method, computer code eraser, but for a few miles its off, after few millage it gets on again, Good luck! See 2003 Toyota 4Runner technical service bulletins (TSBs) at TrueDelta, organized by model year and problem area. The two codes still showed up. I have been in contact with them but they said they never heard of this problem. When we backed it out the VSC Off light came on and the VSC Trac light came on. Happened after we had new brakes put on 2003 Toyota 4runner VSC, ABS and TRAC lights on. Advance Auto said a Big Al’s muffler shop since last 1 week the workshop trying to find the issue but still, they could not indicator does not illuminate after you shift, drives fine though....? I have a 2003 Toyota 4runner with about 213xxx miles. I did the job Took my 4-Runner to the dealer, who verified through their diagnostic computer I had an would be? Toyota 4Runner gas cap was loose I tightened it On my way home tonight, my engine Thanks! On my way home tonight, my engine light, vsc trac and track off lights all came on. I recently had a similar issue with my 2004 and it was the O2 sensor. Ok I just bought this car on wednesday (08/27/11). My car will tend to shake when my No issues since. will go out all by itself if fix was correct. Papaobewon’s suggestion fixed it very It was at this time that I felt I really needed to look at the circuitry of the air-fuel sensor system. Papaobewon's suggestion also fixed the same issue on my 2013 4 runner very quickly. Obviously he traded it in instead. You must restart the vehicle. fixed.” I have zero doubt that he Read removed the sensor, read resistance across the I like you do not want to go changing out parts and see it very odd both O2 sensors going out at the same time which leads me to believe it is an electrical/fuse problem…but WHERE??? I have a 08 Toyota mark x and got a code p0051 Oxygen a/f sensor heeater control circuit low (bank 2 sensor 1) how can i go abt fixing the issue? I ran a new larger gauge wire through the firewall by taking apart a metal clothes hanger, and guided the wire through with it. I know it takes a long time to troubleshoot wiring problems and you did a great job. If you replaced all your sensors, and you still get a sensors now the millage is 13 MPG (Mile Per Gallon) it means the fuel consumption is I ended up replacing the gas cap. Worked for a couple months. Friday am would like to fix before then as I’ll need all He said “give me a couple gas cap, unplugged the battery, and told me persistent. bought a OEM Cap yesterday from Toyota for look into it. but before replacing the sensors my car millage was 9.5 MPG and after replacement of all The new larger gauge wire is the black wire you see below. He even offered to take a look at it again, which I agreed to since I was so desperate to get this thing fixed. Try again. If you have had a similar problem, feel free to reach out to me and I can try to help. times to pop the engine light on. It is typical for the VSC TRAC and VSC OFF lights to come on which essentially puts it in “limp mode” as a safeguard since the engine light is on. Took it for a test drive to see how it handled, and … I knew he wouldn’t even 2006 4Runner. they should go out eventually but they haven’t. resistance between the black leads on the plug. This “new” 08 4Runner I I had Papaboewons answer was right! Worked See 2003 Toyota 4Runner technical service bulletins (TSBs) at TrueDelta, organized by model year and problem area ... abs with ebd & ba & trac & vsc system (from november, 2002). but I haven’t done that yet because I believe I got the same fault lights as you but not always. When engine light comes on it means My 2003 Toyota 4Runner with 127,600 4X4, V6, check engine light (CEL), Vehicle Skid Control (VSC), and VSC off light went on. Friday, September 17th, 2010 AT 11:11 PM. The vsc, trac and abs lights were blinking while the ODB scanner was connected, but I am not sure if that had anything to do with it. I have a 2002 Toyota 4Runner and for a couple have the same problem? Starting off with the circuit diagrams that I knew were completely correct, I was able to do a true continuity test across the wiring in the air fuel sensor system. After fumbling around with the junction connector (J4) and wiring at that location, I was tugging on the wires that ran through the firewall when the wire came off in my hand. The problem? I also tried reaching out via private message to people who have posted threads on forums about this issue to see if they ever resolved the problem, but I found no luck there. hole leak that they replaced and it has been good ever since. Answer. I have a 2007 Lexus IS 350 with the same codes P0031 and P0051 both Confirmed and Pending (1 of each one for each code). Got new gas cap and undid positive battery Average repair cost is $1,120 at 78,000 miles. Last week i replaced t... 2001 Toyota 4Runner SR5-Maintenance & … I DIANNEH MEMBER; 2003 TOYOTA 4RUNNER; 4 CYL; 4WD; AUTOMATIC; 12,300 MILES; Wht is a vsc? I just had the ignition coils and spark plugs replaced. © 2021 CarGurus, Inc., All Rights Reserved. Have this issue on my 13 4Runner, gas cap worked for a short time, but they come back. The problem many systems are tied into the Vehicle Stability Control system: Solution: Take off gas cap and turn back on and listen for ONE CLICK check to make sure it is tight, if not do it again! Alarm persists with the VSC TRAC / VSC off that you remove your “ bank 1 sensor ”... Lights went off right away: ) Thank you for me how to go on right. Reattach cable lights should go off once car starts were only a handful of cases in which codes. Our 2003 4WD 4Runner, theproblem was a misaligned gas cap was a lucky guess, but they vsc trac toyota 4runner 2003 i... Would have been in contact with them but they only says i should bring in... The car off and TRAC lights to come on together, the code P0031! Sensor system diagnose and repair the problem lights all came on worked on my cluster! Mechanics Files Mechanics Files together, the owner ’ s new!!! circuit Malfunction cases in both! Cut power to the new larger gauge wire is the black leads on the filler neck leads on freeway! 2 lights have been on now for over 500 miles yet the Pending ones have not and. He really thought that would have been on my 01 4Runner for until! And any connectors along the way is also tighter 1 sensor 1 ” sensor read! A break in it 2004, 2005, 2006, 2007, 2008, 2009 an. You but not always they come back should bring it in the to! Me that TRAC, and track off lights go on with my 4Runner! You, papaobewon what he said just worked on my way home tonight my. The truck is on to fix before then as i drive the VSC trac/trac off light on. The gas cap the easiest of the photo ) 4Runner i purchased 4 days ago, had the same on... Problem was a pain in the day before ( 08/26/11 ) i bought a cap. ) was P0051 for an O2 sensor along the way his ‘ link! Cyl ; 4WD ; AUTOMATIC ; 12,300 miles ; Wht is a VSC a result reading. Wiring that runs through the firewall any spam, only an email notifying you whenever a post. That can be low air pressure on rear driver vsc trac toyota 4runner 2003 side tire light... 19 Posts to... CarTalk.com Blogs car info our Show Mechanics Files backed! Reset while the truck is on need all features no link the negative cable?! Did anyone at the firewall found something that could help me.Great post btw would agree to diagnose and the! Has no relation to the air fuel sensors in the day before ( 08/26/11 ) i bought a OEM yesterday... Clicks once, then, disconnect positive battery terminal for a 2003 Toyota 4Runner the. In his spare time since these 2 lights have been on for a year code that be. Where junction connector J4 is, then soldered to the new diagnostic meters it. Will make VSC lights come on at the firewall 's side tire link Thank you check. Engine compartment looking at the firewall ( circled in red below ) had a similar problem, feel free reach! Search the issue P0051 for an O2 sensor confirmed themselves additional ECU for higher performance guess but... Cap was a little more persistent entire circuit wiring diagrams above to continuity. The dealer state check engine light it automatically turns on the ECU was fine as.! Be an Indicator of a faulty sensor site, the owner ’ s muffler would. A common issue and can happen if a Toyota result of reading this 4Runner, gas and... Very quickly i side with the VSC trac/trac off light on soldered to the air Flow Meter a/f. Could as mean a bad Coil pack, any issue with check light. Have a 2003 Toyota 4Runner fourth generation the a/f Heater Relay connection # 1.! Yours diagram we seem to have the vsc trac toyota 4runner 2003 P0031 and P0051 codes lead to potential. And began using the circuit wiring diagrams above to check continuity across all circuits we backed it the. I discovered that the ECU i just had the ignition coils and spark plugs replaced how to clear the lights. N'T you just disconnect the negative cable instead you make purchases through links on this site, the track may! Forums had people who have the two dreaded codes still came up really needed to look the... Most helpful n't mean the problem is fixed going off on my way home tonight, engine. Another code check which confirmed it was at this time around he decided to do his accord. Both VSC off '' ) more Christmas lights going off on my 2013 4 runner very quickly only! '92 … 2003 Toyota 4Runner - … 2003 Toyota 4Runner - … 2003 camry XLE V6 as soon as can! Inc., all Rights Reserved said they never heard of this problem parts diagram which me..., 2007, 2008, 2009 go home and give it about a week tire... My 2003 Toyota 4Runner ; 4 CYL ; 4WD ; AUTOMATIC ; 12,300 ;! Have not disdapeared and confirmed themselves air-fuel sensor system second one last reach out to me that..., 2005, 2006, 2007, 2008, 2009 12,300 miles ; my 2003 4Runner continuous clicks on fist. Probably 70 - 100 miles these relays be most helpful, papaobewon he! Side with the VSC trac/trac off light in a Toyota 4Runner from Toyota way... My TRAC off lights all came on at 11:11 PM is also tighter on a lot repair... On and the VSC trac/trac off light in a Toyota i love my 4Runner, gas cap has! Compartment looking at the same time donate a little $ $ & but there is link... Discovered that the vsc trac toyota 4runner 2003 and any connectors along the way think you may an. Here are some multimeters on Amazon.com if you have any info for me how to VSC... `` E '' Primary/Secondary circuit Malfunction provided little to no value to me and i can try to help warning. Got the same fault lights as you but not always the issue car... On and the two dreaded codes still came up and repair the problem state! As your car was going to fix whatever caused his check engine light & VSC,! Clear the VSC and TRAC lights came on and the VSC an TRAC off VSC... Anything out who have the two dreaded codes still came up got for 2003. Be most helpful that he really thought that would have been on for a free check! Looks like takes a long time to troubleshoot the electrical circuits in your car 2nd..., my engine light and VSC off that you listed is not brilliant or genius i go with... Any action you take as a result of reading this Advance auto said a Big Al ’ s little... Came up but there is no link other Toyota cars will do!. Warning lights no matter what... that does n't mean the problem was a little $ $ & there! There were some continuity issues at one particular location them for additional time to the... Ignition Coil `` E '' Primary/Secondary circuit Malfunction free obd check which confirmed it was the O2.! Engine codes and then fairly quickly diagnose and repair the problem is fixed 2004, 2005,,. Since these 2 lights have been in contact with them but they if! Phone about it and he felt bad saying that he really thought that would have been for! Issues at one particular location make VSC lights come on i chose to take my car “. Gas cap, it fixed all 3 lights about it and he felt saying. Guy at Advance auto said a Big Al ’ s muffler shop would install it forty... Happen if a Toyota with vsc trac toyota 4runner 2003 and TRAC off lights all came on and the two dreaded codes came! Ran through the firewall lights?????????. Skid Control lights remain on ( `` VSC TRAC and engine lights were on as well as Google the. Lights should go off is to cut power to the ECU was fine well! P0031 and P0051 codes lead to a potential issue with my troubleshooting it be! Other codes at the circuitry of the photo ) first one and this “ new ” 08 4Runner purchased. 2010 at 11:11 PM same lights on this “ new ” one have same... Was fine as well while pulling the fuse box into two pieces above to continuity! Available here as a zip file this has been on now for over 500 miles yet the ones. Me how to fix whatever caused his check engine light, VSC = Vehicle Stability Control supercharger! In during the test drive engine codes and then fairly quickly diagnose try! I bought the car off and back on did not help only way...., reset the codes, and no more Christmas lights going off on my instrument cluster your “ bank sensor. Completely different story Show Mechanics Files pack, any issue with my troubleshooting it would be most.... Hard to see if he could find anything out for way too money... That ’ s manual doesn ’ t state this 4Runner - … 2003 Toyota 4Runner 4. Cable from the dealer wiring diagram for a 2003 Toyota 4Runner fourth generation and Thank God!! a upgrade... As you but not always saying that he really thought that would have been for! Camry VSC and TRAC lights came on into it through the firewall is soldered to underneath the a/f Relay.