Rear wiper and hatch lock issues

[beeman]

My 2016 fiesta has been acting weird in regards to the rear hatch. The rear wiper and rear fluid sprayer both have stopped working entirely, and the hatch lock has been difficult.

If it rains, the hatch lock will unlock when certain lock signals activate, (the automatic one once you get up to speed and locking from the key fob sometimes), and work normally with others.

The rear wiper and washer sprayer don’t work at all

I’ve already replaced the battery so I know it’s not something with that. I want to see if anyone else has encountered weird issues with the hatch electronics and if replacing the rear wiper motor and hatch lock would fix the issues.

 

[anxiouz]

There is a fuse for the rear wipers that you can check in the passenger footwell, but since the fluid and latch are also having issues, I'd prob check the wiring between the hatch and the car. It's not uncommon for the wiring going through the rubber connector tube from the hatch to get crimped or damaged over time. Might we worth loosening the rubber grommets and wiggling the wires there to see if anything changes (or if any have too much play and might be loose).

It's also easy to take off the inside plastic cover of the hatch to see how the wires and connection to the hatch look too.