Audi A4 Wiring Harness Diagram Audi a4 diagram fan module wiring ac 75bc 9b98 I need the wiring diagram for the ac fan module. audi a4 I need the wiring diagram for the ac fan module. Audi a4 I need the wiring diagram for the ac fan module. Audi a4 Check Details ← Injector Wiring Harness Audi A4 B6 1.8t Audi A4 Engine Diagram → Share with friends Link copied