[teamgomez]

This has been naggin at me and wanted to hear if this is just too coincidental-

Took '04 Seq in for water pump, timing belt, tranny/diff/radiator flush at 84k miles. Get it back and 2 days later I pop a CEL followed 1 sec later by TRAC OFF/VSC lights. Take back to dealer am following day and they say skid computer is Tango Uniform and give me a 1200 estimate to repair. I ask if ABS is operable, get the thumbs up, and figure 50 cents of black tape will solve the light problem until I recover from the $1300 paid to do the preventive maint they did 2 days ago.

Then I did what we do with the flight computers in a fighter jet- unplug and reinstall. So I pulled the harness off for a minute (key off) and reinstalled. This resolved the lights and they have stayed off for 500 miles/10 days.

Curious to see these lights w/in a day of dealer service...not saying it was sabotage by the dealer but wonder if the software has a bug that can be stirred by the dealer mucking with the OBD...

At least there is now a possiblity for TRAC OFF/VSC light reset!!!

 

[FlatRateTech]

Did they tell you what the DTC was?

 

[spinn]

which harness were you referring to that you pulled?

I've been running with my VSC/Trac Off lights on since I bought mine used in Feb. Everything else runs fine. Wanted to change brakes, struts, and get an alignment before I actually tried to do a Zero Point calib.

 

[teamgomez]

Memory (albeit like that of a steel sieve) recalls a 12xx DSC but not sure (paperwork in 19k lbs of household goods in a move right now).

I pulled the harness off the skid computer that is on the passenger side of the engine compartment that has all the brake lines running into it (like 7 of them?). So far (a month and 1100 miles later) this appears to have done the trick.

Let me repeat this- pulling the harness off and reinstalling fixed the VSC/TRAC OFF lights.

Our satellites have bit flop error nearly every time passing thru the S. American Anomoly (that's why we turn them off there in a low earth orbit)and while I can guarantee my Sequoia was not 400 kilometers above S. America, I will not rule out a 1 pretending to be a 0 and tripping the bit error code....FWIW....