Recently we attended a ford fiesta with a boot lock issue, the boot would not unlock via the remote or internal switch however the mechanical key lock would unlock the boot. On arrival we used Ford IDS to activate the tailgate switch and activate the lock solenoid. On testing all was both sending and receiving the correct signal but the lock was not being actuated.
We tested the wiring loom to ensure the correct voltage was being received at the actuator and as expected it was. We advised the customer a new boot lock actuator was required at a cost between £12 and £28 and just two bolts this was easy enough for the customer to tackle himself after our diagnosis.