VSC & Check Engine Lights 2001 RX300
Pole Position
Joined: Nov 2002
Posts: 347
Likes: 0
From: Illinois
Glad I found this post. Just got the rear pads and rotors replaced by a non-dealership brake place. As soon as I started the car, the VSC and CEL came on at the same time. I assume something was messed up with the rear antilock sensors after the brake job (reason being that the VSC light was on). They cleared the codes and about 10 minutes into my drive home, they both came back on again.
I'm thinking I should go to Autozone and get the codes read. From what I've read in this thread, the two lights don't necessarily mean somethings wrong with the ABS, but rather something emission related. The repair place said to bring it back tomorrow and they'll look at it. I think I should get the code read at Autozone and if it is emission related, I've got the Lexus Platinum Warranty that I would hope would cover it. For what it's worth, mine's an '02with 53,000 miles on it.
Thanks.
I'm thinking I should go to Autozone and get the codes read. From what I've read in this thread, the two lights don't necessarily mean somethings wrong with the ABS, but rather something emission related. The repair place said to bring it back tomorrow and they'll look at it. I think I should get the code read at Autozone and if it is emission related, I've got the Lexus Platinum Warranty that I would hope would cover it. For what it's worth, mine's an '02with 53,000 miles on it.
Thanks.
Lexus Test Driver
Joined: Jul 2001
Posts: 959
Likes: 2
From: New Jersey
I can't think of anything brake job related that would cause a CEL. Are you sure they didn't do some other checks for you while they were doing the brake job? Like maybe checking the air filter. It is very common for the black rubber hose behind the air box to detach from the metal tube below when checking the air filter. This will cause a 0440 or similiar evap type code.
Pole Position
Joined: Nov 2002
Posts: 347
Likes: 0
From: Illinois
Mikey,
I thought the same thing. However, I did think that the brake job could cause the VSC light to come on. Why the VSC light would come on for a Check Engine problem is beyond me.
Good point, I'll check the air filter tomorrow.
Hey, I see you're in NJ. I just came back from visiting my sister in North Caldwell. Absolutely beautiful out there.
I thought the same thing. However, I did think that the brake job could cause the VSC light to come on. Why the VSC light would come on for a Check Engine problem is beyond me.
Good point, I'll check the air filter tomorrow.
Hey, I see you're in NJ. I just came back from visiting my sister in North Caldwell. Absolutely beautiful out there.
Lexus Champion
Joined: Aug 2007
Posts: 4,507
Likes: 38
From: Bethlehem Twsp. Pennsylvania
The two lights do seem to be connected, vsc,and cel.Maybe they did that to get your attention beter.Who know`s. When mine came on that time for multiple cylnder missfireing,both lights came on.(when I cleaned the air intake)I have posted before on this board,that some of the older toyota`s,when the amp light came on,it was actually an oil pressure issue.Or visa versa,I dont recall now,but it had nothing to do with the actual problem at hand.
Lead Lap
Joined: Dec 2001
Posts: 593
Likes: 0
I'm doing a search for error codes and this seems relevant to my codes I just got today with a friend's OBDII with error codes 1150 and 1130. I'm guessing I should just let the dealer fix it since it PITA to reach inside/under all the parts. Any guesses what the dealer will charge + labor? I started another thread without searching. Sorry.
ClubLexus Stories
Celebrating Lexus & Toyota from Around the Globe
8 Tips for Improving Your Hybrid or Plug-in Hybrid's Efficiency!
Michael S. Palmer
10 Best Lexus Models No One Remembers
Joe Kucinski
TRD Off-Road Premium: Best 2026 4Runner, Except This One Thing
Michael S. Palmer
Top 10 Lexus & Toyotas to Drive Before You Die!
Joe Kucinski
Top 10 Lexus/Toyotas With The LEAST 5-Year Depreciation
Joe Kucinski
Lexus LC500 Convertible Auction: A Preview of Rising Values?
Brett Foote
GX 550 vs TX 550: Best 3-Row Luxury Lexus Family Hauler
Michael S. Palmer
9 Best Lexus Models You Can Buy for Half Price (And 1 You Shouldn't!)
Joe Kucinski
2026 Lexus NX Buyer's Guide: Models, Features, Prices & More!
Brett Foote
Driver School Candidate
Joined: Jun 2009
Posts: 3
Likes: 0
From: mo
B1S1 connector 2002 RX300
The hardest part of the job was the damn connector, but once you understand how it comes apart it's easy. My 02 RX300 VSC and Engine light came on couple of months ago and I've been reading this forum extensively to find a clue. The code from Autozone read P1135, and I am thinking I should replace the B1S1 as suggested here.
Can anyone please help me with a tip on how to disconnect the B1S1 sensor connector. I don't want to do anything to break it and end up with a bigger problem.
Thanks in advance.
Driver School Candidate
Joined: Jul 2006
Posts: 2
Likes: 0
From: NY
Funny thing happened to me with the CEL.... I said i need an inspection anyway so i took it to a repair place and saw i was low on fuel... went to get gas and poof no gas cap... someone stole my gas cap... atleast it was a cheap fix... ordering one with a lock now 
Lexus Champion
Joined: Feb 2008
Posts: 1,709
Likes: 16
From: Ca.
Hi everyone! first time here... Great forum.
My 02 RX300 VSC and Engine light came on couple of months ago and I've been reading this forum extensively to find a clue. The code from Autozone read P1135, and I am thinking I should replace the B1S1 as suggested here.
Can anyone please help me with a tip on how to disconnect the B1S1 sensor connector. I don't want to do anything to break it and end up with a bigger problem.
Thanks in advance.
My 02 RX300 VSC and Engine light came on couple of months ago and I've been reading this forum extensively to find a clue. The code from Autozone read P1135, and I am thinking I should replace the B1S1 as suggested here.
Can anyone please help me with a tip on how to disconnect the B1S1 sensor connector. I don't want to do anything to break it and end up with a bigger problem.
Thanks in advance.
Your call but I HIGHLY suggest you buy the original eq. Denso sensor rather than aftermarket from AZ. You can buy the OEM Denso from online Lexus dealer for $150. There are people who have had problems with aftermarket sensors and think it can't be the sensor, I just replaced it. Not so, if you want to be sure you don't have problems afterward, use OEM. With a P1135 code, it won't hurt anything if it's not replaced immediately, It's only the heater and has little affect on running and no risk involved.
Last edited by code58; Jun 8, 2009 at 10:55 PM.
Driver School Candidate
Joined: Jan 2008
Posts: 35
Likes: 0
From: TX
VSC and CEL - first time on 2002
Same thing here...today three lights came on:
CEL, TRAC OFF & VSC
Auto Zone codes are: P0440, P0441, P0446
I checked the gas cap, and it was on tight. I recently had oil changed at Toyota, could they have done something when they checked my air filter (they told me changing it was a to-do for my next visit)?
Should I:
-buy a gas cap as current one may have bad seals and try that first?
-clear codes and keep driving until i do my 90K service (within next 2or 3 months)
-take it on in to the dealer now
Thanks
CEL, TRAC OFF & VSC
Auto Zone codes are: P0440, P0441, P0446
I checked the gas cap, and it was on tight. I recently had oil changed at Toyota, could they have done something when they checked my air filter (they told me changing it was a to-do for my next visit)?
Should I:
-buy a gas cap as current one may have bad seals and try that first?
-clear codes and keep driving until i do my 90K service (within next 2or 3 months)
-take it on in to the dealer now
Thanks
Lexus Test Driver
Joined: Jul 2001
Posts: 959
Likes: 2
From: New Jersey
I can almost guarantee that they pulled off the evap hose when they lifted the top of the air box to check the filter. This will cause the codes you mentioned. There is a black rubber hose behind the air box, directly under the brake fluid container. It connects to a metal tube below. It is easily pulled off the metal tube when lifting the air box top. Re-connect it and pull the negative battery cable to reset your codes and you should be good to go.
Driver School Candidate
Joined: Jan 2008
Posts: 35
Likes: 0
From: TX
Thanks Mikey,
I did get a new gas cap - minimal expense - and we've removed the negative cable and the car is sitting. We will check the hose you mentioned before reconnecting the cable....sounds like that could very well be the culprit.
T
I did get a new gas cap - minimal expense - and we've removed the negative cable and the car is sitting. We will check the hose you mentioned before reconnecting the cable....sounds like that could very well be the culprit.
T
Driver School Candidate
Joined: Jan 2008
Posts: 35
Likes: 0
From: TX
WOO HOO! Mikey, you were right. As soon as we looked behind the air filter box, we saw the little rubber tube completely off the metal tube...we reattached, hooked up the battery cable, cranked it up and all lights are off. So, I have a new spare gas cap 
Thanks forum members, for helping me out!
Thanks forum members, for helping me out!