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E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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Old 04-13-2005, 04:24 PM
kenkorsak kenkorsak is offline
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Location: Barstow, Ca
Join Date: Mar 2005
Posts: 37
Mein Auto: 325i Convertible
Its code time again!!!!

Went out to the car turned on the key and depressed the gas pedal 5 times to reveal an OBD I code, the light flashed code number 1231 which is, Battery Voltage/DME Relay Monitor. This monitors the condition of the battery and charging system, and produces a fault if a component goes out of specification or fail. I changed the battery in Nov. My question is how to test the charging system without taking out the alternator? I know I can remove the positive cable while its running, not good for the car. Is there any other way of checking the voltage the alternator is putting out? I can't reach my hand to the back of the alternator (not enough room) to put my volt meter on it. Is there anything else I can try?
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