16’ Trans Connect - Parking aid malfunction, service required, disables van

[NastyNate338]

Got a funky one for you guys. This past Monday, I’m sitting in Van, idling w AC on, closing out a work order when Van dies. I turned ignition off then tried to restart it and a “parking aid malfunction” message accompanied by a “starting system fault” appeared on the dash. 
 

Checked all fuses = GOOD

tested battery = GOOD

inspected backup sensors, harness and connectors for corrosion, connection etc = GOOD

Visually inspected wiring at PAM in cargo area = GOOD

 

I disconnected battery to force a reset of the PAM and to clear any faults and then I was able to start it again. 

45 min later at a stop light, it did it again and this was also resolved by DC the battery for 5 min. 
 

I bought a BT OBDII adapter and downloaded FORScan and tried to unsuccessfully recreate the fault so I could pull a DTC. It only happens when I’m parked and once while moving. I just have to wait til it happens and each time it’s reoccurred, FORScan is unable to pull DTCs off the PAM. I can reboot the PAM with FORScan now and start the van vs DC the battery so at least I have that going for me. 
 

When fault is active, it seems to trigger the anti theft because I can’t shift into neutral, roll down windows, nothing. 

I’ve disconnected the PAM for the time being and the van starts but I get the “parking aid fault service required” message. I’m thinking the PAM itself is hosed but don’t know how to test to verify before I drop $200 on a new one. I’m thinking if it was a sensor FORScan would spit a DTC that’s related to a sensor. 

 

Anyone know how to test a PAM? Anyone have any other ideas that I may be missing? Attached is a screenshot of the logs when the fault is active. 
 

Thanks in advance guys🤙🏽

Edited 46 minutes ago by NastyNate338
Forgot something