9003 Headlight Bulb Wiring Diagram
9003 Headlight Bulb Wiring Diagram. Web the 9007 bulb has the ground pin in the middle, and high/low positive pins on the outside, whereas, the 9004 bulb has the ground pin on one side, and in the middle. Web instead of only one wire producing light, the 9003 (hb2/h4) bulb has two. 9003 Headlight Wiring […]