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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 779 (Lighting Systems) >> Description & Operation >> Exterior Lighting Systems Description & Operation >> Stoplamps

Exterior Lighting Systems Description & Operation: Stoplamps

WARNING: This page is about a different car, the 2002 GMC Safari and 2002 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

The STOP/HAZ fuse in the IP fuse block supplies battery positive voltage to the normally open stoplamp switch. When the driver presses the brake pedal, the switch contacts close and battery positive voltage is supplied to the multifunction turn signal switch. The current flow is now to the stoplamps which are grounded at G400 and G401. The center high mounted stoplamp (CHMSL) is grounded at G400.

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