Central locking failure after alarm removal

Tags: #unresolved

Reported symptom (low confidence, single report, unresolved in the source thread): after an aftermarket alarm system was removed from the car, remote-triggered central locking stopped working on all doors ¹. The cause is unclear — it may relate to how the alarm's installation had been integrated into the factory door-locking circuits, such that removing it left the factory circuit incomplete or miswired, but this wasn't confirmed. Further diagnosis needed to determine whether the door mechanisms are physically stuck or whether this is an electronic control issue (e.g. a wire that was tied into the alarm harness and not restored to its factory routing during removal).

Related pages

• Radio/A-C/display/fan failure — blown fuse
• Central locking staged unlock (normal)
• Ignition coil replacement (open question)
• Hot air leak — steering column vent damper
• Rear defroster contacts after door replacement

Sources

This page is compiled from 1 community messages. Every fact carries a numbered reference to its original author and message.

Last updated: 2026-07-24