One brake light is out. Fuse is good and bulb is good. now what?
1999 Subaru Legacy wagon GT right rear brake light is out. I’ve checked fuse and bulb. Both are okay. what is the next step. thanks for any advice in advance.
Check if there is 12V DC at the RH brake bulb connector terminal when the brake pedal is depressed.
If there is voltage then check if there is a good earth connection at the bulb connector terminal by connecting an Ohmmeter between an earth point (any bright, shiny metal point on the body of vehicle) and the other connector terminal on the bulb i.e not the same terminal where the power was detected.
Also check that the connectors inside the unit where the bulb is inserted are not corroded preventing a good electrical connection.
If there is no voltage then here’s the 98 Legacy Wiring Diagram (MSA5TCD98L) Online that may help. (couldn’t find one for a ‘99 model so hopefully they’re the same). Go to p.151 (or 51of 57 .pdf numbering) to get to the start of the rear end wiring section so that you can follow the wires back from the RH taillight assembly through the different harness connectors.
If all this seems too daunting, contact a reputable, professional auto electrician and ask for a quote
Thank you for your lengthy and helpful explanation! I had hoped to do this myself and save a few bucks. (still looking for the reputable auto electrician that won't take advantage of a single gal) I'll give it a try!
If you can't find the problem then just tell the auto electrician what you've done to try and find the problem, especially if you have also tried the checks that I said to do and it showed that there was no voltage at the bulb connector. You can test the LH brake light to make sure that you're doing it correctly
That way they should understand that finding a problem through the wiring harnesses etc is not really a easy job for an amateur and perhaps a professional is required.
That should impress them enough about you're understanding of the problem so that they hopefully shouldn't try to take advantage of you're "supposed ignorance" regarding these sorts of things.
Follow your instinct when deciding who to go with ;-)
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