Lexus GS 300 - Answered Questions & Fixed Issues

Yes the O2 sensor preheater problem will turn on the VSC light, see the complaint often, why? don't know.P0031 TOYOTA - Oxygen Sensor Heater Control Circuit Low Bank 1 Sensor 1In most cases the O2 being replaced cures the code but here is the full story.Possible causes- Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit open shorted to ground- Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit poor electrical connection- Faulty Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit- Air-Fuel Ratio (A/F) Sensor Bank 1 Sensor 1 circuit fuse- Faulty Engine Control Module (ECM)

I do think you have a leaking engine cylinder gasket or a cracked cylinder head.

If you have one of the rear tires leaning in then you have damaged the upper control arm or spindle is bent. Have the vehicle suspension checked for damaged components and have alignment done You are also dealing with 24 to 25 year old parts that may be worn.

$5 donation to get the Service Manual from the first link. https://www.google.com/search?q=1995+lexus+gs300+repair+manual+pdf ..

If the immobilizer is worth anything, it will not work at all.

Question translated into written English. Question edited for full year make model as required. Question moved to to 2006 Lexus GS300 category 2005, 2006, 2007 are the generation years that remain the same. You could also try cleaning with a light application of acrylic polish. https://www.google.com/search?q=gs300 https://www.google.com/search?q=2006+lexus+gs300+audio+system ..

From the clicking and knocking, that sounds like low coolant level. It happened to me on my ES330. The block heater popped out due to a bad new replacement, they used the old bracket on a new heater. All your codes are misfires. Go to another mechanic. The popped plug can be fixed cheaply with a Helicoil Insert. Then check or replace all the spark plugs. Then reset the codes. Your reduced speed is 'Limp Mode'. From everything you say, I believe you have a coolant leak or coolant issues, which can cause misfires. I just remembered my ES had to have a new radiator about 6 years ago as it was leaking badly. https://www.google.com/search?q=helicoil+spark+plug+thread+repair+insert https://www.google.com/search?q=Lexus+codes+P0300+P0306+and+P0303 I have the FIXD Sensor and App and do my own code stuff. It is basic but does the job. P0300 Causes Multiple misfires can be caused by many reasons from a faulty ignition system, fuel system, or internal engine failure. The most common reason for this to happen is faulty or worn-out spark plug coil packs, especially if it's been a while since you had a tune-up.Mar 14, 2018

P0300 - Meaning, Causes, Symptoms, & Fixes - FIXD

P0715 is a generic code for the input turbine speed sensor A. P0715 is detected when TCM or ECM does not receive the proper signal from the sensor. Take a look at any damage to the loom wiring, including connectors before replacing the sensor.

with enough fabrication and a software reprogram

Your going to have to try and crawl in there and get to the lock mechanism itself. If it doesn't open with the emergency release cable its going to be a pain. Obviously its jammed up somehow, to free it up without damaging anything will be a struggle. A long screwdriver with some pressure in the right spot on the lock itself while a assistant operates the release may do the trick.

Check this components:
- The Relay - Tail Lamps: is located front seating area, driver side, driver side of steering column, under dash, below instrument panel, mounted in fuse/relay box;
- The Relay - Sunroof: is located front seating area, center, behind head panel, front of sunroof panel, mounted on driver side of head panel;
- The Relay - Main: is located front seating area, driver side, under dash, above kick panel, in relay block, mounted on upper panel;

Look into those things first:
- Battery termials loose?
- Barttery itself loose grounding out to the underside of the hood?
- Door and trunk wiring harness iffy? (esp trunk), and,
- Crazy lighting mods?

Using the 12v from the cig lighter to trigger any other relays etc?

So, maybe a bad batch of fuses, I remember I had the same problem once. Got a pack from Walmart all went bust, got a pack from an auto store and it worked fine.

I hope help you with this.

Check behind the ash tray.

Hi there,

This is a possible sensor malfunction - related to Suspension Height circuit.

Whenever a warning light of this nature is displayed, your vehicle's onboard diagnostic OBDII will have store the appropriate Trouble Codes.

Your local Lexus Dealership will be able to connect their handheld scanner to your vehicle's computer, which will then tell them where the problem lies (this would take less than 30mins to diagnose - marvellous machines they are!)

Lexus will then direct you on the appropriate action.

Cheers,


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How many air fuel ratio sensor and oxygen sensors does a 2003 Lexus ES300 have and can I have a diagram of each sensor and where each sensor goes thank you

you either have to do it from inside the wheel well - or inside trunk - is this a manual pull with cable from inside car or push button electronic- reads as this is a 06 lexus _ its electronic- look up in car manual that comes with car to see what fuse this controls that's where I would end up going to additional to find out - you may have fuse out or sensor - I know some are opened with smart key - batteries sometime are low on power - maybe try new batteries if you have smart key first as they say - try the easy approach first

ManualsLib Makes it easy to find manuals online Try this site for a manual

1-5-3-6-2-4 is the correct firing order for the 3.0l 6-inline 2JZ.

trunk left hand side fuse #90 7.5

Your vehicle does not come equipped with an inertia fuel shut off switch. You will need to look elsewhere for this system failure. Possible causes could be: Anti theft (SRS) system, blow fuse, Relay, module, bad pump, wiring or connection or out of fuel. Please let me know if there is anything else I can help you with.

Something is being over looked. Diagnostics have to be performed to find out if this is related or a coincidence. I would first look, inspect and verify that the main accessory fuses are receiving 12 volts and are still properly grounded. What do you have for test equipment? Do you own a Power Probe, test light or multimeter? Please write back and let me know what tests you have run and what you have found so far. Most of these circuits are wired so they receive power when the key is in the ACC or RUN position and are activated from the Ground side.