
Ford Sierra Manual
Anti-theft alarm - location, removal and refittingBody electrical system / Anti-theft alarm - location, removal and refitting
Note: The alarm system has a self-diagnosis function, which allows a Ford dealer to carry out fault diagnosis, using suitable specialist equipment. In the event of a problem with the alarm system, it is advisable not to tamper with the components until appropriate fault diagnosis has been carried out.
Location
1 From 1990, certain models are fitted with
an anti-theft alarm (see illustration).
51.1 Anti-theft alarm system components
A Tailgate/boot lid switch
B Control module
C Horn
D Bonnet switch
E Door switch
F Activating switch
2 The alarm system consists of a control module mounted behind the driver’s side facia; trip switches fitted to the doors, tailgate/boot lid, and bonnet; activating switches fitted to the front door locks; an additional horn mounted at the bulkhead next to the battery and an indicator light mounted on the top of the facia.
Module - removal and refitting 3 Disconnect the battery negative lead.
4 Release the carpet trim panel from under the driver’s side facia.
5 Reach up behind the facia and locate the control module. Release the plastic retaining clips using a screwdriver, and lower the module.
6 Disconnect the wiring plug and withdraw the module.
7 Refitting is a reversal of removal.







