Yes they are related. A signal wire, Pink, comes from the CEM through the lock microswitch on through the demister and on to earth. If it gets broken, or the window gets broken you will get alarm messages and the remote flashes on lock unlock are different or absent on either lock or unlock.
The wires at the hinge can break inside with no external signs of damage.
I would check for continuity from the black earth wire at the demister and a good body earth and open the plug to the tailgate wires up inside the upper access panel to the right tail cluster and check for continuity in the pink wire with the latch closed over. Wiggle the harness at the hinge.
Last edited by Brendan W; Feb 15th, 2020 at 12:04.
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