Hi SuperDAve!!
its a 1zzfe engine and yes you are right, its just the standard lights check the car does each time you move the key to IGN2
however it remember the last DIY i made
Oil or Coolant.... must be only the dealers can clear them somehow..
Umm, those lights always come on when you turn the car to ON, just as in every car. Check engine light, oil pressure light, battery light, ABS (if you have it), airbag etc always flash on startup, it's programmed into the ECU as a quick check to make sure everything is cool. It is only if them come on whilst the engine is running that a real problem is present
The only time it might be a bit different is for oil pressure etc immediately after an oil change, it takes a few seconds for the oil to circulate so the oil pressure warning light will be on whilst the engine is running, but only for a couple of seconds or so.