My 2006 chey equinox lx

Do the cooling fans come on ? Your vehicle should have two fans controlled by The PCM - engine computer energizing three different relay's for low and high speed .

TCS light is for electronic throttle control . This will set a DTC - diagnostic trouble code ! Your best bet is have it taken , towed to a qualified repair shop .

"Extensive work" not. Try replacing the injector on #2 cylinder.

If you can get the actual codes we can better advise you.

I have a 2006 chevy equinox and when i started it it had a quiet tick which was a completely new development. As I drove it became very loud so we pulled over turned it off...started it again after a coupld minutes it started but noise was still there, checked the oil it read low so we added two quarts then it wouldn't start meanwhile no smoke showed no burning smell didn't overheat and now lights came on.

New battery

Replace your 3rd

TURN THE IGNITION KEY TO RUN WITH THE ENGINE OFF.FULLY PRESS AND RELEASE THE ACCELERATOR PEDAL THREE TIMES WITH IN FIVE SECONDS.YOU HAVE TO DO THIS MORE THAN ONE TIME.ITS NOT GOING TO RESET FIRST TRY BUT DO THIS PROCEDURE.UNTIL THE CHANGE ENGINE OIL LIGHT WILL FLASH WHILE THE SYSTEM IS RESETTING.TURN THE KEY TO OFF.WAIT A FEW SECONDS.START CAR UP TO SEE IF CHANGE OIL LIGHT COME BACK ON.IF YES YOU HAVE TO TRY THE RESET PROCEDURE AGAIN.

could be a fault in your alarm

alarm remote needs new batterys