fan relay and brake light

1. saxcrazy Newbie Joined: Feb 2010 Posts: 8

   #1 4th April 2010, 08:55

   hi people, ive got 2 questions here and hoping some1 can give me a pointer.
   
   what colour is the plug or wires going to the brake pedal switch on an early vts?
   
   also my fan is not working as theres no relay and not sure of correct 1/colour i need? there is a thick yellow wire coming from relay side on the centre of
   the plug and wondering what this does or where it should go, was thinking
   an earth?
   
   
   
   
   
   
   any help appreciated
2. grumpypants Regular Poster Joined: Jun 2009 Llantwit Major, Vale of Glamorgan Posts: 429 Vauxhall Corsa 1.0

   #2 4th April 2010, 20:35

   The wire colours that go into the brake switch are Grey (main power feed) and Red (function).
   I take it you are referring to your radiator fan, as opposed to the heater blower fan. Generally speaking any Yellow wire concerned with fans are associated with an Earth. Hope that is of some help to you.
3. saxcrazy Newbie Joined: Feb 2010 Posts: 8

   #3 4th April 2010, 23:43

   yeah was the rad fan i ment, are the grey and red wires for the brake switch
   going to a brown or a black plug, or is it the same style as the handbrake switch plug? the yellow wire on the relay plug is coming from the center pin of relay, you think this is an earth then?
   
   soz if a bit hard to understand im trying to describe best as i can.
   
   thanks.
   andrew.
4. grumpypants Regular Poster Joined: Jun 2009 Llantwit Major, Vale of Glamorgan Posts: 429 Vauxhall Corsa 1.0

   #4 5th April 2010, 08:34

   The brake switch is directly above the brake pedal, it does not matter what colour the plug is, it can come in a variety of colours, the most important thing is the wiring colours (unless someone has changed the wires colours). The style of the switch is similar to that of the handbrake, except that it is fitted into the body of the car with a nut in a linear fashion and works on the same principal as a 'break to make' switch, wheras the handbrake switch fits on a sideways fashion.
   Use a multi-meter to test the yellow wire to see if it is an earth or power carrying wire.
5. grumpypants Regular Poster Joined: Jun 2009 Llantwit Major, Vale of Glamorgan Posts: 429 Vauxhall Corsa 1.0

   #5 5th April 2010, 09:50

   Another thought, what Number connection is the yellow wire coming from on the relay?? The number is located next to the connection on the relay.
6. saxcrazy Newbie Joined: Feb 2010 Posts: 8

   #6 5th April 2010, 23:39

   hi i do not have the relay as such yet so not sure of the no..
   i have correct pedal and handbrake switch for car so is there ment to be 2 wires running
   to each switch? and you mention checking wether live or earth at either of the plugs which should there be?
   
   thanks
   andrew
7. grumpypants Regular Poster Joined: Jun 2009 Llantwit Major, Vale of Glamorgan Posts: 429 Vauxhall Corsa 1.0

   #7 6th April 2010, 17:24

   Yes, two wires to each switch. For the handbrake switch the wires are Green/Yellow for the earth and Mauve for the powe. For the brake light switch Grey for the permanent live and Red for supply to lights.