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JEGS factory-color GM wiring diagrams will equip you to re-wire or trace down an electrical issue, taking the guesswork out of your restoration project.. List of elements for Rear Wiper/Washer Wiring Diagram for GMC Yukon 2005: (on left front body mount) g100 Ajar Battery Body control module (bcm) (on lower left side of dash, below steering column) G410 Hot at all times Hot in run and acc I/p fuse block (behind lower left side of dash Left lift- gate ajar switch Lift- glass ajar switch Liftgate ajar switch signal Low Multifunction accessory.