Passenger door unlocks the whole car when you pull on handle

Question

It's an Australian 1999 Ford Falcon. The car locks and unlocks fine. Everything runs fine. The only problem is when the car is locked, if you pull on the exterior passenger door handle, the whole car unlocks. The whole car makes that click sound, as if you pressed the unlock button on the remote.

I'm pretty savvy with electronics repair, and I'm assuming this is an electronic issue. I just have no idea how to access anything. How would I go about finding where these components are in the car? Is this feasible to fix on my own? I don't have a lot of money to properly see anybody about this.

Thanks!

GdD · Accepted Answer

According to the OP's comment all doors unlock when the inside passenger door handle is pulled. This is pretty normal on cars these days, it's a convenience thing.

If the door only unlocked when you pulled the outside handle then I'd say it was tripping the same sensor as the inside handle and it could be electronic, but the fact that it opens the door as well points to a different problem.  I suspect what's happening is that there's an issue with the door mechanism where the lock does not disable external the handle, in other words it's mechanical, not electrical in nature. From a quick Google search it looks like the door actuators on those Fords are known for issues, and refurbs are easy to find and install.

Steve Matthews · Answer

If indeed it is only when the internal handle is pulled I'd say the fault lies with the drivers internal handle for NOT unlocking the car when pulled. If it's the outside handle something is obviously wrong.

Answered by Steve Matthews on June 6, 2021

Passenger door unlocks the whole car when you pull on handle

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