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your add note goes w/o saying but doesn't hurt to remind people.
VSC light problem has never reappeared for me since 2007 and I've never taken our Sequoia to the dealer like other people have posted on this forum.
Btw, just had my frame inspected at a Toyota dealer in MD. No need for a replacement. The consultant even allowed me to inspect the frame. He just confirmed what my mechanic told me. Glad we haven't gotten much snow or ice in my 10 years of ownership.
In February of 2013 the TRAC, ABS, VSC, and Check Engine lights all went on, on our 2006 Toyota Sequoia. The following codes were generated: C1223 ABS Control System Malfunction, C1251 Pump motor locked/Open Circuit in pump motor ground, and C1247 Stroke Sensor. The dealer recommended and we replaced the VSC Computer Module at a cost to us of $1,059.00. The part alone was $653.00.
It is just under six months and the same faults C1223 ABS Control System Malfunction, C1251 Pump motor locked/Open Circuit in pump motor ground are being reported one more time. This time around the dealer is claiming that the "actuator" needs to be replaced, part number given is 440500C100.
My recommendation is to file a complaint to document this flaw in Toyota Sequoias.
Obviously the call cost them a lot less than having to pay a mechanic's hourly wages, experienced or not.
I was under the impression that when you paid them to service your vehicle, which they gladly accepted, it would be returned riding as smooth as before if not better. Is this a common problem for this year make and model vehicle, or just this dealership?
The front wheel drive system though makes sense. Gosh! I'm wondering how they managed to screw that up with a simple 90k service. Toyota cars and trucks were known for their reliability, and their mechanics used to have such a good reputation.
Can you help?
Our's is a 2003 Sequoia so don't know if the design changed on future models but it's worth checking out.
The symptoms we experienced when the VSC light came on was that the ABS came on erratically and automatically while driving making it unnerving to drive. I also read some posts here before taking it anywhere and based on some repair costs people were posting, I decided to look into it myself before taking it in.
It did not turn out to be a computer problem.
For our Sequoia, what I did was to clean off the sensors (they are magnetic) on all four wheels. The rear wheel sensors in particular.
On the 2003 model, the magnetic nature of the sensors attract metallic shavings from the disc brake wear.
I believe the sensitivity of the sensors are affected due to metallic shavings buildup so even if you replace the computer, the root cause of the problem still exists.
It's been 6 years since I cleaned the sensors and the VSC issue has not reoccurred. Now the cleaning of the sensors is a matter of maintenance schedule.
Here's what I did:
- Take off the rear wheels.
- On the back side (inside) of the wheel hub, you will see some electrical lines going in to the wheel hub.
- Take off the bolt holding in the sensor ( I think 10mm) and pop off the sensor. Examine the tips of the sensors for any metal flakes on the magnetized tips, clean them off and then replace.
- Reset your computer by disconnecting the battery wire and then reconnect.