New battery but still acts dead - Does computer need to be reset?

CAR STARTS RUNS AND DRIVES.
SO ONLY THE IP CLUSTER FAILS.
next is check all fuses, for sure to cluster. 4 fuse run it. or more. and PTC fuse 2. skip no cab or engine b ay fuses check them all first.
SPEED CONTROLS MEANS ;CRUISE DEAD
WELL LEARN THAT CRUISE WORKS ONLY IF ALL KEY THINGS WORK EVEN BRAKE LAMPS.
FORGET CRUISE TO LAST, fix this only LAST.
cruise can never work if speed is failing VSS for any reasons.

what "NO BUS" means ,I can not guess this,at all.
so odometer is dead but shows what/
blank, -------,.------,?????? or what be clear on this.
all gauges are dead, that means the IP cluster brain can noT communicate.
any scan tool used here OBD2 you will see what fails
it sure will but every poster here 99% fears scan tools
not sure why at all. me.?

start car now and and idle it
use DMM meter measure battery volts
13. to 15vdc is a MUST, if not alternator is dead or its fuses blow or gee both.
if true stop and fix this first or computers in the car will lie to you and go quite mad.
this test is on page 1 of all modern cars chapter electronics failing and testing
the battery must be fully charged
and a good battery
and alternator works fully. tested.
and all fuse tested good.
or as any car battery gets weak near 10vdc
any and all electronics onboard die or go crazy random acts. don't let this happen to you.
if the starter motor sounds fast and robust the battery may be ok.
but if sounds week we change it till it sounds right.
or replace it or jumper cable jump any car with a very low weak battery . to get voltages above 13vdc.

you need a proper scan tool and do a crankshaft camshaft corellation allignment.

I had the same problem with a Mercury. It was the starter. Had a bad field winding. When I would try to start the engine the battery cables tried to straighten out. Might take a look at the battery cables when trying to start the engine.

Usually you get a code that tells you which cylinder or cylinders are acting up.
The code means the cylinder (s) are not providing power but does not tell you why.
So you have to figure out if it is an ignition, compression, or fuel problem to proceed. Could also be a vac leak.

i think you might need a new battery, then have your charging system tested.

It sounds like you have several issues.
1) it does sound like the battery is failing if you have trouble starting it the engine, but it runs OK once started.
2) Your remark "unless the check engine light is off" is confusing. Please clarify.

you need to have the pcm checked...it acts as the voltage regulator

COULD BE A BAD FUEL PUMP EVEN THOUGH ITS NEW, TRY THE FUSES IN THE MAIN FUSE BOX UNDER THE HOOD, ALSO TRY DISCONNECTING THE BATTERY CABLES FOR ABOUT 5 MINS, LASTLY IT MAY BE THE ECM [computer on fire wall]
HOPE THIS HELPS SOMEWHAT

Have your battery tested. When the battery has a problem the dodges will act this way.

Try www.reliable-store.com , it's very helpful in repairing your vehicle