Quote:
Originally Posted by cn90
Hmmm,
Thanks for the reply, does it drop that much 0.5V between the battery and the module(s)?
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Oh yes--totally. Take a look at your battery in the back. The accessories go to a MJB with a mega fuse and then the smaller fuses. Then from that they splice off into which way. You have to consider the wire length as a whole in addition to each connection point. So the voltage-drop of 0.5 volts...sure. that's fine. It's above 12 volts that the module is sensing from it's own wiring. This is okay--and even more so when you confirmed at the battery you were getting your 12.6volts.
Most vehicle powernet designs take this into account--especially for the charging system. This is why ideally the voltage sense circuit is dedicated from the alternator directly to the battery post. That way the alternator can compensate for any losses in the lines to the battery for proper charging purposes.