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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1197 (Lighting Systems) >> Description and Operation >> Exterior Lighting Systems Description and Operation >> Headlamps >> Manual Operation

Manual Operation

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.

Place the headlamp switch in the ON position, for normal operation. Battery positive voltage is then applied at all times from the HDLP circuit breaker to the headlamp switch. When the headlamp switch is placed to the HEAD position, battery positive voltage is applied to the headlamp dimmer switch. Battery positive voltage is then applied to the underhood fuse block. When the headlamp dimmer switch is in the LOW position, battery positive voltage is applied to the HDLOBML fuse and the HDLOBMR fuse. When the headlamp switch is in the HIGH position, battery positive voltage is applied to the HDHIBML fuse and the HDHIBMR fuse. Battery positive voltage is then applied from the fuse to the individual headlamps the ground circuit for the left headlamps is provided from G101 and the ground circuit for the right side is provided by G102.