| Re: Battery draw You can also put a Multimeter set to milliamps in series with the thick wire that hooks to the alternator, as Ronnie said be careful, it is hot at all times and the terminal it connects to and look at the meter. any more than 1 or 2 millamps leakage means one or more of the six diodes are failing and you need to replace both sets of three or the alternator if you don't feel like taking it apart.
Another method is to hook up the meter in series with the negative terminal of the battery and the the ground cable, make sure meter is set to DC amps, if set to millamps the courtesy lights will blow the meter fuse. Then start pulling fuses one at a time while someone watches the meter to drop to 0.00. Then you have found the circuit that has the current draw. Most multimeters have a limit of 10 amps so make sure key is off and lights are off or you may pop the other fuse in the meter. Oh yeah, don't step on the brake pedal, I don't know what they draw but I bet it is close to or more than 10 amps.
__________________ 1990 Reatta Coupe, 1971 Buick Skylark Convertible
Sunny Miami FL. |