XS Power XSP310-312 Controller and Harness for GM "CS" Series Alternators (1986 to 1997), Red Display
We are a XS Power Authorized Dealer so you get up-to-date, fully warrantied products. Shipping is free to the lower 48 states on everything you order!
What's Inside?
- • Controller and Harness
- • Owner's Manual
VCM Controller & Harness for GM CS Alternators
Upgrade your GM charging control with the XS Power XSP310-312, a purpose-built VCM controller and harness for GM “CS” Series alternators from 1986–1997. With selectable 12V, 14V, and 16V configurations, it gives you controlled voltage adjustment for performance-focused electrical systems.
Frequently Asked Questions (FAQ)
- • Why does my XSP310-312 voltage jump unexpectedly?
Users have reported VCM voltage spikes that can cause connected electronics to cycle or enter protection.
- • Why won't my XSP310-312 adjust correctly?
Incorrect dip-switch settings, wiring, or alternator compatibility can prevent the controller from reaching the desired voltage.
- • Can I install it on any GM alternator?
No. The XSP310-312 is specifically designed for GM CS-series alternators from 1986–1997.
- • Will it work with a one-wire alternator?
No. XS Power's application guide states that the VCM is not compatible with one-wire versions of the listed alternators.
- • Why is my 12V battery charging too high?
The 12V setting can reach 15.2V, but XS Power says its 12V batteries should never exceed 14.9V.
- • Can the controller damage sensitive electronics?
Yes, excessive voltage can damage equipment that is not designed for it. Users have reported electronics repeatedly switching on and off during VCM voltage spikes.
- • Does XSP310-312 support 14V and 16V systems?
Yes. It supports 12V, 14V, and 16V setups, with higher-voltage settings allowing adjustment up to 19.5V.
- • Why does my alternator seem to stop charging?
If the VCM is not compatible with the alternator or its wiring is incorrect, charging problems can occur. Confirm the alternator application before troubleshooting the module.
- • Can I use an aftermarket alternator with this VCM?
Yes. The XSP310-312 is listed as compatible with both stock and aftermarket alternators when the correct GM CS application is used.
- • Why does my system behave normally at low voltage but fail at higher settings?
Higher VCM settings increase stress on batteries and electronics. XS Power recommends confirming every connected component's maximum safe voltage before increasing the output.
Features:
- GM CS Series Fit: Designed for 1986–1997 GM “CS” alternators.
- Controller & Harness: Application-specific solution for voltage management.
- 10–20V Operation: Supports a wide range of electrical setups.
- 12V Mode: Adjustable from 14.2V to a 15.2V programmed limit.
- 14V/16V Mode: Adjustable from 14.2V to a 19.5V programmed limit.
- Dip-Switch Setup: Easily configure the controller for your system.
- Performance Ready: Ideal for upgraded and custom charging systems.
- UPC: 692209015239
- Weight: 10
- Authorized Internet Dealer
Warranty: 2 Year(s) Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 2 Year(s) from the original date of purchase with proper return authorization.
