XS Power XSP310-312 VCM Digital Dash Mount Controller + GM SI Harness
Voltage Control Module
Is it a true "plug and play" module?
Yes, it is to 99.9% of the users, but there will be that .01% that dosen't think it is plug and play. I say this because you do have to connect 3 wires your self and there is now way we can get around that. The instructions lay out how to hook it up step by step and make it very easy.
Here is how you hook it up.
Connect the YELLOW fused wire to your alternator charge post with the battery.
Connect the BLACK ground wire to your alternator case or other good (BARE METAL) ground point near your alternator.
Connect the RED wire to FUSED side of a ignition switched circuit in the fuse box.
You unplug your harness plug going into your alternator and plug it into the VCM wire harness. Then you plug the VCM wire harness into your alternator.
Run the wire harness to the mounting point of your choice and mount the controller.
What are the settings for 12/14/16v applications?
12V - 14.2 to 15.2
14V/16V - 14.2 - 19.5
IF USING THE VCM WITH XS POWER BATTERIES NEVER EXCEED THESE VOLTAGES:
12V BATTERIES - 14.9VOLTS
14V BATTERIES - 16.9VOLTS
16V BATTERIES - 19.5VOLTS
The VCM is a Voltage Control Module. It cant make your 80 amp OEM alternator produce the power of a 250 amp dual alternator kit. For example if your system is pulling 500 amps but your alternator is only producing 80 amps, then it is going to start drawing from your battery bank. Once this happens your voltage will start to drop.
Showtime Electronics is an XS Power Authorized Dealer