Check Engine and Check VSC system - Toyota Nation Forum : Toyota Car and Truck Forums

chanduyaar · 10-01-2011, 11:36 AM

Hi guys,

@13300 kms My toyota sienna surprised

me with check engine lights and Check VSC system message. I contacted dealer immediately. Finally they diagnose the problem and ordered new Computer from toyota. Thankfully my van is still under warranty.

I am very upset with whats going to happen after my warranty expires

.

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sienna2011 · 10-02-2011, 12:54 AM

I had this at 1k (3 wks after I bought my brand new SE). Well, actually first my van wouldn't start and it had to be towed to the dealership. The battery was replaced and when I was picking it up the dealership actually didn't notice that it had the same VSC message and the turn lights don't work. They gave me a loaner car and and my van was finally fixed the following day. Service rep said it was a faulty battery (dead cells) and they also replaced a 10A fuse.

chanduyaar · 10-02-2011, 07:37 AM

Dealer said they never saw this problem in 2011 sienna,but agreed they saw it many pre 2011 toyota models. Tuesday they are changing the ECM/ECU, I hope it will fix the problem. My battery is fine and my van is still in drivable condition.

Quote:

Originally Posted by sienna2011

I had this at 1k (3 wks after I bought my brand new SE). Well, actually first my van wouldn't start and it had to be towed to the dealership. The battery was replaced and when I was picking it up the dealership actually didn't notice that it had the same VSC message and the turn lights don't work. They gave me a loaner car and and my van was finally fixed the following day. Service rep said it was a faulty battery (dead cells) and they also replaced a 10A fuse.

akphs · 10-02-2011, 10:00 AM

Quote:

Originally Posted by chanduyaar

I am very upset with whats going to happen after my warranty expires

.

I don't understand this statement. After the warranty expires, you'll have a newer ECM than you would have if the problem hadn't occurred. Nothing lasts forever; you're ahead of the game.

If, OTOH, this vehicle has some chronic electrical problem, you'll know it by then and unload it, eh?

chanduyaar · 10-04-2011, 06:20 PM

Today dealer changed the ECU. Stills check engine, Trac, VSC system check are ON. They told me that they are going to order new o2 sensors and ??? whell sensors. I hope it will fix the problem.

Biggoldfish · 10-05-2011, 08:14 AM

Hopefully, you'll get this problem solved before your warrantee runs out. Please keep us posted.

MatrixPC · 10-05-2011, 01:15 PM

Time to buy extended warranty

csayers · 10-07-2011, 04:18 PM

I had this problem with my 2008 RAV4 V6. In my case, Lost AWD capability and Cruise control also. Turned out it was a $400 Air/Fuel Ratio Sensor (Not O2) Located right on exhaust Manifold, and was told these are problematic from Time to time. I wonder if it is an extreme Cold issue, I am from Alberta, Maybe too much expansion / contraction in our climate?

chanduyaar · 10-11-2011, 07:25 PM

Finally got fixed. Today O2 sensors (front and back), TPMS sensor changed and all lights including Check VSC system gonne.

So here what the dealer did:

Changed New ECU/ECM ...didnt fix the problem. He ordered o2 sensor and TPMSensor and installed today.

Biggoldfish · 10-12-2011, 09:21 AM

Great to hear you got things sorted out. Now you have new warrantied hardware!