I have kind of weird problem with my RX400H 2007. When I turn my air con on, I get Check Hybrid and Check VSC message displayed with check engine light, traction light and red triangle. Scanning tool displays P010A code (Mass Air Flow (MAF) B Circuit Malfunction). Just to make sure, I ran vehicle for about a month without turning on A/C (blower was on most of the time) and no errors. When I turned on A/C today, same error came up. I’m unable to understand what air con and MAF circuit to do with each other. The vehicle keeps running fine when error comes but doesn’t start after turning off, until code is cleared or battery terminal is removed and replaced. I’ll really appreciate if anyone can help me solve the issue.
By John Aguilar
As I came out of a tight turn and accelerated, the engine hesitated and lost power but kept running. The check engine and automatic steering control (ASC) lights illuminated and stayed on. I limped off the highway, drove to a safe stopping place with limited power (especially up hill) and turned off the engine. When I restarted the engine all cautions were cleared and the engine ran fine. Diagnosis revealed condition code P0300, random cylinder misfires, but the engine continues to run fine. Are the ASC light illumination and random misfires related to each other and to the tight turn event? What is the likely cause?
I've been a member of this reputable forum for a while now, and i want it to share this as a small gesture of gratitude.
coming home one night and parking the car as always ,and suddenly it was like Christmas came early to my dashboard.
vsc light, trac light, this circle between two brackets , and the big C (check engine) all came on at the same time.
i tried to put the car in gear as it was on Park, and a peeping sound came on and a message asking me to put the car in P shift position.!!!!!!!!!!!!
i was baffled and i suspected the gear GOD forbids, and i had a misty idea that a loose fuel cap will trigger this symptoms but i had to check it in the morning , and it was the same movie all over again.
Anyway i opened the fuel tank and tightened it up till I heard a click for three times.
i started the car again with no change and as you can see i was really frustrated at this point .
i left it for a couple of hours out of frustration and went to wok then i came back and started the car .......Shazam everything returned back to normal.
and the LOOSE FUEL CAP was really the culprit as all experts agreed here.
N.B: the beeping sound was coz i put the car on gear while the driver's door was open and of course the occuring message was of the same reason , as you see i was really panicking.......
Thanks and I hope this will help someone .
So im just wondering if im seeing this right .....i have been bitten by the apparent lexus goblin ....no response from gas pedal until the very bottom and search google found this cool site and posts from as far back as 2011 i believe and although i may have missed it NO SOLUTION....plenty of remedys and band aids but no real fix and lexus has been having these same problems with their cars from 98 to i think i saw someone post about a 2011 with the problem ...and still no solutions ...really? Or did i just miss them lol
im new in the Forum and live in Europe. I drive my Lexus LS430 since 3.5 Years. As you can probably read im not a native English but i will try my best.
Ive got an Error on my Boardcomputer. It only say Check VSC. As far asi know this is an Error wich has an other root. I checked i with the Lexus guys and we found an Error on the OBD wich says that there is a valve damaged on the Air intake. As far as i understood him right, there is an valve wich swich on and off the last 2 Cylinders in a higher RPM Range.
Now i do not exactly understand the reason for this valve and i also do not know under wich Name i can search something like this. Do you have any suggesteon, where i can find some explanation about that valve, and Probably a spare Part?
Thanks for your Help