It is very common problem on other cars.
I am diagnosing non-working unlocking.
There are 3 wires going from lock switches to BCM.
2 work for lock, 2 for unlock (one wire is common)
If unlock for 3 doors (except driver) doesn't work, it most likely means that one wire is broken in rubber boot between front door and body.
Any way I have to check continuity between lock switches and BCM.
Lock function works OK, that means wires between BCM and motors are fine.
I am diagnosing non-working unlocking.
There are 3 wires going from lock switches to BCM.
2 work for lock, 2 for unlock (one wire is common)
If unlock for 3 doors (except driver) doesn't work, it most likely means that one wire is broken in rubber boot between front door and body.
Any way I have to check continuity between lock switches and BCM.
Lock function works OK, that means wires between BCM and motors are fine.