Lexus Recent Questions, Troubleshooting Help & Support

1. Locate the ECU: The ECU is typically mounted under the hood of the vehicle, near the firewall.
2. Disconnect the battery: To avoid any electrical shock or damage, disconnect the negative battery cable before beginning the removal process.
3. Remove the cover: There is likely a cover or panel that needs to be removed to access the ECU. This may be held in place with screws or clips.
4. Disconnect the electrical connections: The ECU will have several electrical connections that need to be disconnected before it can be removed. These connections may include plugs, wiring harnesses, and other components.
5. Remove the mounting screws: The ECU is usually mounted to the vehicle with screws. Remove these screws to release the ECU from the mounting bracket.
6. Remove the ECU: Once the screws are removed, the ECU should come out relatively easily. It may need to be lifted out over the junction block or other components.
7. Remove the junction block: The junction block is mounted above the ECU and may be held in place with screws or clips. Once the ECU has been removed, the junction block should be easy to access and remove.

Note: It's important to follow the steps carefully and to be cautious when removing electrical components from a vehicle. If you're not confident in your abilities, consider hiring a professional mechanic to remove the ECU and junction block for you.

It is on the Club Lexus site https://www.google.com/search?q=1995+Lexus+LS400+vacuum+line+diagram ..

Redi Hoxha The oil light only detects loss of pressure not oil level. Your oil pressure sensor or switch monitors oil pressure in your engine. It sends these signals to the ECU and to your oil pressure gauge or warning light. Swap out the oil pressure switch. As an aside, I worked in a place with artwork from a very accomplished Toronto artist who signed his artwork just 'HOXHA'. https://www.google.com/search?q=2003+lexus+es300+oil+pressure+switch+location ..

It is possible that the issue could be related to low oil pressure in the engine, as this can cause the engine to run roughly. I suggest having a qualified technician take a look at your engine to check the oil pressure and ensure that it is within the acceptable range. Additionally, they should be able to advise you on the best course of action and help you solve any other issues that may be causing the rough running.

The round bullseye light? I thought that is the daytime driving light but it's not, it is Main or Low beam. I read that the best way to remove those is to turn the wheel and remove the wheel well liner. It gives the best access in that corner. I asked the mechanic at the Lexus dealership because I told him it was hard to get to the lights because of the battery being in the way, and I read that tip. He said "yes it is the easier way".A trick for testing your lights is to park in a mall with a glass window in front of the car. You can go through the lighting options and see what is working.

What EXACTLY does it do when you turn the key? This will give clues as to where the problem could be. A slow sluggish crank suggests a low battery charge or an old weak battery. In general any battery over 5 years old is considered 'Old' especially if the vehicle is used a lot. Just spinning could be a Spark issue and spinning, catching and immediately stalling out could be a fuel supply problem. Comment below with more information and I'll try to help you more.

https://www.google.com/search?q=Adjust+headlights+on+2002+Lexus+ES300

Range, <<< seen where? we cannot see what you see, here. sorry. wild guess transmission range fails on the cluster?????????? car drives ok, not told , job 1. yes/no. well we scan the PCM (means OBD2 port on dash) scan TOOL. and see why.? causes are (but the error matters) DTC 1: lost comms from TCM to PCM and cluster brains. 2: transmission PRNDL switch fails but does car drive oK>? 3: wiring related to all that failing. 4: check fuses for blown?

The Relay looks to be item 52 https://fuse-box.info/lexus/lexus-rx300-xu10-1999-2003-fuses https://www.google.com/search?q=2001+lexus+rx+300+starter+relay+location Relay testing

The problem you're experiencing with your 1999 Lexus RX 300, where the vehicle loses power until reaching 40 or 50 mph and then starts over again at a stop sign, as well as a high-pitched noise that is not normal, could be caused by a few different issues. Here are a few possible causes and solutions:

1. Mass air flow sensor (MAF) - The MAF sensor may be faulty and not sending the proper signals to the engine control module (ECM), causing the engine to lose power. A mechanic will need to diagnose and replace the MAF sensor if necessary.
2. Throttle position sensor (TPS) - The TPS may be faulty and not sending the proper signals to the ECM, causing the engine to lose power. A mechanic will need to diagnose and replace the TPS if necessary.
3. Engine control module (ECM) - The ECM may be faulty and not sending the proper signals to the engine, causing the engine to lose power. A mechanic will need to diagnose and replace the ECM if necessary.
4. Exhaust system - The high-pitched noise could be caused by a problem with the exhaust system, such as a leak or blockage. A mechanic will need to diagnose and repair or replace the exhaust system as necessary.
5. Transmission - The transmission may be faulty and not shifting properly, causing the car to lose power. A mechanic will need to diagnose and repair or replace the transmission if necessary.
6. Fuel system - There could be a problem with the fuel system, such as a clogged fuel filter or a malfunctioning fuel pump. A mechanic will need to diagnose and fix the problem.

It's important to have the vehicle inspected by a qualified mechanic to diagnose the problem and perform the necessary repairs. Some of the issues can be easy to fix, but some require more extensive repairs and knowledge of the systems.

I had this on my ES330 and spent a year trying to solve it. I was driving away from work and my friend yelled at me to stop. He said my upper brake light in the back window was out. I replaced the bulb, and the rear light error went away. It is easy to fix the light unit slides off to the left and lifts up. It takes a small capless bulb. Let me know okay.

Help here. It is the same for any vehicle.

well the service manual covers both. dcc means ( normal phantom drains, all computer that need and have memory this is memory power) the car is shipped with no DCC fuse. dome light well try it , in drive way then around the block. be brave or buy the book. the dome lamp that does no glow is not draining any batter ever sure bad door switches sure, my cars all have, dome disable switch covered fully in the users guide, (lost that?) lots of things can do the phantom drain even a bad alternator the drain is on DCC or is on the fuses marked hot all the time , vast things on that too. best is use an ammeter and not guess key off battery cable amps below 0.050amps or 50mA if above that much that is called a phantom drain then we pull all fuses, 1 by 1 to see if current falls to spec sure DDC sure dome and gee 25 more use on bat + hot all time bus. when found the same book tells you all things on that fuse even 10 or 20 things that must be pulled to prove they are not bad. not guessing or be wrong 25 + times. or more. learn to use an ammeter or pay those that do. toss coin.

no their not

codes are OBDll and are available on line free. copy and paste https://www.engine-codes.com/p0200_lexus.html ..

To remove the glove compartment on a 2007 Lexus LS460, you will need to first open the compartment. Then, you will need to locate the mounting screws that hold the compartment in place. These screws are usually located on the sides or bottom of the compartment. Once you have found the screws, use a screwdriver to remove them. After the screws have been removed, the glove compartment should be able to be gently pulled away from the dashboard. If the compartment is stuck, you may need to carefully pry it away using a flat tool like a screwdriver or a trim panel tool. Be careful not to damage the dashboard or the glove compartment as you remove it. Once the glove compartment has been removed, you can access the area behind it for maintenance or repair.

CHANGE FUEL FILTER.SQUIRT FEW DROPS OF OIL IN EACH CYLINDER REMOVE SPARK PLUGS SQUIRT A LITTLE ENGINE OIL DOWN IN THE CYLINDERS TO SEAL THE COMPRESSION RINGS BUILD UP COMPRESSION SO ENGINE WILL START.

USA SPEC CAR ? (MEANS SOLD THERE FIRST) OR VIN TELLS THIS. I read the SM, service manual to you, horn schematics. on 2009 cars, best is check all fuse just in case network errors are cause. ok no BCM here. so yes the relay clicks , and closes and honks the horn shows 2 horns but using ground a23 and a24, got rust there>? the fuse drives a fuse called HORN 10amp if you do a 2 mean test, and gay1 honks, and guy2 listens to horn really and you hear it click , that tells you 2 things, horn button good and CLOCK spring, horn pin not broken and like magic if it did click, now you found it using EARS. the book says engine room R/B and J/B (horn relay) engine bay fuse box has the relays. not cab. again USA car left hand drive, not UK or other RHD cars.world wide

All connectors are nice clean and tight. Are there any other codes?