Hello Scotty, I recently bought a 2000 Lexus RX300 from Florida. It had roughly 99k miles when I…

Trompii

Hello Scotty,

I recently bought a 2000 Lexus RX300 from Florida. It had roughly 99k miles when I bought it and now it just broke 100K driving it back up to Michigan. There are a few issues associated with it when I bought the car. First, the display screen is blank, the radio/climate control all work but I cannot see what station I am on or the temperature. The display lights up but that is about it. Second, the power door locks do not work for any of the doors and neither does the key-less entry system. I have to manually open and close the doors either by key or the inside switches. Also when you open a door, the courtesy door lights light up but the dome lights do not as well as the foot lights do not light up as well. Third, the fog lights do not work as well as the rear wiper. (The wiper fluid motor does work in the back and wiper fluid does come out.) I noticed the rear antenna was also broken off but I can hear the motor running when the radio is turned on/off but just for 15 seconds or so. Besides that, the car runs pretty good. I have checked and double checked all fuses in the engine compartment and driver foot well and they all seem to be fine. I have checked the battery and alternator and they seem fine as well. When fully charged, the battery gives off roughly 12.6 volts and when charging it is around 14.2 volts. When the car is running, it is around 13.6 volts. Now, if the car sits for a day, I've noticed the battery drops to about 11.67 volts. If it sits longer, it drops even lower. It seems like I have a short or something within the system. So I unplugged the negative terminal and hooked up a multi-meter to see the draw. I closed all doors (turned off all lights and accessories) and set a screwdriver in the hood latch to make it though it is closed. I set the multi-meter to DC 10A and I got about .50 Amp draw with everything off. I took out the DOME fuse and it went down to .30 Amp draw. When I took out the ECU-B fuse, it went down to about .001 Amp draw (Including the DOME fuse out). Currently I am stuck as I tried replacing the display with other displays but it did not help. I also have a donor antenna from a vehicle in the truck that I have not set up yet. Can you guys shed any insight into my problems as I am not to electrically savvy as I'd like to be lol. I am pretty good on the mechanical side though.

Comments (2)
No. 1-2
Trompii
Trompii

I checked with the BlueDrive and there are not codes to any of the modules. I did noticed the rear hatch is not the original as the VIN numbers do not match and they body shop sprayed paint over the wires. I tried to look for any issues there but came up with nothing. Any thoughts? I had the battery tested at Autozone and they said its fine.

Techsus
Techsus

For starters, I'd OBDII scan it thoroughly to find what Fault Codes it's throwing-- good place to start, at the beginning. Post Codes right here--