MIL and Battery light on

I just bought this car from a used car dealer that just didn't wanna deal with the issue's I'm guessing but anyways. The Check engine light is on and the battery light also on. I did notice upon purchasing the car that the belt was missing and the battery was deader than a door nail. it had been wreck in the front but it's was minor no fluids leaking or anything just front bumper or missing altogether. so i replaced battery and belt check oil and fuel everything seems okay no water in oil and the fuel smells okay not to fresh but runnable. Starts fine and runs good a/c blows cold air like 59 degree's But the data connection doesn't communicate to the hand device I've disconnected the battery for over 20 minutes and the light comes back, I took it to auto-zone and their device could read the codes and it shows P1492,P1794,P0700 and when cleared and re-read the the dtc it shows P1492 with out even starting the car.
need some fresh input here, checked all fuse's and relay's, ground connections and either I'm missing it or something is very wrong. I even bought a computer to replace but come to find out these are Vin specific cars.
:banghead:
any help would be appreciated

CodeVehicle MakeModel YearVehicle Model /EngineSizeExplanationP1492ChryslerBattery temperature sensor signal too high condition
– ECM detected the battery temperature sensor signal too high
Probable Cause[s]

Defective Battery Temperature Sensor
Open or shorted circuit condition
ECM defective

Sorry guy's
It's a Dodge stratus 2001 and the engine is a I4, 2.4 L, automatic and i tried the new ECM but it runs and dies after a sec and then it runs fine on the second try. go figure.

Last nite i tried playing with all the ground wire's and i notice when i started it this time it stayed on with out dying and the cluster needle's shot over and and back and the idle was high like 2800rpm's and the speedo was registering 80 mph. very strange seems possessed.:evillol:

well i been playing with this off and on over several weeks and i found several frayed wires i connected them and change out the trans pcm and everything seems okay but the temp and battery light is still on. they turn off and after a 20 min run time it comes back. anybody got any ideas???

had the tri-fecta
bat. temp. sensor was shot, the battery was also gone and the final thing came out to be the short in the wiring harness inside of the car due to a mouse. final cost 450.00
Geeeezzzz
thanks for ur help JPB53