2011 yaris not starting

[yippiiyaris]

Hi everyone,

I have been doing a lot of maintenance on my 2011 base model 4 door hatchback. Over the last 2 months I have put in a new battery, alternator, belt, spark plugs, oil & filter changed, neutral safety switch replaced, and now the last thing replaced was a crankshaft position sensor. I got a code of P0335. First I tried clearing the code and see if that helped but then the car would not start, so then I bought the crankshaft position sensor and installed it.

I think that may have been unnecessary as now the car only flashes and beeps and buzzes but it will not try to turn over at all. (Same thing as when I cleared the error code.)

I have charged up the battery and most things work, i.e., blower motor, radio, lights. However when the car is turned to on, thats when it starts going all haywire. I hear clicking, buzzing, the dash lights go on and off, but no attempt to start when I try to turn the key to start it.

When I try to test it with the OBD tester it comes up with no faults.

Anybody have suggestion for what to check next?

Starter, ECM ECU???