Problem with charging system!!! Please help [Archive] - Toyota MR2 Message Board

check, regulator, problem, light, battery, charging, question, located, replace, idea, wire, replaced, alternator, system, fuse, book, green, good

My battery light on my 93 mr2 is on...I have replaced the alternator with a new one and the battery light is still on also i have check all the fuse and wire everything is still good...i check the big green book and it says to check or replace the ICU regulator...My question is what is a ICU regulator and what does it do also where is it located. Any one has another idea what the charging problem might be. Thanks let me know