My tail lights are LED now, so with LEDs using a lower voltage, there is less load going through the tail light circuit, which in effect is causing the 'LIGHTS' dash warning to come on lol..

I am wanting to put a resistor in the line to prevent this, rather than taking the bulb out..

Anyone know the voltage I may need?.. Or do I need to somehow find out what the voltage across the whole array of LEDs is consuming?

 

Any help appreciated,

 

CheerZ!

Hi Andre, I will try and dig out a thread i saw which eliminates that problem. You dont want to add another resistor inline to the leds or you will make them dimmer, the load resistor will need to go across the live and ground to give it load, similar to the led indicator load resistors to make them flash at the correct speed

Ah, Cheers Graham :) - I presumed it just thought it was a lower consumption, and therefore its coming on because it thinks the lights are out.. so sticking a resistor in will drain some power and trick it.. but I await your instructions :D

Yes your are right to a point, the load of the leds is less than a filament bulb and therefore it will think a bulb has gone, because it is getting little or no resistence. A load resistor will trick it, but it will have to either be connected across the live and ground of the feed/s or at the source. Im searching now so will get back to you

 

Cheers

Graham

Here is a link to the load resistors, depending on where you put them will also depend on how many you need, you are supposed to have one on each bulb. Are they led bulbs you have fitted?

 

The easiest thing to do, is to find the wattage of each bulb and replicate the load with the correct load resistor, ie 10w, 25w. These should be available from Maplins or ebay, you are ideally after the ceramic type.

If you want to do pairs, ie there is one feed to the tail light, brake and indicators, you need to double the wattage of the load resistor and place it across the live and ground feed.

 

http://www.mobilecentre.co.uk/12-volt-ballast-load-resistor-for-led-side-and-tail-lights-p-291.html

Edited April 5, 201015 yr by groover

Hi Graham,?

Can i use these resistors for led indicators? If so, do i need 2 or 4 of them? (Only for the fronts)

 

Cheerz,

Al.

Hi Al

Normally one for each indicator, you can get 25w and 50w. 25watt will be more than enough per indicator. If you were going to do all the indicators, you can buy a new flasher relay, to replace the original under the dash, designed for use with led indicators

HTH

Graham

Cheers matey,

 

Al.