for what ever reason the books on MOPAR have a number of things that aren't right, and with bad info it can cause problems when trying to trouble shoot.
as LATECH said, the ASD relay also powers the fuel pump & the 2 second power up primes the fuel system.
the 2 second power up at the ignition coil is normal.
some will even give 1 ignition pulse at key on which can be quite a surprise if you happen to have the ignition coil wire off & are too close to the terminal when the key gets turned on.
with a decent scanner, there are a number of tests you can do that can be very helpful in trouble shooting such as triggering the ADS relay, injectors & ignition coil key on engine off.
i used a MT2500 for years which you can pickup now for cheap.
a good one may not be a bad investment.
just don't use a MT2500 trying to repair MOPAR ABS.
another problem i ran into with some MOPARs is using aftermarket sensors. i spent 2 days diagnosing a no start on a mini van caused by the A/M crank sensor we put in as a preventative measure during a trans O/H.