: Very weird Reverse light issue, Input needed

01-28-13, 09:41 PM
It seems that very very rarely (and normally only once it has rained heavily) I have the following issue.

I will start up the car and the reverse lights will either turn on, or turn on once I clutch in and\or change gear. The R on the dash will show (as if the car is in reverse gear). It occasionally flickers on and off and if changing in and out of reverse.

I'm assuming this is wiring related, and maybe somethings getting wet? I've replaced the sensor before and didn't help to solve this issue. Normally when this happens, I just disconnect the entire 3rd brake light assembly at the clip, turning off the 3rd brake light, the reverse lights, and the plate lights.

It is such a rare issue, that I never really got around to checking it, but today reminded me about it. Any ideas on what this could be? Where in the wiring I should be looking, etc?

01-28-13, 10:19 PM
I think you may have answered your own question - sounds like water intrusion in the wiring harness for the backup light system. (See attached.)