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Discussion Starter · #1 · (Edited)
Inner and OUTer passenger side taillight is OUT . Is this usually a light fault or fuse/relay? I have been through TONS of fuse box diagrams, which fuse/relay and where should I look to replace?? Or is this a full replacement of both the taillights? I should mention, both my Brake and turn lights ARE working, but the rest of the light is dead.
 

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The turns signals are incandescent not LED as all the rest are. But what I find odd is your brake light is working but not the tail light. Since the brake light is working, it doesn't sound like a loose plug or a fuse issue. Sounds like maybe an LED driver issue maybe? Also sounds like either a trip to the dealer and/or replace your two light assemblies.
 
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Discussion Starter · #3 ·
The turns signals are incandescent not LED as all the rest are. But what I find odd is your brake light is working but not the tail light. Since the brake light is working, it doesn't sound like a loose plug or a fuse issue. Sounds like maybe an LED driver issue maybe? Also sounds like either a trip to the dealer and/or replace your two light assemblies.
MY NEIGHBOR FIGURED IT OUT!! The passenger side license plate bulb was out, and took out the taillight with it. Once we replaced the license plate bulb, the LED'S on the taillight came on!! I guess it runs in series back there, as the power runs into the trunk from the driver's side!!
 

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That's extremely weird. I'm glad you were able to get it figured out though.
 

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Discussion Starter · #6 ·
The turns signals are incandescent not LED as all the rest are. But what I find odd is your brake light is working but not the tail light. Since the brake light is working, it doesn't sound like a loose plug or a fuse issue. Sounds like maybe an LED driver issue maybe? Also sounds like either a trip to the dealer and/or replace your two light assemblies.
Welp it wasn't so solved until today. Apparently a battery drainage threw off the BCM and it had to be reset. I had an Auto electric guy come out and fix and diagnose for an EXTREMELY good price.
 

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Discussion Starter · #7 ·
What I have learned from my experience is that sometimes with electronics or electrical problems with these cars comes from a voltage drain, and the modules just need resetting with a good scan tool
 

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Discussion Starter · #8 ·
Inner and OUTer passenger side taillight is OUT . Is this usually a light fault or fuse/relay? I have been through TONS of fuse box diagrams, which fuse/relay and where should I look to replace?? Or is this a full replacement of both the taillights? I should mention, both my Brake and turn lights ARE working, but the rest of the light is dead.

Welp.... Same side LED's on the taillights are out again. Im hoping its not a module failure. Can anyone point me to what specific module controls these led's and how to reset it? I tried the old fashioned way, with a jumper wire to the battery, but that does not work at all!! Love this car, but this is a problem that needs a permanent resolution
 

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If I've learned anything from the hours spent watching diagnostic videos... it's sounds like a wiring ground issue. Maybe try tracing the wires and look for any points where wires could be pinched or rubbing against metal/each other. Think about things you've done and places in/on the vehicle that were manipulated when the problem would go away for a time.
 

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Discussion Starter · #10 ·
If I've learned anything from the hours spent watching diagnostic videos... it's sounds like a wiring ground issue. Maybe try tracing the wires and look for any points where wires could be pinched or rubbing against metal/each other. Think about things you've done and places in/on the vehicle that were manipulated when the problem would go away for a time.
Funny you replied. I took it to a shop on Monday and had someone look at it, and it seems to be a wiring issue. There is a short, somewhere. I was gonna reply back to this post later in the week, after it is fixed, with an outcome!!
 

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Funny you replied. I took it to a shop on Monday and had someone look at it, and it seems to be a wiring issue. There is a short, somewhere. I was gonna reply back to this post later in the week, after it is fixed, with an outcome!!
One of my pet peeves is that people so often say "short" when they really mean "open." A short would be blowing fuses and/or causing damage. An intermittent open results in the symptoms you have described. I suggest checking the wiring from the trunk lid where it bends at the hinges as the trunk opens and closes. This is a known problem area.
 
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