The Passenger Side Sliding door will not lock with the remote, will not lock when the "lock all doors" button is pressed from the front row, and cannot be manually locked. Otherwise, the door works normally--it opens and closes as expected. It latches properly. No warning lights are on and the interior lights go out when the door closes. The motorized open and close functions are working fine.

The dealer wants $130 to diagnose, and the likely part is $490 (door lock assembly). I think it is the lock solenoid/actuator, which appears to only be sold separately aftermarket. I am looking for affirmation that I am on the right path before I spend a day tearing apart the door in the hope that this part will fix the problem. I certainly don't have the $$ to have the dealer fix it.

Do you think I need Mopar part# 68030380aa
Should I try to source the lock actuator aftermarket?

Does anyone have detailed instructions?