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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1322 (Lighting Systems) >> Description and Operation >> Exterior Lighting Systems Description and Operation >> Backup Lamps >> Automatic Transaxle

Automatic Transaxle

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.

On vehicles equipped with an automatic transaxle, the circuit closes through the park neutral position (PNP) switch. When the ignition switch is in the RUN or START positions it applies power to the gauge fuse, located in the Instrument Panel Fuse Block. Current flows from the fuse to Right Instrument Panel Junction Block. Current then flows through SP107 then finally going to the backup lamp switch cavity 3. When the switch is closed it allows voltage to be applied to Right Instrument Panel Junction Block through backup lamp switch cavity 2, which leaves the Right Instrument Panel Junction Block C1 cavity 2. After leaving the Right Instrument Panel Junction Block, current is split through SP302, to the rear combination lamp cavity 2. Ground is finally provided at the rear combination lamp cavity 3.