If your trailer is equipped with a braking system, make sure it conforms to your state
Smart Tailgate Latch Repair procedures
Removal
1.
Disconnect the negative (-) battery terminal.
2.
Remove the tail gate trim.
(Refer to Body - "Tail Gate Trim")
3.
Disconnect the smart tailgate latch and PCU assembly connector ...
Oil Pressure Switch Components and Components Location
Components
1. Oil cover2. Oil cover gasket3. Oil pressure switch
...