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Posted
2 hours ago, Sam P said:

I just cleaned up this connector with Deoxit. Fired up the engine and am still seeing only 12.3vdc at the battery. Thought I should check the output voltage from the reg/rec going into this connection, which I have not done yet. What should the voltage be at idle and with some revs? If the voltage is not good, then the rec/rec is malfunctioning, correct? (I have tested the AC voltage from the stator yellow wires, and it looked OK).

The black wire of that connector is the "voltage reference" from Relay #2 ("Headlight Relay") and should have no output from the regulator. The harness side of the black wire should be near battery voltage with the key on.

The white (or lighter) wire should ground through the warning bulb. An ohm meter through the harness side of the lighter colored wire should show continuous to ground. Also, a test light from the positive terminal should light when connected to the harness side of the white/lighter colored wire (which should also illuminate the warning light).

Posted
39 minutes ago, docc said:

The black wire of that connector is the "voltage reference" from Relay #2 ("Headlight Relay") and should have no output from the regulator. The harness side of the black wire should be near battery voltage with the key on.

The white (or lighter) wire should ground through the warning bulb. An ohm meter through the harness side of the lighter colored wire should show continuous to ground. Also, a test light from the positive terminal should light when connected to the harness side of the white/lighter colored wire (which should also illuminate the warning light).

Wow, thank you. I am indeed a novice! Will look into this tomorrow.

  • Like 1
Posted
50 minutes ago, Sam P said:

Wow, thank you. I am indeed a novice! Will look into this tomorrow.

We're just all working together, my friend. You are doing a great job reporting back what you find.

If we cannot find a bad connection somewhere, the new regulator will, indeed, be suspect as faulty.

  • Like 1
Posted
5 hours ago, Sam P said:

I just cleaned up this connector with Deoxit. Fired up the engine and am still seeing only 12.3vdc at the battery. Thought I should check the output voltage from the reg/rec going into this connection, which I have not done yet. What should the voltage be at idle and with some revs? If the voltage is not good, then the rec/rec is malfunctioning, correct? (I have tested the AC voltage from the stator yellow wires, and it looked OK).

Did you increase  the RPM after you started it  ? 

I worked on a BMW car WAY longer than I wanted. No charge. I replaced the battery, alternator twice . After doing a WHOLE lot of work , testing and replacing , NO charge. For some stupid reason I blipped the throttle and the rest is history.

 Do make sure all ringlets are on the battery + and -. Make sure F3 has 12v (I think I said F4 earlier but I am wrong. This circuit goes from the b+ side of the battery to F3 and then to the regulator.

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