My 2002 4 runner check engine light trac off light and vsc trac light are on. i took it to a mechanic and he said it was throwing off transmission codes. i know there is something wrong with my trans but i dont know what? it shifts very rough but only above 50 mph. i was told it was my overdrive shudder but what can i do to fix it? the mechanic gave me this lube guard stuff. i put it in yesterday and now my truck is running worse and now my check engine light is blinking. can some one help?

Hello, the check engine light will also cause the other lights to turn on, those will usually go off when the cause for the check engine light is fixed or the check engine light is cleared by disconnecting the battery. The P705 is a transmission fault code, it refers to a problem with the transmission range sensor, this is part of the neutral start switch located on the side of the transmission where the shift selector attaches, it has a large connector with wires on it, these connectors can corrode so remove it can check and clean as needed or if nothing like that can be found replace the neutral start switch.

Check engine light, VSC TRAC & TRAC OFF lights - Toyota ...

www.toyota-4runner.org/.../4164-check-engine-light-vsc-trac-trac-off-li...
Jun 6, 2004 - I just bought it, and a few days later the check engine light, VSC TRAC, and TRAC OFF lights all came on. I took it to a dealership and was told ...

VSC and TRAC OFF lights came on? - Scion xB Forum

Hello, the vsc/trac lights will turn on whenever the check engine light turns on first, this is a fail safe function,vsc and trac are disabled as soon as the check engine light turns on so the check light needs to be diagnosed first, you will need to have the onboard computer scanned for diagnostic codes for the engine control system, these are usually a letter fllowed by some numbers, for example a P0301 code would be an engine misfire on the #1 cylinder. If there is an Autozone store or other autoparts vhain store like advance auto, pep boys etc give them a call and take the truck there, they usually help you get the trouble code numbers at no charge, after you have this information post a follow up with the results and I can help you with a solution.

VSC lights always go on during a "Check engine" period so just get the engine fault code and DIY or go to a TRUSTED mechanic (or someone you trust goes to).It is likely an emissions problem.

CUT KEY OFF CK IT TOMORROW IT WILL PROBLEY RESET ITSELF WHERE YOU PLAYING WITH IT THEN IT HAPPENED

Battery was diconnected for 1 minute and then reconnected. All lights are off.

Find out why the light is on and fix it. That should aleviate the light problems.

NEED TO HAVE COMPUTER CHECK FIND WHAT CODE MADE THE ENGINE KLIGHT COME ON.. AND HAVE IT FIXED,, VSC LIGHTS COME ON BECAUSE THE COMPUTER DEACTIVATES THE VSC AS A SAFETY FEATURE WHEN CK ENGINE LIGHT IS ON

you need to have the computer scanned for codes and see what area is having problems. the vsc lights will come on when the check engine light is on.

Those lights always come on whenever the check engine light is on.It could be from the gas cap not being tight enough or an air hose in the engine compartment coming loose. I recommend bringing your vehicle to someone that can read the codes and reset the lights for you. The codes will narrow down what the problem really is.