LED rocker switch for driving lights

Submitted: Saturday, Mar 27, 2004 at 10:30
ThreadID: 11594 Views:4027 Replies:3 FollowUps:4
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Hi All,

Have just put Hella Rallye FF1000's on my Navara and they work a treat. I use an LED rocker switc on the dash but the LED doesn't come on when the driving lights are on. Ican get the LED to come on but then the driving lights don't work.
I have 3 male connections on the back of the switch. Positive to one, neg to other but what do
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Reply By: Dave from Fraser Coast 4WD Club - Saturday, Mar 27, 2004 at 10:40

Saturday, Mar 27, 2004 at 10:40
You really want an answer don't you???

But 4 posts, wow.

There should be a pic od a globe on one of the posts.

If you connect this to switched positive it will cause the indicator light to come on with the spotties.

So in summary, common ground, and two switched positive, one for lights, the other for indicator lamp.
AnswerID: 52182

Follow Up By: TOB - Saturday, Mar 27, 2004 at 11:38

Saturday, Mar 27, 2004 at 11:38
don't know what happened there, pc went flash and 4 posts came up.
the swith is marked earth, load and supply and I have tried every combination. I am wondering if I need a seperate power source for the led as if I cross the power from the spotties nothing happens. As you can guess I am incompetent when it comes to electrical but I like to do things myself.

tob
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FollowupID: 314006

Reply By: Rosco - Bris. - Saturday, Mar 27, 2004 at 10:55

Saturday, Mar 27, 2004 at 10:55
Similar prob with an OE on/off switch I installed for the fridge relay.
Solution was to take extra pin to earth. Power in to LED from main source, power out to earth required to complete circuit.
AnswerID: 52184

Follow Up By: TOB - Saturday, Mar 27, 2004 at 11:42

Saturday, Mar 27, 2004 at 11:42
Rosco, I am not sure when you say power out to earth. Do you mean earth the power supply from my driving lights? whouldn't this short out?

TOB
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FollowupID: 314008

Follow Up By: Rosco - Bris. - Saturday, Mar 27, 2004 at 12:56

Saturday, Mar 27, 2004 at 12:56
Sorry Tob

What I meant is the power supply to the LED comes from the power going through the switch so you need to complete the LED circuit by taking this back to earth.

Imagine power in to one side of the switch and the other side of the switch being split into 2 circuits (both activated when the switch is closed). When you close the switch the main circuit is activated and power is also supplied to the LED, but the LED circuit needs to return to earth to complete that circuit.

Make sense??

Cheers
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FollowupID: 314010

Follow Up By: Rosco - Bris. - Saturday, Mar 27, 2004 at 13:01

Saturday, Mar 27, 2004 at 13:01
P.S.

Jumped the gun a bit and just read your followup, but it seems to confirm my suggestion.

Supply - from battery
Load - to light relay
Earth - to earth
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FollowupID: 314011

Reply By: Eric Experience. - Saturday, Mar 27, 2004 at 22:29

Saturday, Mar 27, 2004 at 22:29
TOB.
Rosco has answered you question but consider this, the amount of light that is pressent in the cabin of you vehicle determins the sensitivity of you eyes, the eye is more sensitive at the edges than in the centre so if you turn of every light in the cabin you will see better with you standard lights than you will with you driving lights on and a led shining into the edge of you eye. Eric.
AnswerID: 52229

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