I have updated all bulbs with LED bulbs. I have upgraded to the EP27 relay and my rear brake/flashers work great but my front amber turn signals do not.

when the bulbs are installed and I turn on the signal it causes both front turns and both front side markers flash all at the same time. I DO NOT have the side marker turn signal mod.

any ideas on why this would be happening?

I have all SMD LED's except for my third brake light BTW.
here are the bulbs I have
http://www.ebay.ca/itm/2x-3157-3057-...#ht_3235wt_952

 

Normally current flows through the running lights circuit, but you don't see it because it's not enough current to make the filaments glow, and light up.

When I had this problem in my 2004 I put a bulb in parallel with the rest of the running light system so that it had something to light up instead of the LEDs. This has been working fine for a few years. It would be more elegant to do the same but with a large wattage resistor somewhere where heat will not be a problem.

 

Thanks JP. would you recommend putting one resistor per bulb or one in parallel with the entire circuit? and what size resistor would work? I am guessing one that would mimic the resistance of my stock bulb?

 

V-LEDs sells resistors, among other places. You get them based on how many turn signal bulbs you have replaced with LEDs.

Here: http://www.v-leds.com/BlinkerWarning...orLanding/true

 

He does not need them for his turn signal circuit. It is for his running lights circuit.

I used different size bulbs until I saw the one with the least current draw that would still not turn the diodes on.

 

Must have missed that as I just skimmed the original post, but will those resistors not still work?

 

It's overkill. He won't need to draw that much current.

 

JP7 can you recommend a bulb that will solve this problem? Do I have to find a running light bulb with enough resistance that it isn't lit up when my turn signals are on, correct?

 

I would try a 6 ohm resistor in parallel, if that works, try something higher. Keep going higher until it does not work anymore.

Keep in mind you need a resistor that will handle the power dissipation (yes it will get HOT)

 

The place I linked has 6 and 25 ohm resistors.

 

I'm thinking a 5 - 10 ohm resistor should be ok... but won't it need to be a rather large wattage (seeing as how most small led circuits we play with use 1/4w resistors), like maybe 5w?

It would be almost the same amount of work to install a bulb socket & a small t10 base bulb & hide it somewhere out of the way.

Just a thought.

 

Much more wattage, at 14V, a 6 ohm resistor dissipates 32.6w.

I would go close to 50w.

This is why you want to use as high a resistance as possible where you can go as high as you can and things don't act up. Higher resistance lowers the current draw, and power dissipation.

 

Ouch, that's gonna be one heck of a resistor.

 

I know, that's why its a good idea to experiment and really make sure you have the highest resistance you can where things still function correctly.