Rear running light not working on sportster rear turn signal works but running light does not

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Hi Anonymous, always check fuses and bulbs first for broken filaments. Then check the connection at the rear fender wiring harness, inspect for corroded, broken or loose pins. Use a dab of dielectric grease and repair as necessary. Check your brake relay if you have one , check your brake light switches for continuity, some models rear turn signals were single filament bulbs only, no running light. If all else fails get out your test light and start tracking the power wire from the harness connection. For a free wiring diagram please visit the website below and good luck:
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