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Underhood Lamp

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Battery positive voltage is applied at all times to the MONITORED LD relay 37 coil and switch side. The BCM applies a ground to the MONITORED LD relay 37 coil side, energizes the relay and closes the switch contacts. The BCM then allows battery positive voltage to the MONITORED LD fuse 2 and the underhood lamp. When the underhood is opened, its switch closes providing a ground circuit, and the underhood lamp illuminates.

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