Headlights

[Steven Vanzessen]

I just replaced the stock halogen lights in my truck with leds, after doing this, my left turn signal went out, wondering if it is just a loose connection or a fuse? Or if it’s a common issue.
Thanks

 

[ThunderMug95]

1. Did you just replace the bulbs?
2. Did you add the CANBUS resistors/ modules?
Our trucks you cant just switch out the bulbs for LED w/o more work. W/o the canbus modules, you will get error messages, flickering and electrical gremlins with your lights.
Assuming you have quad lights or are they duals or aftermarket housings?
Also, many of the LED bulbs scatter light horribly because of their design and the design of halogen reflectors...Did you check for this against a wall in the dark? You may find that while that light coming out looks cool, you may have lost downrange light (scattered) and are now blinding on coming traffic...
These are real pitfalls with going to LED bulbs alone.