2003 Dodge Ram 1500 3.7L with P0340, P0320, and P0700 Codes: Battery Connection Issue or Deeper Fault?

Hi, I'm not entirely sure if a poor positive battery connection could trigger both engine and transmission fault codes like P0340, P0320, and P0700. While inconsistent voltage can affect engine performance, it's unlikely to cause multiple system-level faults simultaneously. I'd recommend checking all fuses and inspecting for loose or damaged wiring near the distributor or engine harness. A bad ground or intermittent connection could be contributing. Please update if you find anything unusual under the hood.

Thanks for the input. I'll check all fuses and inspect for any loose or broken wires near the distributor tonight. Will post my findings shortly.

I replaced both the camshaft position sensor and crankshaft position sensor. The truck now runs smoothly, and the check engine light initially went off after clearing codes with a scanner. However, during my drive back from the parts store, the light reappeared. Upon checking with the key switch, I found new codes: P0700, P0725, and P0846 — none of which were present before. I've also repaired two vacuum leaks (one under the truck for EVAP system, one under the hood). While these new codes suggest a potential transmission or sensor issue, they may still be related to the original electrical instability. I'm hesitant to visit a transmission shop unless absolutely necessary. Any advice on diagnosing P0725 and P0846 in this context would be greatly appreciated.