93 legend weird electrical problems

i just got a 93 legend and im having issues with it. its only got 86k on it. when you turn on the wipers the low oil light comes on and the wipers move real slow. when you plug in the dash light dimmer switch the check engine light comes on and the high beam light is on wether the high beams are on or not. Im a volkswagen mechanic and im having a lil trouble adapting to this honda thing. please help thanks