Thread: Relay Questions

It is fairly common to take the switching 12 volts from high beam and run a single wire inside through the switch to earth. This means if you drop high beam or turn the switch off, your driving lights go out. 11 odd volts should still switch a small relay

HTH

this one?

5 PIN NORMALLY OPEN MINI RELAYS

STOCK CODE DESCRIPTION TYPE PROTECTION LAYOUT WIRING DIAGRAM
6600B P1512R 12V, 40A Resistor A 1 FORM A
(2 x #87)
6600AB P1512RO As Above: Plain relay housing / No mounting bracket
6615B P1512X 12V, 40A Diac A 1 FORM A
(2 x #87)
6621B P1512X (With
Moulded Bracket) 12V, 40A Diac A 1 FORM A

Pro Quip*Relays
(2 x #87)


Try applying power to the relay and see if you get an output to the driving lights if not there could be a fuse in the wiring there should be, it may be blown. As pop says most setups have the switching power taken from the high beam wire through the relay and then to earth the fuse would be in line from the battery

should be something like this

terminal 30 feed from battery
terminal 87(x2) one to each spotlight
terminal 86 from high beam or you dash switch
terminal 85 to earth

terminals 86 and 85 may be other way around depending on the installer

Originally Posted by THE BOOGER

this one?

5 PIN NORMALLY OPEN MINI RELAYS

STOCK CODE DESCRIPTION TYPE PROTECTION LAYOUT WIRING DIAGRAM
6600B P1512R 12V, 40A Resistor A 1 FORM A
(2 x #87)
6600AB P1512RO As Above: Plain relay housing / No mounting bracket
6615B P1512X 12V, 40A Diac A 1 FORM A
(2 x #87)
6621B P1512X (With
Moulded Bracket) 12V, 40A Diac A 1 FORM A

Pro Quip*Relays
(2 x #87)


Try applying power to the relay and see if you get an output to the driving lights if not there could be a fuse in the wiring there should be, it may be blown. As pop says most setups have the switching power taken from the high beam wire through the relay and then to earth the fuse would be in line from the battery

should be something like this

terminal 30 feed from battery
terminal 87(x2) one to each spotlight
terminal 86 from high beam
terminal 85 to your dash switch
terminals 86 and 85 may be other way around depending on the installer

if earth is being made at the dash switch you will need to wire up as per the red text

here is an image to help

Thanks for your help.

I've gone through all the wiring and found that most of the connections are extremely poor or corroded badly. I want to basically re-do the wiring properly with no crappy "just twist it and she'll be right" attitude..

I was looking for the high-temp automotive electrical cables that I felt would be required for the under bonnet wiring.. seems difficult for me to find (at least at Jaycar).. Do do the job properly can anyone recommend what I need to buy in terms of wire category, what connectors are recommended and what types of solder etc.. I'm an electrical newbie so It's all part of my master plan to learn new stuff..

I run 4mm sq from the battery to the relay and then the same sized wire to the spot lights. "Standard" three mm wire from the high beam to the switch and then on to activate the relay. No problems with heating. All fitings are soldered. [If that makes sense.]

Tony