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official switchback/led bulb hyperflash fix and sidemarker flash delete.



i guess so. if these work out i'm sure i won't want to change back anyways. the bulb people putting in is the 3157 switchback, correct?
 
Yup, 3157. Where you getting them from? If you want to see what they look like you can look at my ride thread.
 
When using the new Tridon flasher with the old case can I just use a hot glue gun?

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When using the new Tridon flasher with the old case can I just use a hot glue gun?
You use the OE case so you can mount the flasher in the stock location under the dash.

I guess you could hot glue it back under the dash. LOL
 
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I installed the ep28 flasher while waiting for my Leds to come in and everything was fine, installed the signals last night on the front only and still have hyperflash. Any suggestions?
 
99 gtp, if it helps any, when I turn the hazards on the blinking is normal speed. Could it be something to do with not having leds all around?
 
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idk how the relay works on the 99 or if there is one evern... but my 07 there isn't a flasher relay. I had to wire in resistors with my switchbacks.
 
I installed the ep28 flasher while waiting for my Leds to come in and everything was fine, installed the signals last night on the front only and still have hyperflash. Any suggestions?
99 gtp.....Could it be something to do with not having leds all around?
Very strange. When I did mine I had Spyder LED tails (which have built in load resistors) and LED fronts and all worked fine.
 


Hey guys, I am new to the forum and have just recently purchased an 06 Grand Prix Base. I have changed out the tail lights to LED's and am wanting to do the flasher relay mod but I cannot locate the flasher relay on my car. Can any of you tell me exactly where the relay is located on the 06 model?
 
Oh, controlled by the CPU? I just used the loads and they work fine but thought the relay would be a cleaner fix. Thanks for the reply though.
 
Can anybody confirm that our cars use the standard 3157 rather than the CK? I have never heard of the CK, so I'm guessing we have standard.

led-car-bulb-CK-wiring.jpg
 
I have been looking yet found no luck to how to do this to a 2004 grand prix.. I can't find the flasher and multiple websites say different things.. Its built in the hazard button, its not modifiable, its under the dash, someone halp!
 


I have been looking yet found no luck to how to do this to a 2004 grand prix.. I can't find the flasher and multiple websites say different things.. Its built in the hazard button, its not modifiable, its under the dash, someone halp!
This is for the 97-03 GP's. 04+ does the flashing through the BCM. Not sure if you can tweak it at all.
 
I know it's a late reply. I installed switchback style led bulbs into the turn signal of the foglamp assemblies on my 04 GP. I bought the bulbs off ebay along with 3157 wiring harnesses that have the resistors with them. Paid $13 for the pair for the harness. For some reason the bulbs didn't want to stay clicked into the harness sockets, had to grind the the ends of the bulb down and they stayed in. You can remove the headlamps and makes it easier to self tap some screws to keep the resistors away from anything that will melt. Everything works as normal. And fyi, the turn signal/running lamp isnt the ck style
 
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