Drive cycle not resetting some monitors on Chrysler 300 3.5L. In the past when my battery was disconnected

[Floyd R. Turbo]

the computer monitors reset after drive cycles of around 50-60 miles. After my 300 failed two smog tests, I’ve driven it nearly 200 miles and the monitors are still reading “INC”/“Not Connected”.

They include: Catalyst (CAT), Evaporative (EVAP) System, EGR (Exhaust Gas Recirculation) and/or VVT System.

Any suggestions are sincerely appreciated.

[PoindexterOglethorpe]

1. Bring it to the dealer.

It might well be some very simple reset they can do.

Every few months a "check tires" light comes on in my car (a 2017 Honda Fit). I just go to the dealership, they check the tires, then reset the light. No charge.

[Floyd R. Turbo]

4. Good idea.

[Think. Again.]

2. Your monitors might be not connected?

You probably have a harness connection loose somewhere.

[Floyd R. Turbo]

5. Thanks

[cksmithy]

3. Go to O'Reilys or Autozone

and buy a check engine light code reader with reset, it will clear the codes, says my husband. He was journey man mechanic back when they were called that. We have one in the shed that he used routinely to clear the codes on his old Ford 150. I checked Amazon and they have them from $24 to $40.

[Floyd R. Turbo]

6. I have a code reader. I'm using it to monitor the obd status. There are no trouble codes just failures to

connect.