There's two different generators for your car. I got sidetracked searching for a diagram with the correct wire colors on the external regulator version. For now, jumping between the "I" and "F" terminals on the regulator will bypass it and "full-field" the generator. Those should be the first and fourth terminals. That will make it charge wide open if the regulator is at fault. Don't raise engine speed and definitely don't disconnect the battery when doing the full-field test. Either of those things will allow system voltage to rise to dangerous levels if the generator is working.
If bypassing the regulator makes the generator work, you'll see the head lights get noticeably brighter, or, if you're monitoring battery voltage with a digital voltmeter, you'll see the voltage go up to around 14 to 16 volts at idle. That will prove everything other than the regulator is working.
If bypassing the regulator causes no change in output voltage, the problem is in the generator or wiring. I can walk you through that diagnosis once I find a diagram.
Monday, November 21st, 2011 AT 8:55 PM