my O2, Fuel Empty, Brake & battery lights are all on. The fuel is full and the car seems to be running fine. What is my problem?
easy stuff first, check brake fluid level, check battery voltage, now a little harder, test alternator output and diode pattern, right there is usually where the problem is, a diode goes faulty and causes a feedback turning on all those warning lights.
Disconnect the neg. battery cable. Then reconnect.... That should reset your codes. Like a computer reboot.
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