P0320 & P1391 OBD codes displayed, found during emissions testing but there are NO engine or driving problems idicated.

the code is P0209. They are giving you the gears. Nothing to do with Catalytic converter which is between $210 and $400 to replace. Cat is P0420 code. All these codes can be found on Google

What the P0209 code means. The meaning of the P0209 code is that the fuel injector circuit was found to have out of range voltage or resistance. This out of range performance is detected by the Engine Control Module (ECM) and this causes the Check Engine Light to be triggered.

P0209 OBD-II Trouble Code: Injector Circuit Malfunction

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P0209 - Injector Circuit Malfunction Cylinder 9 - Engine-Codes ...

https://www.engine-codes.com > p0209

Engine Control Module (ECM) checks the injectors circuit resistance and monitors the voltage drop during normal operation. The ECM will trigger the P0209 code ...

Engine Trouble OBD II Code P0209 - PartsAvatar.ca

https://partsavatar.ca > Articles > All OBD Codes

OBD code P0209 is defined as Cylinder 9 Injector Circuit Malfunction. This error code is set by the PCM/ECM if it detects low or high voltage drop or resistance ...
P0209 Dodge OBD Error Code: P0209 Lincoln ...
P0209 Chevrolet OBD Error Code: P0209 Kia ...
P0209 BMW OBD Error Code: P0209 Infiniti O...
P0209 Acura OBD Error Code: P0209 Honda ...
Cat cost, plus an hour to fit
https://www.rockauto.com/en/catalog/chevrolet,2012,traverse,3.6l+v6,1501884,exhaust+&+emission,catalytic+converter,5808

,,

vehicles do not throw codes otherwise you have to pick them up, thy are displays
all codes are on line

.
P0320 OBD II Trouble Code Ignition Distributor Engine Speed Input Circuit...

OBD II Trouble Codes Home

P0320 =no signal detected from crankshaft position sensor during cranking, my guess is replace the CPS

Your vehicle is equipped with an OBD II computer AND a link to connect OBD II computer to a Smog Check Analyzer or Data Scan Tool (available
at most auto part stores).There are two types of codes, bad codes and good codes. The good codes are the "Readiness Flags". These Readiness Flags
indicate that certain emissions systems which the OBD II computer has been monitoring have PASSED the test, indicating that those systems are
working properly. Then there are the bad codes. The bad codes are actual "Trouble Code". These codes indicate that the OBD II computer
has detected a problem with in the emissions system. The Trouble Code will specifically indicate the component and problem which was found.
Newer vehicle's have very complex codes in the thousands.
"Readiness Flags" do not cause the "Check Engine" light to illuminate, but may cause a vehicle to fail the smog test.
In order to set all the proper "Readiness Flags" the OBDII system must complete at least one drive cycle (in some cases
two or three). A drive cycle is a sequence of internal tests which the OBDII computer runs while your vehicle is being driven. This insures
all emissions systems are functioning properly. Only then will your vehicle pass the smog inspection. A drive cycle usually requires one
week of driving.

Your vehicle is equipped with an OBD II computer AND a link to connect OBD II computer to a Smog Check Analyzer or Data Scan Tool (available
at most auto part stores).There are two types of codes, bad codes and good codes. The good codes are the "Readiness Flags". These Readiness Flags
indicate that certain emissions systems which the OBD II computer has been monitoring have PASSED the test, indicating that those systems are
working properly. Then there are the bad codes. The bad codes are actual "Trouble Code". These codes indicate that the OBD II computer
has detected a problem with in the emissions system. The Trouble Code will specifically indicate the component and problem which was found.
Newer vehicle's have very complex codes in the thousands.
"Readiness Flags" do not cause the "Check Engine" light to illuminate, but may cause a vehicle to fail the smog test.
In order to set all the proper "Readiness Flags" the OBDII system must complete at least one drive cycle (in some cases
two or three). A drive cycle is a sequence of internal tests which the OBDII computer runs while your vehicle is being driven. This insures
all emissions systems are functioning properly. Only then will your vehicle pass the smog inspection. A drive cycle usually requires one
week of driving.

OBD system tests
Possible fault codes:
P1000 OBD system tests Operation not
completed
Setting of the fault code P1000 has no
influence on the system <Engine
management>, smooth running or performance
as long as it is automatically erased
whilst driving.
The fault code P1000 indicates noncompletion
of system tests.
* Misfire detection
* Evaporative emission control system
* Exhaust-gas recirculation
* Lambda sensor
* Exhaust gas catalytic converter
The fault code P1000 cannot be erased. It
is cancelled automatically once the
vehicle has completed certain driving
cycles.

P1391 DODGE - Electronic Brake control Rough Road Data Unusable/unreadable
You need to see the dealer on this, it may be programing issue.

What engine?

P0320 and P1391 are crank sensor codes. The symptoms you have certainly point towards one possibly going bad.

if this is a 4.0 straight six you can find the crank sensor on the drivers side of the transmission where it blots up to the engine on the top side. If you look in between the intake and the firewall you should be able to locate the harness and follow it to the sensor. The sensors are relatively inexpensive and would be an excellent start.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

This is OBD - On - Board -Diagnostic Display.
On Board Diagnostics, OBD-II, is required on all automobiles and light trucks from 1996 onward. OBD-II is a set of specifications for monitoring and reporting on engine performance in modern automobiles.
If the Service Engine light is on, then connecting a Code Scanner on OBD Connector, the Code is picked up and the code explanation can be found. If this is a False Code, this can be Cleared with the code scanner, after reading the code. The location of OBD-II connector in your car can be found here:
http://www.obdclearinghouse.com/index.php?body=oemdb
Remember the Check Engine light only comes on for emissions-related failure (which includes fuel and ignition, too). A separate warning light will illuminate if there are non-emission problems such as low oil pressure, charging system problems, etc.
If the light is on because of a misfire or fuel delivery problem, and if the problem does not occur after three drive cycles, the Check Engine light may go out. Whether the light goes out or remains on, a code will be snt and remain in the computer memory to help you diagnose the fault.
More information for the codes can be found here:
http://www.aa1car.com/library/ic10224.htm
After the code is picked up with a scanner, the code explanation is founded, and a decision has to be made to fix the problem or to clear the code. This can be done with the same scanner. If you do not have a scanner, any AutoZone, or Advance car parts store can do it for free.

First the fault codes,
U110C is No Fuel Level Bus Message
U0155 is No Cluster Bus Message.
Unfortunatly you have to be able to communicate with the instrument cluster with your scanner to diagnoise and I do not think an aftermarket scanner can do this.