I have a 2014 Laramie want to replace bulb. bought a set of LED's on amazon. Reading about throwing codes. Anybody expeirence this on a 2014. I have projector headlights. Thanks. Also if I do throw a code if I change them back will the code have cleared?
It's less of which year model you have after the advent of "enhanced OBD2"... and more of the problems which arise in the CAN/BUS network of the many modules in your vehicle that become the bane of your life, so to speak.
CAN/BUS is an extremely fast communications format among the many modules in cars, industry, and other computer networks, The car systems use twisted pair wires on the CAN/BUS to greatly reduce interference from outside EMF's, but this is far from perfect.
Changing the basic systems of any electrical devices on the car makes possible, an errant signal running through said CAN/BUS system. I remember the first year of OBD2 when I was at GM. We frequently got vehicles in where the owners of these vehicles would add under chassis fluorescent lighting in interesting hues.
The VERY high energy transformers would emit EMF's that interfered with the operation of the vehicle. Sometimes to the point of the car having to be towed. Try explaining to a new owner of a 1996 Camaro with 2 thousand miles on the car that HIS or HER choice in accessories fubarred the car's computer interface network!
We also experienced these problems when folks would retrofit LED and/or HID headlight systems onto the vehicle.
I'm pretty confident that the aftermarket world has solved some of these anomalies, but, perhaps due to lack of DOT oversight, some toys are just nightmares.
Currently, in my diagnostic realm, I see errant secondary ignition sine waves across different systems on my oscilloscope, and the culprit is often a leaky coil, with NO apparent running issues or any DTC's. BUT there are often tell tale signs in MODE6. It makes diags fun, dontcha see?
My advice? Take lots of time researching the brand/ company who makes whatever toy you want to add to your car.
Consider leaving things stock. Hands down, I have seen more crap with LED conversions than any other mods... but I HAVE seen successful LED switchovers, to be fair.
As for my own vehicles and customers who need better night vision; I use the driving lights on the 2 of my cars equipped with them AND I install the Phillips extra bright bulbs in headlights. They are not cheap (about 55-70 dollars, US)
This has gotten pretty good results feedback and NONE of these conversions played "whack-a-mole" with the CAN/BUS/OBD2 systems.