ARuffIndividual
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- Joined
- Sep 3, 2024
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First...let me list the symptoms:
Intermittent issues with wipers, sunroof, and garage door openers.
Passenger Tail lights rapidly flicker.
Driver Low Beam does not work (yes, I changed the bulb).
What I have done so far:
I have taken it to 2 mechanics. They will not touch it without replacing the BCM (Body Control Module) which is very expensive. This is their first form of troubleshooting according to them. After seeing 2 almost $2000 estimates, I wanted to explore what I could do to resolve these issues. I did find water in my passenger taillight, so I replaced it. After cleaning all of the grounds I could find (cleaning meaning that I pulled the connection and used sandpaper/wire brush to create a good contact), and checking to see if ANY fuses were blown (none were blown that I could find {I used my multimeter to test them all), I found that someone moved the F73 fuse somewhere else. I replaced it and this seemed to fix the issues. After 2 weeks of working fine, the lights are acting up again. One other troubleshooting step I did, just to rule out the BCM, was I bought a used BCM off of Jeep of the exact make and model. Once plugging it in, the same issues were present. I then started to test connections at the lights themselves. While inactive, but "awake," the voltage remained around 6.25V for the headlight. When activated, nothing changed. I tested the working light and it jumped to 12.3V. I am almost certain that there is a short somewhere but am unsure how to start searching for it. Any advice will be appreciated!
Thank you!
Michael
Intermittent issues with wipers, sunroof, and garage door openers.
Passenger Tail lights rapidly flicker.
Driver Low Beam does not work (yes, I changed the bulb).
What I have done so far:
I have taken it to 2 mechanics. They will not touch it without replacing the BCM (Body Control Module) which is very expensive. This is their first form of troubleshooting according to them. After seeing 2 almost $2000 estimates, I wanted to explore what I could do to resolve these issues. I did find water in my passenger taillight, so I replaced it. After cleaning all of the grounds I could find (cleaning meaning that I pulled the connection and used sandpaper/wire brush to create a good contact), and checking to see if ANY fuses were blown (none were blown that I could find {I used my multimeter to test them all), I found that someone moved the F73 fuse somewhere else. I replaced it and this seemed to fix the issues. After 2 weeks of working fine, the lights are acting up again. One other troubleshooting step I did, just to rule out the BCM, was I bought a used BCM off of Jeep of the exact make and model. Once plugging it in, the same issues were present. I then started to test connections at the lights themselves. While inactive, but "awake," the voltage remained around 6.25V for the headlight. When activated, nothing changed. I tested the working light and it jumped to 12.3V. I am almost certain that there is a short somewhere but am unsure how to start searching for it. Any advice will be appreciated!
Thank you!
Michael
