Re: OK, guys, please teach me some stuff.... - Saab 9000 Bulletin Board - Saabnet.com
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Re: OK, guys, please teach me some stuff....
Posted by Simon S (more from Simon S) on Tue, 24 Apr 2018 10:29:30
In Reply to: OK, guys, please teach me some stuff...., Noel [Profile/Gallery]
, Tue, 24 Apr 2018 10:15:57
The primary method is with an ammeter. Most digital multimeters can do 10 amps, which is sufficient for what we need. In this type of ammeter, you will be wiring the meter in series with the circuit being tested, to see how much current is flowing through the meter.
Typically you start at the battery, disconnecting the positive terminal and placing the meter there. With the ignition off. Start at the largest range (10A), and verify current is low enough that you won't blow the fuse with the more precise range. This reading is going to be well less than an amp, hopefully ~50 mA. Once you have a value from this reading, you can reconnect the battery, and go to the fuse box - pull a fuse, and replace it with the ammeter. This way you can see what each circuit draws. ACC, power seats, power antenna, things that get power with the ignition off, are what you want to target.
posted by 24.22.32...
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