My parents have a 2000 Lexus RX300. About 6 months ago it developed a parasitic drain that would completely drain the battery if it sat for a few days. I tested the current draw for all the fuses under the hood and found the DOME fuse was consistently drawing about 0.5 amps with the doors closed and the interior lights off. I removed the DOME fuse and the battery has maintained its charge after sitting for several weeks. Odd thing is that when I removed the DOME fuse, we lost power to the radio and the center information panel. I don't know why the radio and information panel would be effected by the DOME circuit. Is there a component that would interconnect the radio/information center to the Dome circuit? Thanks, Gilbert
I just purchased a 2004 GX470 about a month ago. It has the Marc Levinson sound system with navigation, cassette radio unit with a multi-disc player in the glove box. When you push the Audio button the nav screen, all the screen says is "Audio Off" with no audio coming from the radio. When my lights are on at night, I noticed the radio unit itself is not illuminated which makes me believe I have a power issue possibly to the radio unit. After some research, I did come across the Service manual for the radio ( http://www.clublexus.com/forums/att...-toyota_kex-m8527-kex-m8727_servicemanual.pdf ).
If I put in a destination in the navigation, you can hear the audible instructions. If you push the other buttons on the nav screen, you can hear an audible tone at the press of the button. However, when you push the audio button, it just gives you the message "audio off". I brought a multimeter home from work the other night to check the power coming through the wiring harnesses and from what I could tell, I am not getting any power. (***Side note - I know enough to be dangerous but I do not claim to be a technician by any means and most of my information is from some engineering friends and YouTube...). I referenced the various pin positions in the radio service manual to know which ones to check. I also checked with the vehicle key turned to ACC mode and then also checked with the engine running. Both times, it didn't appear that I had any power coming through to the radio unit. I also checked the fuses and they all seemed to be fine.
I called one of the local car audio shops here in town that I received a good recommendation from and he basically said good luck and they wouldn't touch it with being OEM and knowing all the issues that the Marc Levinson system has had.
Has anyone else seen this issue? Any ideas on where the power would actually be coming from that feeds the radio head unit? The wire schematic is included on the service manual but it's tough to make heads or tails of it.
Thanks in advance for any responses.
Recently, I noticed that power steering has been making a ton of whining noise when I turn the steering wheel. After topping off the power steering reservoir with the Dextron ATF fluid, I checked the surrounding near the reservoir, there was no signs of leakage. With reservoir at correct level, the power steering would behave normally again. But that was short-lasted as fluid level would drop again.
I ended up getting on my knee at the driver side (not passenger side), and noticed a ton of oil leak. I used my hand to touch the fluid and noticed that it is indeed the power steering fluid. I took a photo, but can anyone shed the light on what component may be at fault on the driver side? I thought the PS pump is on the passenger side. I haven't jacked up the car to take a better look yet, but I will do it soon.
Note: the attached photo was taken on the driver side near the driver side front wheel
I had a progression of problems New Years Eve that eventually led to abandoning the car. First, the cruise control would not function properly in a slowdown zone on I69. Second, I noticed the power steering was gone. I exited the highway and pulled over into a Target parking lot. On the way, my inside electrical functions, radio, heat, display, etc... began shutting down one by one. I had no indication of an electrical problem at the time, only the symptoms. The headlights eventually went out but I was able to get the car parked.
The next day I got the car started after charging the battery. I reasoned my alternator may have been out and I was surviving on battery power. Later in the day the battery acted as if it were drained. The battery has been tested (only 1 year old) and it checks out fine. My local mechanic in my small town cannot get me in until next week.
I have no codes or anything else to go on. But any insight into my problems is appreciated.