2014 Taco Hyperflash

Howdy Folks,

A little help here. Just installed Morimoto LED's on all 4 turn signals with the resistors that Morimoto recommended and I have hyperflash. I did check and install the resistors on the wire that drives the flashing. What do I need to check.

 

How were they installed? I’ve always shaved back some jacket on the wires in question and tapped and taped. Both electrical and Tessa.

 

I used male / female connectors on all four to put the resistor inline on the turn signal wire.

 

I just finished doing the conversion on my 2009 like 30 minutes ago. You have to put a resistor on each bulb. I originally tried it with one spliced in on the rear light and I still had the hyper flash. I ended up soldering in all the resistors. If you do have 1 resistor wired to each bulb and you used the snap on (red) splices that came with the resistors you may have a bad connection. the wires going to the front DTRL/Turn Signals look pretty thin.

There is another post that explains why this happens. Short version is that the LED bulbs don't draw as much current as the regular bulbs which makes the car's system think a bulb is broken. The lights start hyper-flashing to alert the driver that a bulb is broken. Adding the resistor to each bulb causes them to draw enough power to make the car happy.

See my post for more details on wiring.

https://www.tacomaworld.com/threads/help-with-2009-turn-signal-dtrl-led-conversion.798663/

 

I just saw your last post. If all the lights are flashing you may want to check for connectivity between the lights and the resistors with a multimeter. Or maybe one of the resistors is bad. You should be able to check that as well with a multimeter.

 

I'll check the Connections, sounds like that may be the prob.

 

OK folks, here it is. I checked the continuity between all connectors with a multimeter, they all were good, check the functionality of the resistors and all showed the proper rated resistance. Checked the connectivity between one wire of the resistor and a contact point in the bulb housing, showed proper ohlm reading, and still hyperflashing. What next?

 

Question, is it necessary to put one resistor per bulb, which is what I have done, or will one resistor in the circuit satisfy the circuit and stop the hyperflashing.. A friend who has a 3rd gen Taco said he just put the led turn signal bulbs in with NO resistor and has had no issues. Really cornfused here!!!!!!!!

 

I had to put one on each bulb as mentioned above and in my thread linked above. The third gen probably has different wiring so he may have gotten away with just one resistor. I think the 2014 was the last of the 2nd gen so maybe something is different.

Also, if you have Daytime Running Lights/Turn Signals combined like I do the aftermarket relay for fixing hyperflash will not work.

You might want to consider getting some of the newer LED bulbs with the resistor built in and see if they fix the issue.

 

OK, the saga continues, Morimoto tech support says only one resistor per side is necessary, so I bypassed one on each side, still hyperflashed, then I bypassed all the resistors, still hyperflashed, then I replaced all the LED's with the standard bulbs, no hyperflash, so now I'm down to the possibility that you HAVE to replace the relay under the dash to use LED turn signal lights on the 2nd Gen Taco. I even went so far as to bypass 3 of the resistors, still hyperflashed. I'm at a total loss, what say y'all!!!!!

 

what color is the ground wire on the front turn signal bulb housing

 

I didn’t have to replace anything on my 2nd gen when I installed LEDs. How are you installing the resistor? In-line with one of the wires, or bridging between the two? Mine are bridged, and I’ve not had a problem. Have you considered one or more bad resistors. I’m using a cheap Amazon set that I got for $15CAD. Has to be something easier than your proposal.

 

ZMan,
Thanks for the reply. I checked all the resistors with a multimeter and all checked out with the rated resistance. I have connected one lead from the resistor to the hot wire and one to the ground. Have tried every configuration I can think of, one resistor only on each side, no resistors, and one resistor connected on the right front side only, which a local shop told me worked for them once. Nothing has worked. All connections have been checked with a multimeter. 2014 is the last year for Gen. 2 and I am wondering if there is something really different about this particular year.

 

It's starting to look like your 2014 is "Special". I think the white or white striped wires are the ground. If you look at the pics (2009 prerunner V6) of the front DTRL wiring in my earlier reply (link above) you will see one side has blue and white and the other has yellow and white. The back are the same wires on both sides so it's tougher to tell but I would bet the White with black stripe is the ground. But resistors don't have polarity so it shouldn't matter how you hook them up.

 

Are you checking resistance at the connection or the plug?

 

Good news,
Not being one to give up, I soldered all the connections, don't like t-taps, problem solved, have all 4 resistors hooked up and no hyperflash. However the light switch is a 3 position switch, the first turns on the front DRL's, now these don't work. The second positions adds the side marker lights, they work fine and the DRL's come on with the second position, the 3rd position turns on headlights just fine. There is no power to the DRL wire when the switch is turned to the first position, is there a fuse for this and if so, where might it be located.

 

I was checking resistance both ways, plugged in and the resistor by itself. All is good now.....except for the DRL not coming on until the switch is in the second position.

 

I don't think my DTRL comes on until the second switch but I don't remember if it was that way before the switch over