2016 Tundra VSC light stays on.

Hi, I have a 2016 Toyota Tundra SR5 4wd. My VSC light stays on all the time. No other lights. I am not able to shift to 4wd at all. I have tried different methods of resetting it such as pressing the button for 3-5 seconds, then pressing it once, no change. I have disconnected the battery for an hour, still no change. It only has around 55,000 miles on it. Is there something else I should be trying before a purchase a diagnostic tool to see what codes it shows? Thanks for any assistance, Jody

 

Check your front ABS sensor in the upright...see if any wires are dangling or if the sensor itself isn't seated properly...there's a 8mm bolt that holds it in but they can be finicky when loving snow and mud...

 

Thanks for the reply, I just checked both front ones and they appear to be in good condition with no wires hanging or exposed...The ones on the back appear to be 2 gray sensors and they also appear to be in good shape...I realize I may need to put a scanner on it and see what codes appear...Any recommendations on a good scanner that won't break the bank? Thanks again, Jody

 

Many auto parts stores will scan your vehicle for free and provide the codes.

 

Thanks for the replies, I'll get it scanned.

 

I got my truck scanned and it came back with "Lost communication with module under seat" with the code U0114 Can anyone give me any insight on this, thanks

 

I realize that code u0114 can be caused by a faulty Four-Wheel Drive Clutch Control Module, just wondering if anyone else has had this problem...No ABS light, just the traction control light is on steady with no 4wd. Thanks

 

4WD ECU failure is what it sounds like. Correct for that code and no ability to get into 4wd. Keep than in mind, I think first I would check all related fuses, under hood as well as under driver dash, look for simple things first.

Not sure about 2016 but on the earlier gen trucks it was located under passenger side kick panel. Probably same on the 2.5 gen or maybe behind glove box. Not sure how to test if that ECU is bad or not.

Lastly, how old is your battery? Battery going out can cause all sorts of weird issues, warnings, alerts...when the truck systems dont get the required volts.

See if any of this helps.

 

Battery is 2 years old, checked all the fuses, along with the wiring under the passenger seat but to no avail...I will research on how to check the ECU, thanks for the reply, Jody