LTZ led taillights problem

[2017_whitez71]

So I swapped my lt taillights for ltz taillights over a year ago. I used a harness from gen5diy.  Everything was working great until today.  I got a lamp out warning for left taillight.  Ohmed resistor had 2.089k ohms, obviously resistor is bad.  Went to autozone and got sylvania 6 ohm resistors and swapped out resistor.  Still have hyper flash.  Thinking I had got wrong resistor I swapped the resistor for one from my front ltz headlight that I got from @pgamboa still have hyper flash.  The lights in the taillight still light up and flash.  My question is do I have a bad taillight or am I using the wrong resistor?  Here is a pic of resistors I got. Any help would be appreciated. Also I put my stock LT taillights back on and everything works right.

[DEV1ST8R]

I’ve been using Vled resistors with no problems. Maybe give them a shot... They are much more robust and barely even heat up.

[pgamboa]

You need (2) - 6 Ohm or (1) - 3 Ohm for the tail lights (because you have 2 bulbs).

If you took the headlight resistor, that’s a 6 ohm and why it didn’t work.

So I swapped my lt taillights for ltz taillights over a year ago. I used a harness from gen5diy.  Everything was working great until today.  I got a lamp out warning for left taillight.  Ohmed resistor had 2.089k ohms, obviously resistor is bad.  Went to autozone and got sylvania 6 ohm resistors and swapped out resistor.  Still have hyper flash.  Thinking I had got wrong resistor I swapped the resistor for one from my front ltz headlight that I got from [mention=159655]pgamboa[/mention] still have hyper flash.  The lights in the taillight still light up and flash.  My question is do I have a bad taillight or am I using the wrong resistor?  Here is a pic of resistors I got. Any help would be appreciated. Also I put my stock LT taillights back on and everything works right.

Sent from my iPhone using Tapatalk

[str8304]

I had same issue and got my harness from same group.  You need 2 of those connected to fix issue.. Might as well get 2 extra for the other side as mine went bad a month after i fixed the side that was bad.

[2017_whitez71]

6 hours ago, pgamboa said:

You need (2) - 6 Ohm or (1) - 3 Ohm for the tail lights (because you have 2 bulbs).

If you took the headlight resistor, that’s a 6 ohm and why it didn’t work.
 

 

 

 

Sent from my iPhone using Tapatalk

 

 

 

Where do you get your resistors at?

[zeke1883]

What is difference with ltz taillights vs LT taillights?  Is it LED vs bulbs? 

[2017_whitez71]

3 hours ago, zeke1883 said:

What is difference with ltz taillights vs LT taillights?  Is it LED vs bulbs? 

LTZ taillights are led, LT halogen bulbs

[pgamboa]

Where do you get your resistors at?

Amazon. 6-ohm 100 watt ones... but... they will not have a short lead soldered on...


Sent from my iPhone using Tapatalk

[RACERX7775]

I had the same problem a week after i bought my harness from gen5. He sent me 4 resistors. It uses 2 per side to SHARE the load. Mine dont even get hot anymore. I also made an aluminum mount bracket for them.

[2017_whitez71]

32 minutes ago, pgamboa said:

Amazon. 6-ohm 100 watt ones... but... they will not have a short lead soldered on...


Sent from my iPhone using Tapatalk

Ok so I will need 2 of them per side? 

[2017_whitez71]

40 minutes ago, pgamboa said:

Amazon. 6-ohm 100 watt ones... but... they will not have a short lead soldered on...


Sent from my iPhone using Tapatalk

Also do you wire them in series or parallel?

[RACERX7775]

Paralell. Yes. So power coming in goes to both at the same time. Not through one, then to the other.

[RACERX7775]

Not the best but....

[dannonvoight]

Hey guys, Brand new to the forum tonight. I have been dealing with this "Hyperflash"  issue since June. I swapped my tailights out in January when I wrecked my 2015 LTZ and it was pre LED taillights so I bought the GM taillights and the bodyshop got a harness for them. I had the resistors for them to make them work and they worked for a few months and stopped in June.  I even changed out the resistors but still had the flash.

 

I was told I needed to have the BCM's  flashed, Is that correct? Or do I just need to double up the resistors ?

 

Any help is greatly appreciated, its been driving me insane!

[2017_whitez71]

You don't need the BCM flashed, no dealer would do that anyways.  As far a resistors go, you need one 3 ohm per side, or two 6 ohm per side.  

7 hours ago, dannonvoight said:

Hey guys, Brand new to the forum tonight. I have been dealing with this "Hyperflash"  issue since June. I swapped my tailights out in January when I wrecked my 2015 LTZ and it was pre LED taillights so I bought the GM taillights and the bodyshop got a harness for them. I had the resistors for them to make them work and they worked for a few months and stopped in June.  I even changed out the resistors but still had the flash.

 

I was told I needed to have the BCM's  flashed, Is that correct? Or do I just need to double up the resistors ?

 

Any help is greatly appreciated, its been driving me insane!