11-24-2007, 01:12 PM
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#1
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Junior Member
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Join Date: Nov 2007
Location: Canoga Park, C.A.
Posts: 5
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Junior Member
Join Date: Nov 2007
Location: Canoga Park, C.A.
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VSC Trac and Trac Off lights
hi,
I have a 2003 SR5 4runner. I just took it to the dealer to get a valet key done and programmed. When I got the car back I noticed that the VSC Trac and Trac Off lights are on. So I turned off the car and then turned on the car. The lights went away but as soon as I put it in gear and start rolling a few feet the lights come back on again. I tried in reverse and Drive the lights come back on only when the car is in gear and rolls.
Can anyone please help me? I have an appointment with the dealership and the car is still in warranty since i bought the car 5 days ago used, but the car still drives fine with the lights on. Can anyone please help?
Thanks in advance.
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11-24-2007, 01:26 PM
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#2
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Elite Member
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Join Date: Jan 2004
Location: Hoodbridge, Virginia
Age: 43
Posts: 5,078
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Elite Member
Join Date: Jan 2004
Location: Hoodbridge, Virginia
Age: 43
Posts: 5,078
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If this happened right after the dealership was fiddling with your truck, I'd blame it on them and ask them to fix it.
Is the CEL on also? If so, this could be caused by something as simple as the gas cap not on tight enough. Tighten it until it clicks a few times.
It could also be caused by an O2 sensor failing. Or possibley an ABS sensor gone bad since VSC utilizes the ABS system.
All of this could have been found just by searching. It'll save you some time next time instead of waiting for a response
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11-24-2007, 03:01 PM
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#3
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Junior Member
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Join Date: Nov 2007
Location: Canoga Park, C.A.
Posts: 5
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Junior Member
Join Date: Nov 2007
Location: Canoga Park, C.A.
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The CEL light is off. its just the VSC and Trac off light. i'm gonna bring it back on monday since monday is my day off.
Thanks. i appreciate it :]
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11-25-2007, 10:35 AM
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#4
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Elite Member
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Join Date: Jan 2004
Location: Hoodbridge, Virginia
Age: 43
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Elite Member
Join Date: Jan 2004
Location: Hoodbridge, Virginia
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Try this before taking it in. Pull the negative terminal for a few minutes and then reconnect. This will reset the computer and erase the trouble codes. If there is still an issue lights will come back on.
You'll have to reprogram your radio stations and reinitialize the windows, but nothing hard.
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11-25-2007, 11:15 AM
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#5
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Junior Member
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Join Date: Nov 2007
Location: Canoga Park, C.A.
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Junior Member
Join Date: Nov 2007
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i already tried that the lights still came on... they go away after you restart the car but they come back on when i actually drive the car.
thanks though :]
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11-25-2007, 01:20 PM
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#6
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Elite Member
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Join Date: Jan 2004
Location: Hoodbridge, Virginia
Age: 43
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Elite Member
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Well let us know what the dealership finds. It seems fishy that this happened right after you took it to them to get your keys programmed.
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11-26-2007, 11:42 AM
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#7
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Junior Member
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Join Date: Aug 2007
Location: Long Island, NY
Posts: 10
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Location: Long Island, NY
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Im having the same exact problem as we speak with my truck, let me know what the dealership says......
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2003 4Runner Limited V6 4x4
<br>
Titanium Metallic / Stone
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11-26-2007, 06:13 PM
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#8
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Junior Member
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Join Date: Nov 2007
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okie! i just got back from the dealership... and they fixed it.
The VSC Trac and Trac Off light came on because the Yaw rate wasn't calibrated.
So, they performed yaw rate zero calibration and the lights are no longer there to bother me :]
Thanks to those offering assistance :]
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12-03-2007, 12:24 AM
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#9
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Senior Member
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Join Date: May 2005
Location: Denver
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Anyone know how the 'yaw rate' becomes uncalibrated?
Seems to me, once its calibrated............its calibrated, no?
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2005 4X4 V8 LTD 4Runner Black
Driver's side upper assist handle, tail/stop bumper light mod, Flowmaster 50 suv with side exit exhaust and Valor tip, 20% tint on fronts and 27% add'l tint on rear window, DIY blacked-out headlights, Stainless door sills, VIP Plus w/GBS alarm, OBX pedals, Can. hood protector, ash tray kit, '06 LED tails, T&H Euro bar, OME lift, Spidertrax spacers, LT275/70R17 Cooper AT3s, HIR bulbs in LB and fogs, VSC mod, AFE Pro Dry S filter, White LED cluster and HVAC
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12-03-2007, 12:43 AM
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#10
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Junior Member
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Join Date: Nov 2007
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well mine became "uncalibrated" after they programed the key. So maybe the tech reset the yaw.
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12-03-2007, 03:41 AM
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#11
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Join Date: Dec 2004
Location: Seattle
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Member
Join Date: Dec 2004
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Un-calibrating the sensors
I've been dealing with the same problem and learning a bunch about this lately. I need to find time to write up a full post on it, but the short answer is that the dealer's use of the "hand held tester" on the OBDII port to program a new key accidentally cleared the existing zero point calibration of the yaw and deceleration sensors. It's not that hard to do.
Fortunately it's also not hard to fix for yourself. See TSB BR001-04 and the last page, where they tell you how to do a new zero point calibration with only a jumper wire (they give the SST number 09843-18040, but it's just a jumper wire and not the hand held tester).
I just did this calibration myself, and fixed my problem. I'll try to write up a full explanation (new thread?) in a few days.
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12-04-2007, 10:04 AM
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#12
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Junior Member
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Join Date: Jul 2006
Location: TX
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Re: Un-calibrating the sensors
Quote:
Originally posted by MicaBlue03
I've been dealing with the same problem and learning a bunch about this lately. I need to find time to write up a full post on it, but the short answer is that the dealer's use of the "hand held tester" on the OBDII port to program a new key accidentally cleared the existing zero point calibration of the yaw and deceleration sensors. It's not that hard to do.
Fortunately it's also not hard to fix for yourself. See TSB BR001-04 and the last page, where they tell you how to do a new zero point calibration with only a jumper wire (they give the SST number 09843-18040, but it's just a jumper wire and not the hand held tester).
I just did this calibration myself, and fixed my problem. I'll try to write up a full explanation (new thread?) in a few days.
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Hey Mica,
That will be very nice of you.
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01-08-2010, 03:17 AM
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#13
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Join Date: Dec 2009
Location: Montreal Canada
Age: 48
Posts: 738
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Member
Join Date: Dec 2009
Location: Montreal Canada
Age: 48
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VSC TRAC and VSC OFF light ON but NO CEL (Check Engine Light)
[QUOTE=guitarguythingy;273215]hi,
I have a 2003 SR5 4runner. I just took it to the dealer to get a valet key done and programmed. When I got the car back I noticed that the VSC Trac and Trac Off lights are on. So I turned off the car and then turned on the car. The lights went away but as soon as I put it in gear and start rolling a few feet the lights come back on again. I tried in reverse and Drive the lights come back on only when the car is in gear and rolls.
QUOTE]
I'm experiencing this exact problem right now. In this thread Micca mentions that he would write up a full post on this subject. I've found the post and it can be found at the link below.
http://www.toyota-4runner.org/proble...ff-lights.html
Hope this makes it easier for anyone else to locate the information they need. I just got my 4runner back from a Toyota dealer for a rear door issue. So don't know how my door is linked to my VSC....anyhow... I'm not sure if they did, but I suspect that the Toyota techs will always hook up a code reader just for the sake of verifying codes....
Read Micca's post and you'll understand the significance of the code reader in relation to this issue and a do it yourself at home fix. I'm going back to the mechanic 2morrow armed with this information and hoping to get them to do the zero fix for free...
Also some of my other research on various posts has said that while VSC is off, ABS is still active. I will verfy this 2morrow on a patch of ice. I'll post my outcome with the fix and verification of whether ABS is still active.
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2003 4Runner Sport 4.7 V8 Silver/Grey - Fr/Rr ARB Locker - OME 885/895 - LR UCA - BFG KM2 255/80/17- RCI Skids - Demello Sliders - Bud Hidden Winch- Runva Winch - Synthetic oils- Trail Stripes - Two Baby Seats...
1984/86 4runner In Progress....... V6 swap - High Steer - 33" MTZ - 4.88 Gears - welded rear - ARB front - axle gaussets - Diff covers - Longfields - 4.7 crawler - Titan Winch http://www.toyota-4runner.org/classi...ner-build.html
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01-16-2010, 02:35 AM
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#14
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Member
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Join Date: Dec 2009
Location: Montreal Canada
Age: 48
Posts: 738
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Member
Join Date: Dec 2009
Location: Montreal Canada
Age: 48
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!! Update !! Vsc trac lights !! Update !!
Ok, so I will add something else that other seem to have reported that would have causeed this issue. Having a new key programmed. So I would have had 2 things done to my 2003 4runner that seems to cause this problem. VSC TRAC and VSC OFF Led's are lit up on the dash. But NO Check Engine Light and NO ABS light.
An ODBII scanner was connected to my truck and also a new key was programed for it.
Brought it back to Toyota. Since it is a 2003 it is out of warranty. But I tried to explain these situations and they refused to acknoledge it, or look it up or research it for themselves. Anyways they ended up charging me 94$ for the Zero Calibration Reset. I got them to bring it down to on 64$ not that much better because I think they should have done it for free since it is a glitch and should be part of their procedure to reset the calibration on this particular model..... It's been a few days since the reset and the lights have come back on.
The Toyota service bulletin TSB BR001-04 shows how to reset this with the Toyota scanner and manually by shorting 2 pins if you don't want to bring it to toyota. This bulletin can be found by a quick internet search.
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2003 4Runner Sport 4.7 V8 Silver/Grey - Fr/Rr ARB Locker - OME 885/895 - LR UCA - BFG KM2 255/80/17- RCI Skids - Demello Sliders - Bud Hidden Winch- Runva Winch - Synthetic oils- Trail Stripes - Two Baby Seats...
1984/86 4runner In Progress....... V6 swap - High Steer - 33" MTZ - 4.88 Gears - welded rear - ARB front - axle gaussets - Diff covers - Longfields - 4.7 crawler - Titan Winch http://www.toyota-4runner.org/classi...ner-build.html
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01-16-2010, 05:19 PM
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#15
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Senior Member
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Join Date: May 2005
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Were you able to reset it with shorting the two pins?
__________________
2005 4X4 V8 LTD 4Runner Black
Driver's side upper assist handle, tail/stop bumper light mod, Flowmaster 50 suv with side exit exhaust and Valor tip, 20% tint on fronts and 27% add'l tint on rear window, DIY blacked-out headlights, Stainless door sills, VIP Plus w/GBS alarm, OBX pedals, Can. hood protector, ash tray kit, '06 LED tails, T&H Euro bar, OME lift, Spidertrax spacers, LT275/70R17 Cooper AT3s, HIR bulbs in LB and fogs, VSC mod, AFE Pro Dry S filter, White LED cluster and HVAC
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