The abs tc and speedomoter coming on and off intermittently. as well as check engine light

first thing is to read the fault codes as none of those faults are connected
could be faulty connections to ECM or ECM itself but the fault codes will show each problem

If the abs light is on there is a code set in the abs system. When a code sets it disables tc and abs. You need to have it scanned for codes

Your abs and traction control lights should only come on when you start to slide while breaking(ABS), and when your wheels spin in place when excelerating(TC). If those 2 things don't happen, which with some people they never do, you should never see the lights come on. Only when those mechanisms are in use do the lights come on. And they will always flicker as that is what abs and tc are, intermitant surges to break up the constant. ABS does this for obvious reasons...anti lock break, so when you slide, the abs "taps" the breaks in short bursts so they don't lock up. TC "taps" the exclelrator when it slips. Those "taps" are what trigger the lights on your dash, which is why they flicker and don't stay on.

Most likely problem is the neutral safety switch coming apart. There may be additional problems. Get a scan of the computer and post the trouble codes.

seems like ur starting to have an intermittent fault,which will eventually leave the light on all the time.u need to check ur ecm for any stored codes chances are their in there.if they come on ur car is still drivable,but without abs action (inop abs) and without traction control which would cause wheel slippage under certain conditions. car is drivable but a diagnostic test should b done to the system asap.

Your ABS system has detected a fault in the system. When that happens, the TC is automatically turned off. You will have to have the ABS diagnosed and repaired before the TC will come on again.
Good luck.

Speedo and traction control; check wheel sensors all 4, clean and blow the sensors and reactor rings.
Is ABS light on as well? if so, you need a EBTCM module mounted to the brake ABS pump facing the battery. There are places in the US that rebuild them with warranty for under $150.

You have an engine code. When engine code sets it disable the traction control & tc light comes on. Go to auto zone they will check for codes for free. Your can buy your part & install your self if simple. If you need special tool they have loaners

some electrical after market comonent has been attached to vehicle and causing the problem

We were having this problem...have your wheel bearing checked out. There was a sensor in the drivers side wheel bearing...once we replaced it (because it was going out) the ABS and Traction Control warning lights stopped coming on.