Operation CHARM: Car repair manuals for everyone.

Audible/Visual Warnings

A disc horn, mounted under bonnet, is used as the alarm sounder. The output from the sounder is either pulsed or a continuous tone, depending on market legislation. If the output is pulsed, then its status will be synchronised with that of the visual indicators.

The lamps used for external visual indication are dependent upon market legislation, but will be either Hazards, or Side and Tail, or Dip and Tail