it could be something to do with an alarm system.