Cheap bastards idiot guide for fixing fast blinkers after LED swap
Mar 9, 2006 | 04:27 AM
#1
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From: BAOK
Cheap bastards idiot guide for fixing fast blinkers after LED swap
My wheelin partner installed some LED's and didn't like the fast blinking or the resistor fix so......this is what he did. Thought I'd share with yaul.
The relay that needs to be modified is well hidden. You will have to take down the lower part of the dash and remove the two bolts n the picture below:
Once you have those removed you can wiggle the box down. The arrow points to where the relay should be, the relay had already been taken it out when the picture was taken.
Here is what the unit looks like:
He is lazy and rather than scraping the solder off that terminal he just drilled out the red spot in the pic below. This is the "Lamp Failure Detection" pin according to this link, page 3. http://www.atmel.com/dyn/resources/...nts/doc4727.pdf
After you drill it out, just put everything back together and you’re done.
FWIW: the truck this was done on is a 1999 TRD model, and the label on the top of the chip is U643B.
Hopes this helps. Easy mod and only took about 10mins once he found the relay.
If you have ?'s you can mail him direct at sloth@r65.org
The relay that needs to be modified is well hidden. You will have to take down the lower part of the dash and remove the two bolts n the picture below:
Once you have those removed you can wiggle the box down. The arrow points to where the relay should be, the relay had already been taken it out when the picture was taken.
Here is what the unit looks like:
He is lazy and rather than scraping the solder off that terminal he just drilled out the red spot in the pic below. This is the "Lamp Failure Detection" pin according to this link, page 3. http://www.atmel.com/dyn/resources/...nts/doc4727.pdf
After you drill it out, just put everything back together and you’re done.
FWIW: the truck this was done on is a 1999 TRD model, and the label on the top of the chip is U643B.
Hopes this helps. Easy mod and only took about 10mins once he found the relay.
If you have ?'s you can mail him direct at sloth@r65.org
Mar 13, 2006 | 12:56 PM
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For those with 4Runners, you probably have the Denso flasher, this will need to be replaced with the Tridon unit part # EP-35 sold in most automotive outlets. I got one at Pepboys for $8.95, did the modification and it works great! Here's another write-up I found
Mar 15, 2006 | 05:33 PM
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I installed the LED's in the rear and for those who are afraid tht they aren't bright enough in the daylight, they are. what's really cool is the back-up light now produces a true white light and not the yellowish glow the stock bulb puts out. I still need to install them in the front, but that's gonna take a bit more work since I'll be replacing the entire turn signal assy.
Mar 16, 2006 | 06:55 PM
#7
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From: BAOK
Originally Posted by BruceTS
For those with 4Runners, you probably have the Denso flasher, this will need to be replaced with the Tridon unit part # EP-35 sold in most automotive outlets. I got one at Pepboys for $8.95, did the modification and it works great! Here's another write-up I found
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Mar 16, 2006 | 06:59 PM
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From: BAOK
Originally Posted by MTL_4runner
Good work on solving that one!
You can also just use an exacto knife to cut the circuit board trace.
You can also just use an exacto knife to cut the circuit board trace.
Mar 17, 2006 | 06:34 AM
#10
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From: BAOK
Originally Posted by BruceTS
Taco's are assembled in the USA and 4Runner are assembled in Japan, hence the difference in parts......
Thanks
Mar 17, 2006 | 03:35 PM
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Originally Posted by SloPoke
So, is the Runners flasher is not take apartable? Should have the same failure check circuit shouldn't it? or are there no circuit maps available for the Japaneses blinker boxes?
Thanks
Thanks
The next modification I plan to do to the Tridon flasher unit, is install a variable resistor to control the rate which it flashes, it goes a bit too fast for what I need it to do.
Mar 19, 2006 | 05:15 PM
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Ok, I played around with the flasher unit today and finally got the rate set exactly where I need it, for my new front sequential LED turn signals to operate properly. Next step is to modify the front bumper to install them and add in fog lights as well.
Jun 20, 2006 | 04:56 PM
#19
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From: Seattleish, WA
Originally Posted by runnerSR5
Is there a tech write up for LED turn signals on 4runners?
Or, head here and buy a replacement module:
http://autolumination.com/equalizers.htm
Or, in the 5th message of this thread, BruceTS points to another writeup of the mod.
Last edited by midiwall; Jun 20, 2006 at 04:57 PM.
Jun 20, 2006 | 09:06 PM
#20
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Originally Posted by jbd202
Hey brucets what type of LED bulbs are you running and where did you get them. I am looking at getting some but I don't want to waste my money on something that is no good.
Quantity: 2
Product: 7440-15 LED bulb $ 6.99 (each)
Options: Amber
back-up
Quantity: 2
Product: 7440-15 LED bulb $ 6.99 (each)
Options: White +$2.00
brake
Quantity: 2
Product: 7443-15 LED bulb $ 6.99 (each)
Options: Red
front markers (194 type)
Quantity: 2
Product: WLED 5-LED Wide Angle LED bulb $ 2.99 (each)
Options: Amber
license plate(194 type)
Quantity: 1
Product: WLED 6-LED bulb $ 2.79 (each)
Options: White +$0.95
not sure what stock front turn signals are since I didn't need them, but this is where I purchased them from... http://www.superbrightleds.com
if you do a search on this board there are many threads about this subject....
Originally Posted by runnerSR5
Is there a tech write up for LED turn signals on 4runners?
Last edited by BruceTS; Jun 20, 2006 at 09:11 PM.
