Lexus Recent Questions, Troubleshooting Help & Support

Fouled spark plug or plugs or bad ignition coil or coils. Your OBD2 TEster should tell you which cylinders to check.

failed wiring or plug

That is a Dealership job. All that stuff needs fixing properly, especially the fob. Did you change the battery? I even let the dealership do that. Try flooding the lock with WD40, a really good wash out for free up and clean the pins in the lock. I have a 2005 ES330.

Question edited for clarity Not easy as it is HID. It is not normally the bulb, but the transformer unit. Details in the link. Yes, it CAN be done without pulling the bumper, fender and entire headlight assembly. I just completed a HID bulb replacement on my 02 SC430. Took about two hours and included a copious amount of swearing. It is a PITB process that is largely done by braille. Sausage fingered individuals should not even try. The clearance is very small - just enough to get your hand into position. if you google search agains "sc430 headlight service manual" you will find a pdf of the headlight service procedure. I largely followed those instructions, but I have a few hints... 1. Do the passenger side first. Removing the air cleaner gives you some ability to see what you are doing. That lets you learn the process before you go do the driver side "blind". 2. The service manual did not mention a few wires that are present. The leads for the amber indicator light stretches tight across the HID moisture cap. You need to pull the amber indicator bulb assembly first. Fortunately, that is a simple twist and pull. Once the amber lamp was free, I disconnected its harness and set the bulb aside in a safe location. 2b. A pair of wires were physically attached to the HID cover. These make it extremely difficult to maneuver the cover, particularly when putting the cover back on. I ended up physically detaching those wires from the cover permanently. Made life a lot easier and will make replacing the HID bulbs simpler next time. 3. The HID bulb socket easily detaches. The wire spring bale is hinged and won't fly away when you get the two ends free. Those are freed with a squeeze and pull movement. You can do one side at a time. 4. Make certain the spring bale is swung out so it does not impeded placement of the new HID bulb. 5. Because you are doing most of the bulb insertion blind, it is difficult to avoid touching the quartz jacket to something. Practice with the old bulb first. Once in place, you gently rotate the bulb until its notches allow it to seat. You can feel that pretty easily. I used the "MAXLUX HID Xenon Bulb D2C (D2S/D2R) 5000K" bulbs obtained via amazon. Yes, that price is indeed for a PAIR of bulbs. I thought it was for a single bulb due to the low price and ended up with four bulbs. The new bulbs light up much brighter than my aging 02 HID bulbs. A slight bluer than the OEM Lexus bulbs, roughly the same color as the HID's on the Aston. Longevity is, of course, yet to be evaluated. Success. It can be done, but I guarantee a lot of colorful language during the process. https://www.google.com/search?q=Changing+a+headlight+bulb+2002+Lexus+SC430 ..

see your local dealer

purchase a repair manual

MIGHT BE A STARTER PROBLEM

Hello . Im not familiar with this type of vehicle but I would check every single fuse I could find under the dash and in the engine compartment . Also check your manual for hidden fuses . Not much but its a start . When you check the fuses use a test light or swap each one with one you are sure is good . I learned the hard way that "looks are deceiving sometimes" ...

check child lock if only malfunctions from inside --if outside also then remove door panel and examine linkages and clips

notify viper of problem click support in the link https://www.viper.com/

my car I got a 1999 lexus es300 and the ligt of ECR is tur on, what is it ? Itried to scan with my bosch tool but nothing appeared.

Pull the cables back off the battery and check out how clean they are. My guess is that there is corrosion where the flat side of the battery bolt sits inside the cable itself. Use a pliers and pull the bolts out of the booted cables and check the surfaces.The install of a battery requires more than the battery itself, also the connections involvedVery important to not overtighten battery bolts, just snug up slightly to ensure electrical contact. The bolts are made of metal, the thread is made up of lead/aluminum material...you DO NOT want to strip these threads or else that expensive battery will be garbage.

In the link https://www.google.com/search?q=2009+lexus+es300+radio+wiring+diagram&rlz=1C1QJDB_enCA643CA644&sxsrf=AOaemvIuONFkeqwdVRxiO1PLbnarhhgAkw:1638729922281&source=lnms&tbm=isch&sa=X&ved=2ahUKEwj2sZnXqM30AhVXCs0KHa4JC5QQ_AUoAXoECAEQAw&biw=1920&bih=937&dpr=1 ..

I have a 2005 ES330. It is a Lexus, you need the dealership, or a good auto-electrician. The dealership connects is to a scan tool computer that has factory software on it and makes electrical issues very easy. https://www.google.com/search?q=Lexus+dealership Not have much luck having issues with the Expedition as well!

I have a 2005 ES330! The dealership does all my repairs, but I found this. This is how I reset the security system each time after disconnecting the battery:

1. Insert master key (non-remote master) into driver's side door.
2. Remove key.
3. Insert master remote key into driver's side door.
4. Remove key.
5. Insert master key (non-remote master) into ignition.
6. Remove key.
7. Insert master remote key into ignition.
8. Remove key.

The is additional information in the link. If that doesn't work, the best place to ask would be the Club Lexus forum. https://www.google.com/search?q=2001+lexus+es300+security+reset ..

most likely it is one of your belts or serpentine belt,probably just worn or loose, probably does it worse when turning the wheel back and forth during idle also...

You must ensure that you place the correct measurement belt Check belt tensioner I think the water pump failure does not match the noise

power steering pump, or its low on power steering fluid

Clearing the codes is simple that is done by removing the fuse of the EFI from junction box 2 for 10 seconds. Make sure to remove the jumper wire and switch the key off before clearing the codes. Here are some common Lexus vehicles 1990-1995 codes: Code 12 and Code 13 Rpm signal circuit fault Code 14 Igniter signal circuit fault Code 16 ECT control signal fault Code 21 and Code 28 Main oxygen sensor fault (for ES300; SC300 & GS300 models) Code 22 Coolant temperature circuit fault Code 24 Intake temperature sensor circuit fault Code 25 and Code 26 Air fuel ratio fault (for ES300 & SC300 models) Code 27 Sub-oxygen sensor circuit fault (for ES300 CA & GS300 models) Code 31 Low airflow meter voltage (for ES300 and GS300 models) Code 32 High airflow meter voltage (for ES300 model) Code 35 Barometric pressure sensor circuit fault (for GS300 & SC300 models) Code 41 and Code 47 Throttle position sensor circuit fault Code 42 Vehicle speed sensor circuit fault Code 43 Starter signal Code 51 Switch condition signal fault (for ES300; GS300 & SC300 models) Code 52 Code 52 and Code 55 Knock sensor circuit fault Code 71 EGR system circuit fault (for ES300; GS300 & SC300 models) Code 78 Fuel pump control circuit fault (for GS300 & SC300 models)

You may have a bulb burnt out if the relay didn't help. Check all bulbs. If that doesn't fix the problem, you may have a broken blinker cam inside the steering wheel. (where the blinker lever connects inside) I would check in this order. Bulbs flasher relay signal cam