No LCD
Thread Starter
Driver School Candidate
Joined: Mar 2017
Posts: 28
Likes: 3
From: tx
No LCD
Greetings Forum.
2000 RX300 AWD, 66k miles.
I've got an issue. The LCD above the radio went blank. Radio no longer turns on. Antenna no longer extends. Interior dome lights - front, rear passenger, and trunk - don't work. Sunroof doesn't open. Home Link no longer works. Everything else I tested functions.
Checked fuses in both boxes. No issues found. Disconnected battery for 45 minutes, no change - same issues present.
No work recently performed on vehicle, no funny behavior noted prior to issue occurring, everything on vehicle - and I mean everything - was working as designed.
Suggestions?
Thanks
Douglas
2000 RX300 AWD, 66k miles.
I've got an issue. The LCD above the radio went blank. Radio no longer turns on. Antenna no longer extends. Interior dome lights - front, rear passenger, and trunk - don't work. Sunroof doesn't open. Home Link no longer works. Everything else I tested functions.
Checked fuses in both boxes. No issues found. Disconnected battery for 45 minutes, no change - same issues present.
No work recently performed on vehicle, no funny behavior noted prior to issue occurring, everything on vehicle - and I mean everything - was working as designed.
Suggestions?
Thanks
Douglas
Intermediate
Joined: Sep 2013
Posts: 262
Likes: 15
From: NJ
First thing I would do is disconnect anything that doesn't work, like the dome light, and test for power and ground. No power, then something wrong with a wire that delivers power. No ground, then check where the wires ground to. I wouldn't be surprised if it's a dirty ground.
Lexus Test Driver
Joined: Sep 2007
Posts: 962
Likes: 28
From: Iowa
I've seen a "fusible link" on some American cars, sort of like a master fuse for multiple already-fused circuits. Doe the RX have anything like that? Other members on here will be more knowledgeable about that than I am. It certainly sounds like a fuse-type issue or like something is disconnected.
Thread Starter
Driver School Candidate
Joined: Mar 2017
Posts: 28
Likes: 3
From: tx
found it
Once I pulled the wiring diagrams down ( www.revbase.com/BBBMOTOR/Wd (thanks hypervish) ) and started looking them over, the common thread was a single fuse for the dome lights. Even the radio ran some functions thru that fuse. So, I pulled it and sure enough, cooked. I don't have replacement fuses that size on hand, so will get new fuse(s) tomorrow and confirm solution.
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