Turn signals flashing rapidly after installing new LEDs?

2006 CHEVROLET IMPALA
165,000 MILES • 3.9L • V6 • 2WD • AUTOMATIC
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CHEVYIMP
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I just put new LEDs in and the right and left turn signals blink and click rapidly, but the hazards run like normal. I know with LEDs the draw is less, and it can mess it up. I would rather not install individual resistors, but I can’t seem to find the location of the flasher relay. I would very much appreciate your help! Thank you!
Dec 27, 2024 at 4:17 PM
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STEVE W.
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  • 15,113 POSTS
There is no flasher relay on that car, the turn and hazard lights are both powered directly from the body control module. To use LEDs, you have to make the BCM think they are normal bulbs. That means either the better LED bulbs that are made to mimic a halogen or you add resistors. However, you need to be very careful to only add enough resistance that the BCM thinks they are the correct bulbs, if you add a higher amount, you risk burning out the internal driver chips in the BCM.
Dec 27, 2024 at 5:59 PM