Hi, I just brought an 1999 Sports Magna, and it came with an ABS light on all the time, I check the sensors with a multimeter and they were all reading, check voltage at the plug to the abs unit/cpu. all good. I had an computer to talk to the car cpu and wouldn't talk to the abs cpu. Would this means the main abs cpu/modulator is faulty. I took another cpu/module from another magna and plug into the sports but still the lights still on when i turn on the ignition but not the motor due the brake lines/fluids were still attach to the old module.
Should i need too change the complete abs cpu / modululator and tray turning the car on or is there a sequence eg disconttect batery then start the car to reset the faulty cpu unit ?? please help as i want to get the car rwc and drive it.