I was installing a boost gauge, and must've shorted something out because now my turn signals, fog lights, ac blower, and wipers don't work. I checked the fuses but they weren't blown. How can I pinpoint what the problem is?
UPDATE: This past Saturday I took my time to tackle this problem. I pulled every fuse, everyone checked out. Then I started pulling relays, testing them by wrapping some wire around the 85/86 poles and connecting them to the battery, then testing for continuity between the other poles. Alas I found two dead relays. One, I believe, is the switched power relay and the other is the wiper relay. The stores around me only had the switched power relay. Bought it and replaced it. Lo and behold I start the car and the first thing I hear is the beep from the boost gauge! Everything is now working except for the blower. Not sure if replacing the other relay will fix things as I read that there is none for my car, just the resistor that sits on the blower motor. The make is 99 Audi A4 1.8TQ. Any ideas? Found this wiring diagram: http://autolib.diakom.ru/CAR/Audi/1997/A4/SYSTEM%20WIRING%20DIAGRAMS/fig02.pdf http://autolib.diakom.ru/CAR/Audi/1997/A4/SYSTEM%20WIRING%20DIAGRAMS/fig01.pdf
PS: Its kind of ironic, had I just rushed and put everything back together before testing everything would've been fine!