Provide stable power to your accessory at all times.
Modern cars come with bulb failure warning systems or power protection systems such as PWM meaning some vehicles cannot provide stable 12v power at all times from either the reverse or brake light circuit effecting the operation of an attached accessory.
The CAN Bus bypass relay solves this issue by using a small low current relay that you connect a clean ignition live feed to which in turn powers the accessory. The vehicles reverse light or brake light circuit is only used to switch the bypass relay in turn activating the parking sensor kit or rear camera.
The output connector which plugs directly into some parking sensor kits will need to be cut off for universal accessory use.
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