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Showing results for tags 'flashers'.
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Hello everyone. I purchased a complete set of LED bulbs to replace all the stock bulbs for my 2012 GMC Sierra 2500 HD. In addition, I upgraded the tail lights and the head light assemblies as well to house these new bulbs. I'm very happy with the complete change-over except for the hyper flash issue I'm having with the new LED turn signals. Originally, I thought I could just replace the original flasher for an LED flasher that doesn't monitor the load on the circuit and therefore operates normally with the light-loaded LED upgrade. Turns out that the 2012 doesn't have a flasher and it's the BCM that controls the turn signal lights. From what I've researched, it appears that the BCM can be programmed to allow the use of LED's by changing the configuration of the BCM to a "cab/chassis" setup where the vehicle would accept the LED tail lights. I'm guessing that with changing everything including front turn signal bulbs to LED, the BCM reprogram to "cab/chassis" will not fix my issue because I've changed the front turn signals to LED as well. The other option I've researched is installing load resistors for every LED bulb. That seems a bit outrageous and hacking into the original wiring harness is not what I'd prefer as it makes it more susceptible to malfunction, corrosion, etc. not to mention the heat these resistors tend to give off, if installed improperly, can begin causing a whole other bundle of issues. So my question is, will the BCM reprogram resolve the hyper flash issue? Depending where you are but most dealers will charge $120 - $200 for the 3 minutes it takes to plug in but if it fixes the issue, I'd rather go that route instead of hacking my wiring harness. Thanks in advance for any help! -
No Power At Fuse Box for Trailer Lights
jkrosky posted a topic in 2015-2019 Silverado HD & Sierra HD
I have a 2017 Chevy Silverado 3500 HD High Country with 6.6 diesel equipped with tow package. It has dedicated trailer brake and trailer fuses within the primary fuse box under the hood. My passenger side trailer blinkers and brake lights are not working. I've traced the lack of 12v power all the way up to the 10a fuse dedicated to the right side trailer brake/signal light (fuse #17). I have replaced the fuse, re-tested, and still no power. The left side trailer brake/signal light (fuse #14) has 12v power going to it, tested on the top of the fuse when the flashers are on, but the right side has nothing. I've also swapped and then replaced the trailer parking lights relay switch (relay #63) and still nothing. Is this most likely an issue with fuse box or something else supplying power or ground to the fuse box? Thanks for the help... this is the craziest thing.