2006+ GM 6.6L Diesel Dual Alternator to Single Alternator

Technical Support Subject 2006–2017 GM 6.6L Diesel Dual Alternator to Single Alternator Document Version Department Revision Details Revised by Tech Engineering Implemented EXT-VR-089 B Tech Updated BDJ 21 Mar 2017 N/A Page 1 of 1 Knowledge Base: www.kb.vmacair.com Email: tech@vmacair.com Web: www.vmacair.com Technical Support: 1(888)241-2289 Toll Free:1(800)738-8622 Fax: 1(877)740-3202 System or Parts affected Underhood70 (V900113) 2006–2017 Chevrolet/GMC C/K2500HD-C/K3500HD equipped with OEM Dual Alternators Overview VMAC’s V900113 UNDERHOOD compressor system is only compatible with the above, if truck is converted to single alternator system by removing the Auxiliary Secondary Alternator. Before you start • Confirm that the electrical demands in the truck will be met by the output of the single Primary Alternator, before moving forward with removal of Auxiliary Secondary Alternator. Resolution • Information received from GM’s Upfitter Integration Department regarding removal of the Auxiliary Secondary Alternator states that the truck’s electrical system will not sense that the Secondary Alternator has been removed. • The charging cables remaining from the Secondary Alternator are live with system voltage and must be appropriately insulated & secured to prevent any shorts or electrical faults. • If you have specific questions or concerns about converting your Chevrolet/GMC truck to a single alternator, please contact your nearest GM service center. If you have questions or concerns about this document, please call VMAC Technical Support at 1-888-241-2289 or email tech@vmacair.com .