Sorry,,, WTS = Wait To Start
It's thought of (but Not really) the Glow Plug Light and it should come on for like 15 seconds to show the computer is running
Is the Tach needle rising slightly on the starter? (shows the PCM "sees" it's turning over and that the CPS (CrankPositionSensor) is working - a common failure.
New batteries does not mean it's cranking "fast enough". The computer needs to see a minimum of 100rpm to trigger the injection system and start. Also needs to see a high enough voltage too, in a 2000 something over 10v.
If it's "sputtering that's a good sign though. Make sure the fuel bowl refills by draining and turning the key on to know you have fuel delivery. Lack of it would act exactly as you describe. Hearing the fuel pump running is NOT the same as confirming you have fuel delivery. Look above the pass ft tire, you'll see a 3/8" metal tube, against the motor that ends there, it's the drain for the bowl (yellow lever you slide to the side). Get a cup, open the lever, drain the fuel bowl, look at the fuel, close the lever. Then, turn the key to the ON position (should hear the pump) for 15 secs. Drain the fuel bowl again, whaddya got?
Gotta go, Good Luck