2004 denali rear taillight issues

[wolferine358]

Hello fellow members,here goes, I bought rear spyder (the name of taillight) led smoked taillights.both sides of reverse work. Both sides of turn signals work but with flashing fast (I guess it's called hyper flashing), both brake lights work, but only the right side park light works, not the left. Ive checked all that I could, even brought it to my mechanic and he said there's a short somewhere from my left side harness. Is there anything else I should check or am I missing something. I also want to fix the fast flashing turn signals, but my main concern is getting the left side on first

 

[Big Buttons]

Check all fuses.

 

[wolferine358]

I did, is there a certain one to look for? Btw where did my thread go, didn't I post it in the right section? If not I apologize

 

[SRTH8R]

There is a fuse for left and right under the hood.

 

[Big Buttons]

I did, is there a certain one to look for? Btw where did my thread go, didn't I post it in the right section? If not I apologize

I moved it to the audio and electronics section.

 

[wolferine358]

Under the hood i checked with a tester, what would it say(not trying to sound dumb here but your help is appreciated) . And if it is a fuse , I'll be thankful its just that

 

[SRTH8R]

RR PARK, LR PARK, and a STOP LP. I had a issue where I only had parking lights in back and a intermitin 3rd. Ended up being the rr park fuse. Has been good ever since.

 

[wolferine358]

RR PARK, LR PARK, and a STOP LP. I had a issue where I only had parking lights in back and a intermitin 3rd. Ended up being the rr park fuse. Has been good ever since.

Thanks for the heads up, in the morning like in 7 hours I'll get to it.i sure hope it's that. Thanks for your help , anything on the hyper flashing?

 

[SRTH8R]

Not sure on the hyper flash, unless you have LEDs in the front. Tails should be plug and play.

 

[clandr1]

Thanks for the heads up, in the morning like in 7 hours I'll get to it.i sure hope it's that. Thanks for your help , anything on the hyper flashing?

Pretty sure that replacing the rear lights with LEDs have lowered the resistance (since the LEDs don't draw as much juice) so the flasher thinks there isn't a load on the rear lamps because your bulbs are blown. You might need an inline resistor for the rear turn signals to make it flash with normal frequency.