Quote:
Originally Posted by muhanda1
Is it possible to enable the horn at all times? Even when the engine is not running.
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I'm quite confident when I say no, it is not, but I've also not explicitly tried. According to the wiring diagrams, the horn relay is supplied by Terminal 15, which is only active when the car is on. It's also sealed up inside the fuse box, so you couldn't (without MUCH ado and modding) wire the supply side to something else, like Terminal 30g (which, in general, will be on if you're in the car).
For what it's worth, the horn will work when the engine is not running, but the car does have to be 'on' (press the start/stop button without the brake pedal).