Front left turn signal problems

[Gobinator98]

I changed all my exterior and interior bulbs to LEDs(except the headlights) and installed resistors for the turn signals quite a while ago. Up until recently everything has been working a-okay but last week I started receiving a code 25 on the dash indicating that the front left turn signal has failed. I checked both bulbs on the driver side, they work(even all the individual LEDs on the bulb work). I changed both resistors thinking they have gone bad, no luck. I even tried unhooking the battery for a bit and just plainly clearing the BCM but to no avail. Does anybody got any idea what is causing this?

 

[Gobinator98]

Can someone shed some insight into this? I really would like to figure it out.

 

[skurtov]

Can someone shed some insight into this? I really would like to figure it out.

You sure you wired everything correctly? The resistor needs to be bridged across the wires.

 

[Gobinator98]

You sure you wired everything correctly? The resistor needs to be bridged across the wires.

Yeah it was working just fine, I wired everything correctly. It just randomly started doing it a few weeks ago even though I've had LED turn signals for over a year with resistors installed. I thought it could have been a resistor that crapped out but it still hyper-flashed with the new resistor. All the individual leds on the bulb itself work, so I don't know why the computer senses a lower current draw.

 

[Stew]

Swap the left side bulbs/resistors with the right side and see if the problem changes sides too. If so then one of the bulbs or resistors is bad, swap them back one at a time until you find the bad item.

 

[Gobinator98]

Swap the left side bulbs/resistors with the right side and see if the problem changes sides too. If so then one of the bulbs or resistors is bad, swap them back one at a time until you find the bad item.

Unfortunately the problem does not flip sides when swapping the bulbs/resistors from the front left to the front right and vice versa. So what else should I look at? Is it a ground issue or something else?

 

[PickTeej]

Sorry if this sounds dumb, but did you check the rear left signal to ensure that was working.

Also how does the wiring and connectors look under the hood? Make sure everything is clean and has a good connection.

Sent from my SM-T580 using Tapatalk

 

[Gobinator98]

Sorry if this sounds dumb, but did you check the rear left signal to ensure that was working.

Also how does the wiring and connectors look under the hood? Make sure everything is clean and has a good connection.

Sent from my SM-T580 using Tapatalk

All the connections are solid for all four bulbs. Brand new resistors for the left side and even tried flipping the bulbs around and all the little, individual LEDs work on the bulbs themselves. I'm not sure what else to try. If you didn't see it in the original post, the car says a code 25 which means there is a front turn malfunction, not rear.

 

[PickTeej]

Yeah I saw the OP, often codes are generic and not always what they say they are. The front and rear turn signals are tied together, I'd recommended just doing the same checks you did to the front on the rear.

Best of luck!

Sent from my SM-G950U using Tapatalk

 

[Gobinator98]

Yeah I saw the OP, often codes are generic and not always what they say they are. The front and rear turn signals are tied together, I'd recommended just doing the same checks you did to the front on the rear.

Best of luck!

Sent from my SM-G950U using Tapatalk

I legit already tried everything you suggested as I stated before that I checked everything front and rear on the driver side since that is the only side that hyper-flashes. And no, that code is not generic because I removed the rear driver side bulb and the dash showed both a code 25 & 26 because the car detected that the rear one was also "out". I doubt it is either the bulbs or the resistors or the connections since I have checked all of them. Something else is causing this and I can not be the only one that this has happened to in these cars.

 

[sdrt]

Just facing the same issue, all lights work fine but the code 25 wont go away and it starts flashing rapidly to warn that it's "not working" recently changed the bulb to LED because it went bad. I tried putting it on the other side but didn't work so it was a bad bulb, but the car doesn't recognize the new one, any update on this or someone figure out a solution?