Reverse warning sound does not work

Most of the time, when I shift to reverse, only the camera works. But the warning beeper does not give out a sound.

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@bongeaberilla what year and model is your Isuzu?

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@oldturkey03 sportivo 2013

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@bongeaberilla that makes it a Isuzu (Panther) Crosswind. Let's see what we can find out and if we can get a wiring diagram for it.

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