Blk04Snake

Instead of hacking up the OEM wiring why not just have the BCM flashed to as built data to a truck that has LED lighting? The 2 main purposes of going to LED is the instant on (safer) and less power draw. Putting resistors in is just moving the same old power draw from the incandescent bulbs moved to a different place.


At work we have Ram cab chassis trucks and just got a bulletin of a reflash that needs to be done if you have LED lights on your upfitted body. I'm sure it's a similar operation on the Ford. Possibly look at the fleet.ford.com site and see if there's any upfitting instructions if adding a utility body that has LED lighting.

V8-Coyote

You guys can also get "CAN BUS" led bulbs. These bulbs will not req any "resistors". A much cleaner and less intrusive Install. I replaced every single regular bulb in my '13 Passat TDI to CAN BUS LEDs with great result. No bulb out warning, no hyper flashing, no flickering.

l3rian

I agree blk04snake, adding resistors eliminates one of the major advantages of LEDs. I didn't know reprogramming the computer was an option. I was sort of hoping that since these trucks are available with LEDs it would have a way to detect which type are installed.

99Longhorn

Anyone have a link for the can bus bulbs?

Jetdriver480

I installed some with resisters and they still hyper-flashed. No idea why.... Frustrating.

V8-Coyote

You might need to change your flasher/hazzsrd relay to one that excepts LED lighting. superbrightleds.com have some LED relays.

Mr Hahn

iTrader: (1)

Wrong. For several years all F150 trucks have used BCM modules. The traditional relay system is gone.

This is also wrong. Glad they worked on your VW, they also worked on my BMW, but those are different cars with different systems. With CANBUS bulbs the F150 turn signals will hyper-flash once the headlights are turned on, if not all of the time, and they will probably also hyper-flash if you have the turn signals on for a while at a stop light. CANBUS bulbs have small resistive circuits, which are not the same as load resistors. They get hotter than normal LED bulbs which reduces their lifespan, and in our F150 application they're not really going to fix the hyper-flash problem. I tried them in my F150, not just in my other car.

I wish, but nobody on this forum and nobody at any dealership around me in the Salt Lake City area says this can be accomplished with programming.

Agreed, this is currently the best solution I know of for hyper-flashing LED bulbs.

Best guess without more info, either they aren't wired correctly or the connections aren't good enough. What resistors you bought, where you wired them, and what kind of connections you used would help take it further.

Personally, I'll worry about an LED conversion if I upgrade my headlight assembly.

V8-Coyote

Good to know thanks for clearing that up.

I've been using CANBUS in my VW and Audi with great result, thus I shared my experience. I'm very new to domestic manf, let alone a brand new truck lol.

Compared to my VW and Audi, the more I learn about my (15' Lariat 502a) Ford truck the more I think, in my opinion, is that this truck is more complicated where it doesn't need to be, and very basic or lacking technology in other, some observers areas where there should be.

Scott Kephart

I replaced my front turn signal's with 3157 switchbacks and I only get the hyperflash when my lights are on. I am debating whether or not I want to use load resistors or replace the flasher.
These are the switch backs I used
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Livnitup

The hyper flashing of your turns on the panel cluster can be easily fixed with FORScan...it's a simple change editing the BCM.