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I noticed, that left (driver side) rear tail light (the white one) is not working, well, easy job, got bulb but here is the issue - its not the bulb.
The bulb even is not burn out, replaced, moved from other, it just don't get power.
Tried to move entire set to right side, it works. moved right side to left - same issue, rear bulb is not working. Checked carefully terminal connector - no sight of corrosion or melt, looks just fine, as new.
What can be issue here? where this connector terminates on other end? I believe it cant be fuse, as right side works well. no errors on bulb on dashboard.
Im going to check actual voltage on connector cable, maybe still there is contact issue, tried cleaner as well.
Indeed, start by checking with voltmeter. If you aren't getting anything, check the working side bulb as well jsut to make sure you're probing in the right spot. Pins/socket in the connector could've lost its' seat, or a wire is just good old fashioned broken. That's probably the most likely, given all you've said.
I spent several hours troubleshooting a similar problem. Using traditional methods (visual observation and multimeter), I concluded the socket wasn't getting voltage sent to it from the FRM module. It wasn't until I ran a diagnostics session using ISTA that I learned the FRM saw "too many" shorts on that socket and it turned off power to that 1 bulb. Clearing the fault wasn't enough, I had to run a job in ISTA that reset that particular circuit... then the bulb worked just fine. Well, at least I know the contacts are clean now!
