WHTrunner
New Member
- Joined
- Feb 9, 2015
- Messages
- 4
- Reaction score
- 0
- Points
- 1
- Location
- Abilene, TX
- Vehicle Year
- 1998
- Make / Model
- Ford
- Engine Size
- 2.5l
- Transmission
- Automatic
Hi, so I'm in the middle of an led upgrade on my truck. I haven't had any issues yesterday when I changed the brake lights out yesterday. Today, I got all the blinkers and their resistors installed. No issues there. I pull out the third brake light to swap out that brake bulb, and with the bulb off when pulling it, I insert the LED bulb and it comes on immediately. I'm thinking that's odd, but I had the bed lights on, along with the key (so I have some tunes) at the time, so I go and turn the bed lights off and all of the brake lights stay lit. So I figured the bulb wasthe issue, so I pull it back out, and the lights are still lit.
So here's my current symptoms. With the key off, brake lights only come on with the brake pedal being pressed. With the key on, brake lights and third brake light is on, but dim. With the lights on but key off, the red marker lights come on, and the brake lights come on with the pedal being pressed like normal. With the key on and the lights on, brake lights are fully illuminated, and they do not get any brighter when the brake pedal is pressed, however they do flicker as the switch engages and disengages. As I was cataloging my symptoms, I noticed a beeping coming from my dash, that is five beeps long. The abs light is not illuminated.
Now, I'm leaning towards this being an issue with the ignition wiring, but I'm not so sure because it happened when I changed that last bulb out, instead of when the ignition was turned.
Or could this be an issue with me installing LED modules?
Any help would be appreciated. I'm a decent mechanic and even know some stuff about wiring, but I cant wrap my head around how this could've happened. Thanks
Edit: I'm realizing this should be in the wiring section if there is one. Kinda frantic here. I put the old bulb back in and the issue went away. Looks like theres a voltage when the bulb is removed which goes away when an incandescent bulb is installed. The led bulb doesnt seem to make it go away. Is there some sort of diagnostic mumbo jumbo here that's getting confused by the LED bulbs?
So here's my current symptoms. With the key off, brake lights only come on with the brake pedal being pressed. With the key on, brake lights and third brake light is on, but dim. With the lights on but key off, the red marker lights come on, and the brake lights come on with the pedal being pressed like normal. With the key on and the lights on, brake lights are fully illuminated, and they do not get any brighter when the brake pedal is pressed, however they do flicker as the switch engages and disengages. As I was cataloging my symptoms, I noticed a beeping coming from my dash, that is five beeps long. The abs light is not illuminated.
Now, I'm leaning towards this being an issue with the ignition wiring, but I'm not so sure because it happened when I changed that last bulb out, instead of when the ignition was turned.
Or could this be an issue with me installing LED modules?
Any help would be appreciated. I'm a decent mechanic and even know some stuff about wiring, but I cant wrap my head around how this could've happened. Thanks
Edit: I'm realizing this should be in the wiring section if there is one. Kinda frantic here. I put the old bulb back in and the issue went away. Looks like theres a voltage when the bulb is removed which goes away when an incandescent bulb is installed. The led bulb doesnt seem to make it go away. Is there some sort of diagnostic mumbo jumbo here that's getting confused by the LED bulbs?
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