08-18-2020, 10:06 AM
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#286
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Member
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Join Date: Mar 2013
Location: Central IL
Posts: 449
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Member
Join Date: Mar 2013
Location: Central IL
Posts: 449
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Quote:
Originally Posted by himeeto69
Which pins do I need to use then? Is there a different pin placement?
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I think this is what you're looking for.
Also, sent you a private message.
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05-13-2021, 10:22 AM
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#287
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Junior Member
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Join Date: May 2021
Location: Texas
Posts: 7
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Junior Member
Join Date: May 2021
Location: Texas
Posts: 7
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'04, vsc trac & vsc off, bst ssc
I simply wanted to report my experience in case it helps someone else. '04 4runner SR5 with a V6 with 242k. VSC TRAC & TRAC OFF lights were perpetually on. I wanted to get an oil change anyway, so I took it to the dealership, paid for an oil change, and the vehicle was returned to me with the lights turned off. Paperwork shows the BST SSC (Smart Stop Technology) was performed, which is a "recall" I observed on the carfax on the car before I bought the car. I paid for the oil change, but my bill shows the BST performed at a $0.00 cost.
I would deduce that if you have this issue with the VSC TRAC & TRAC OFF lights being on (assuming no other lights are on, no check engine, no ABS), if you go to the dealership and ask for this BST to be performed on your car, it might fix your issue at no cost at the dealership.
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05-23-2021, 02:27 PM
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#288
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Junior Member
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Join Date: Dec 2017
Location: ND
Posts: 1
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Junior Member
Join Date: Dec 2017
Location: ND
Posts: 1
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The causes for the mystery VSC OFF TRAC OFF light
When the vsc off trac off light with no cel is on there are a lot of things it can be. 1600$ of trouble shooting and many hours at the dealerships. I personally found my specific issue.
The causes of the light as following.
OBD II reader
ZPC
Yaw sensor
Steering angle sensor
Wheel speed sensors
Abs cpu
Sticky rear calipers.
Wheel bearings
I replaced yaw abs cpu and steering angle sensor no dice.
Countless zpc
Replaced cv axles and wheel bearings. Rebuilt my front end tie rods sway bar assy, new suspension system.
Took it to many dealerships and shops all with their “great” ideas from worn bushings of my rack and pinion. With second opinions from independent shops saying they are fine.
I decided to live with the issue, this year I decided it’s time to put my yearly 1500$ maintnance project into my braking system.
So on a1 auto I found abs sensors with a 2 year warranty for roughly 100$ each, drivers side is always a few more dollars than passenger even the calipers. Replaced all rotors pads and calipers.
I found my two rear calipers wear damn near seized with almost bare pads. I’ve had the “masters” at the dealership change my pads and mention to me that my rear pads were wearing fast and blamed it on a 200 mile trip where I towed a 20’ bayliner Capri
Once I replaced the sensors and calipers. I have not seen the light from hell in my personal opinion. It has been -30 here in Nd this winter no issues.
My recommendation is start with the calipers. Especially if you’re going into limp mode and randomly the car thinks it’s sliding and pulls your car to one side or another. The locking of the brakes due to sticky calipers. Slows your wheel speed and the system gets confused and turns off. The cold weather contributes to this I assume if your boots on the calipers are compromised and water gets in and freezes it amplifies the issue.
After years of reading forums and chipping away at this light it was either the speed sensors or calipers.
Best of luck with the hell light.
03 v8 4runner 313k miles.
Last edited by Maccade25; 05-23-2021 at 02:34 PM.
Reason: Left info out
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06-01-2021, 10:09 AM
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#289
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Junior Member
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Join Date: Jul 2007
Location: Williston, FL
Posts: 5
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Junior Member
Join Date: Jul 2007
Location: Williston, FL
Posts: 5
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VSC / Trac lights appear to be fixed using MicaBlue ZPC
Well, 635 miles later and lights still off. Very happy me. Stealership quoted $145.00 just to look at it and suggested it probably is speed sensors or a multitude of other issues. My wallet feels more secure now!
2003 V8 4x2, 217,350 miles.
Full factory maintained
4th 4Runner. Luv 'em all!
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2003 4 Runner Sport Edition, V-8, Galactic Gray Metalic, Lighted Running Boards, 11/2002
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09-27-2021, 09:52 PM
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#290
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Junior Member
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Join Date: Sep 2021
Location: Carrboro
Posts: 20
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Junior Member
Join Date: Sep 2021
Location: Carrboro
Posts: 20
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Quote:
Originally Posted by Montego Murph
I think this is what you're looking for.
Also, sent you a private message.
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Sorry to bring up old news but I'm having a very hard time locating a pinout diagram for the OBD connector. I'm trying to troubleshoot it since it's not able to connect to the ECU. The scanner powers up and there's 12v on the 16 pin, but I'm worried they've been moved so to some aftermarket modifications. Any ideas which pins are which for an '04 limited 4x4?
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'04 Limited V6 4x4
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03-17-2022, 11:33 PM
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#291
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Junior Member
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Join Date: Mar 2020
Location: golden, co
Age: 61
Posts: 12
Real Name: Dena
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Junior Member
Join Date: Mar 2020
Location: golden, co
Age: 61
Posts: 12
Real Name: Dena
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I am struggling looking for any help I can get. I have 2004 4runner sport v8 4wd. I was driving down the highway in traffic. My VSC trac light started to flash *that was first* after that Im not sure which was which, but my VSC off and check engine warning lights came on. It freaked me out. I went and had the codes read at local auto zone. P0455, P0446, P0441, P0455, P0441, P0446. After reading a bunch, I replaced the gas cap. Check engine went out immediately. I cannot get the vsc trac and vsc off lights to reset. I tried zpc with no luck. When I start calibration and the vsc light is supposed to illuminate after open and close 4 times or more. It won't illuminate. I have done everything ive read and nada....any suggestions?
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03-17-2022, 11:34 PM
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#292
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Junior Member
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Join Date: Mar 2020
Location: golden, co
Age: 61
Posts: 12
Real Name: Dena
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Junior Member
Join Date: Mar 2020
Location: golden, co
Age: 61
Posts: 12
Real Name: Dena
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Quote:
Originally Posted by MicaBlue03
If you suddenly have the "VSC TRAC" and "VSC OFF" lights in your dash, this post may help you fix the problem yourself. The information here applies to 4th gen 4Runners that use the ISO protocol rather than the newer CAN protocol for their OBDII interfaces to code readers, ECU programmers, hand-held testers, etc. The OBDII interface includes several different protocols (methods of digital communication) and they all use the same physical connector, though with some different pins. The connector is located at the bottom of the dash on the driver's side and in the 4Runner it's covered by a small black cap.
4Runners switched from ISO to CAN around 2005 though this information may also apply to newer 4Runners with some modification. That is, newer 4Runners may display trouble codes and reset sensor calibration values in response to the connection of different (than earlier 4Runners) pins together than the ones described below.
Several posters have discussed similar problems, described in several different threads. I'm reluctantly starting a new one, with a more specific title (including the exact name of the two trouble indicator lights), in the hope that searchers will more easily find a solution.
The specific behavior: On startup, the "VSC TRAC" and "VSC OFF" lights come on and stay on. The ABS light may or may not come on. On subsequent starts the lights will come on temporarily as usual (as a bulb check) and then go off. They come on again and stay on as soon as the 4Runner is moved. The "check engine" light does not come on. This behavior begins after the vehicle has been hooked to some sort of OBDII code reader or engine tester or data logger, etc. Though the lights are on, no standard OBDII problem codes are detected by a regular code reader.
Cause: The code reader or other OBDII device has attempted to communicate with the 4Runner using the CAN protocol (involving pin #14) and this has caused the 4Runner to erase the "zero point calibration" numbers in its memory. Without these numbers it can't get accurate information from the yaw rate and deceleration sensors (in the center console near the gearshift) and so it disables traction and stability control functions.
The fix: Perform the "zero point calibration" procedure as described in TSB BR001-04. This procedure can be performed without special equipment such as a hand-held tester or OBDII reader. You only need the equivalent of a jumper wire to short together two pins of the OBDII connector at the right time and the right number of times between switching the 4Runner on and off. More detail is included below, leveraged from my other posts.
Why this doesn't happen every time a code reader is used: The code readers usually use the pins and protocol of the OBDII connector in a specific sequence, trying first to establish communication with the vehicle using the oldest protocol. They then try the pins and protocol of newer protocol standards. Usually the code reader would be successful in its first try at establishing contact with the 4Runner using the ISO 9141-2 protocol, and there would be no problem. However these communications schemes are not foolproof and occasionally the ISO protocol attempt fails. Then the code reader tries newer protocols including CAN (controller area network). It's this CAN attempt, which toggles pin #14 (the CAN data pin) that accidentally tells the 4Runner to erase the existing zero point calibration data. Since the 4Runner (this vintage anyway) can't communicate by CAN protocol the tester re-tries the older protocols again and eventually succeeds in setting up communication by the right ISO protocol. But by then the calibration data has been erased.
The calibration, by the way, is simply a matter of telling the 4Runner VSC/TRAC computer "your yaw rate and deceleration rate are currently zero" and to save the associated values. Then the output from the sensors can be interpreted correctly.
Detail (may be helpful if you're going to do the calibration procedure yourself): The SST (special service tool #09843-18040) specified in the service manual appears to be essentially a Y-shaped test lead and is variously called a "jumper wire" or "diagnostic check wire." It's used in this case to repeatedly connect and disconnect the chassis ground (CG, pin #4) and Ts (pin #14) terminals of the OBDII connector (referred to as DLC3 in Toyota-speak). The connection/disconnection sequence and timing are described in the service manual and in several TSBs. OBDII connector diagram and pin descriptions are in TSB BR005-03.
Since the OBDII connector is at the lower edge of the dash and pointing down (right above your left foot when you're sitting in the driver's seat) it's rather tough to reach in and do the shorting to the appropriate terminals of the OBDII connector with a test lead. Especially since you're supposed to avoid moving or shaking the vehicle when you're doing this. BTW, the OBDII connector usually has a black snap-on cover over it to keep out grit, etc.
Therefore I took a couple of pieces of insulated wire about 24" long each and taped them alongside each other, and stripped both ends. To make the wire fit securely in the (female) terminals of the OBDII connector I soldered a 3/8" length of metal (cut from a heavy paper clip) to one end of each of the wires. I chose a pin size so that would fit securely in the female terminals of the OBDII connector but wouldn't distort them. I used some heat shrink tubing around the solder joint to reduce any chance of accidental shorting.
After plugging the two pins into the OBDII connector (with the other ends held apart) I was able to hold the other ends of the two wires in my hands and touch them together at the appropriate times to connect the pins of the OBDII connector. I had a helper in the passenger seat to read the instructions from the TSB to me in sequence.
This is not very hard to do, and one need only be careful. It's easier to do with the Toyota OBDII tester, of course, and would only take 5 minutes. You might be able to get your dealer to do it gratis, but you might also be charged some minimum labor hour rate.
BTW #1: Doing the sulfur TSB or others that require the replacement or reprogramming of the engine computer or the VSC computer will also require this calibration.
BTW #2: I verified that when the lights are on the VSC and traction control are indeed inoperative. ABS is working, though.
BTW #3: Shorting other pins (such as #13 Tc) at the right time can cause the appropriate dash indicators to blink in sequence to reveal trouble codes other than the OBDII ones. A generic OBDII code reader won't give you this data, and you need the service manual (physical or online) to make sense of it. I believe there is a specific code to tell you that the zero point calibration data has been lost, but I didn't look for it.
BTW #4: In the 4Runner of this vintage the OBDII connector pins populated are 4, 5, 7, 9, 13, 14, 15, 16
[Sorry about the long post, but I wanted to include the kind of information I'd want if I encountered this problem and wanted to feel comfortable fixing it myself]
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I am struggling looking for any help I can get. I have 2004 4runner sport v8 4wd. I was driving down the highway in traffic. My VSC trac light started to flash *that was first* after that Im not sure which was which, but my VSC off and check engine warning lights came on. It freaked me out. I went and had the codes read at local auto zone. P0455, P0446, P0441, P0455, P0441, P0446. After reading a bunch, I replaced the gas cap. Check engine went out immediately. I cannot get the vsc trac and vsc off lights to reset. I tried zpc with no luck. When I start calibration and the vsc light is supposed to illuminate after open and close 4 times or more. It won't illuminate. I have done everything ive read and nada....any suggestions?
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03-18-2022, 12:04 AM
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#293
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Junior Member
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Join Date: Mar 2020
Location: golden, co
Age: 61
Posts: 12
Real Name: Dena
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Junior Member
Join Date: Mar 2020
Location: golden, co
Age: 61
Posts: 12
Real Name: Dena
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Quote:
Originally Posted by chiteaux
I simply wanted to report my experience in case it helps someone else. '04 4runner SR5 with a V6 with 242k. VSC TRAC & TRAC OFF lights were perpetually on. I wanted to get an oil change anyway, so I took it to the dealership, paid for an oil change, and the vehicle was returned to me with the lights turned off. Paperwork shows the BST SSC (Smart Stop Technology) was performed, which is a "recall" I observed on the carfax on the car before I bought the car. I paid for the oil change, but my bill shows the BST performed at a $0.00 cost.
I would deduce that if you have this issue with the VSC TRAC & TRAC OFF lights being on (assuming no other lights are on, no check engine, no ABS), if you go to the dealership and ask for this BST to be performed on your car, it might fix your issue at no cost at the dealership.
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I think you may be on to something. The VSC light on was an issue way back right after I bought my car in 2006 only it wasn't a recall yet and I paid 50.00 to have it fixed. Last year I had the ECM updated at the dealership. Then about 1000 miles ago I switched out my expensive xreas and had performance 4x4 install 5100 bilsteins. They did tell me that I had a clunk when driving it after install. My tr4 is running great, it rides really really nice....then this happens and I'm so bad the warning lights on give me anxiety bad. The 4x4 shop had said that loower control arm alignment cams are seizing and heard a clunk from the front and found sway bar bushings are warn and need replaced could that cauise all this mess?
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03-18-2022, 02:53 PM
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#294
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Junior Member
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Join Date: Mar 2022
Location: North Carolina
Posts: 3
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Junior Member
Join Date: Mar 2022
Location: North Carolina
Posts: 3
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Wow
New to the forums here, but I had this exact issue with my 04 4Runner. Sometimes I'd get it serviced and I'd have to take it back because of those two lights.
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07-29-2022, 09:25 PM
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#295
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Junior Member
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Join Date: Oct 2017
Location: Winston Salem, NC
Age: 62
Posts: 5
Real Name: Bruce
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Junior Member
Join Date: Oct 2017
Location: Winston Salem, NC
Age: 62
Posts: 5
Real Name: Bruce
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One cause & fix for "VSC TRAC" & "VSC OFF" lights, Zero Point Calibration
I got super lucky after tracing down many threads on the ABS/VSC TRAC/VSC OFF lights and not shifting out of Park....brake light switch connecter was not connected well..Zero $$, just a little humiliation..I'll take it! All is working right and 4WD engages correctly as well. Sometimes the simple check pays off.
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Bruce M
Winston-Salem, NC
2002 SR5
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01-18-2023, 06:01 PM
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#296
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Junior Member
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Join Date: Nov 2022
Location: Southern California
Posts: 2
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Junior Member
Join Date: Nov 2022
Location: Southern California
Posts: 2
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OBDII Tool - WORKS!
Just reviving this old thread after I stumbled upon a device I can confirm works on 4th Gen 4Runners. I'm not in any way affiliated with the site but I reached out to the owner of the site which is for the old Lexus SC 430. After he looked at the step-by-step info in the TSB he confirmed it should work and even offered a refund and to pay for return shipping if it didn't work.
This guy sells a device that you plug into the OBDII reader when the truck is off. Turn the key to the ON position. Wait for the lights to flash. Turn the truck OFF. Remove the device. Profit.
I used it on my 4th Gen today and now it's a new tool in my toolbox just in case I need it. I've had this VSC Trac issue about 3x and this makes fixing it a breeze. It's about ~$10 shipped.
Enjoy!
VSC reset calibration tool | SC430Mods
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03-09-2023, 03:12 PM
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#297
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Junior Member
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Join Date: Sep 2011
Location: Tucson, Arizona
Posts: 1
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Junior Member
Join Date: Sep 2011
Location: Tucson, Arizona
Posts: 1
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Toyota service bulletin BR005-03 works perfect on a '04
Thanks to MicaBlue03 original post. The service bulletin and a couple leads with short sections of paper clip worked perfect. I had a TPMS sensor replaced and the "mechanic" messed with the OBD input with a handheld tool. It messed up the zero point calibration and the lights would not go off. Rather than deal with the "stealership", I made a jumper tool and the process worked perfect. Thanks again for MicaBlue03 offering a solution to a problem that can still happen on a 20 year old vehicle.
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05-08-2023, 01:09 AM
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#298
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Junior Member
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Join Date: Oct 2021
Location: Sacramento, CA
Posts: 2
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Junior Member
Join Date: Oct 2021
Location: Sacramento, CA
Posts: 2
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I’ve got the VSC light on. I tried to do the Zero Point Calibration, but my OBD connector pin configuration is very different than all the ones I’ve seen in various forums. Can anyone tell me how to find the TS and CG pins? Maybe tell me the colored wire behind the connector so I can match it on my vehicle. Notice I only have 6 pins/wires, while others have 9-10.
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2021 4Runner SR5 Premium
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05-08-2023, 11:40 PM
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#299
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Member
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Join Date: Mar 2013
Location: Central IL
Posts: 449
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Member
Join Date: Mar 2013
Location: Central IL
Posts: 449
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Quote:
Originally Posted by 4by4run
Can anyone tell me how to find the TS and CG pins?
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That is very strange that you have so few wires in the OBD2 port. One would think that as technology advances, that thing would be chock full-o-pinouts for various things.
I did a little snooping and found that as of 2020, there are no Ts and Tc pinouts in the OBD2 port.
Source:
OBD-II change in 2020 - Zero Point Calibration Issue
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06-05-2023, 01:23 PM
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#300
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Junior Member
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Join Date: May 2023
Location: San Antonio
Posts: 5
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Junior Member
Join Date: May 2023
Location: San Antonio
Posts: 5
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Quote:
Originally Posted by Falkon
Thanks a bunch MicaBlue03.
Glad you could clarify the alternatives to some of the special tools - SST. Could you show a picture of how your wires were plugged into the DLC3, please?
To further assist with your writeup, I have attached the TSB, BR005-03, you mentioned in your script. A schematic of the DLC3 unit indicating the required pins TS and CG with the re-calibration instruction is shown on page 7 of the attached TSB.
Good Luck.
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does anyone have pin layout for a 2012 4runner SR5 OBD2 port? I'm afraid ....one says #4 another says #4 & #14 another shows #4
... PLEASE HELP (zero point calibration with downhill assist)
Praying I didn't ruin my truck.F#@&.......
3 scanners 2 Bluetooth adapters , 3 clock springs later and I still cant seem to calibrate after simple clock spring replacement ONLY THING WRONG WAS MY HORN and this was after dealer completed airbag recall. refused to look at it for less than 170$
I'm smart and figured I could do myself given right tools!!!! and PARTS.....last time after given 2 wrong parts. and told I was stupid and put it in wrong.NO I DIDNT
..now I refuse not to know how to fix or at least diagnosed my own damn vehicles...these so called experts selling aftermarket clock springs ruined my 4runner..... I ordered correct then it took them 4 weeks to receive another which was again wrong item. power steering lights off abs light off and got all to seem perfect ....
TCS activating now and abs ingages at flashing light begins flashing brakes grinding at random times driving down highway/!!!!!
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