Liftgate Does Not Trip VTSS

Connect scan tool to Data Link Connector (DLC), under lower left side of instrument panel. Using scan tool, read LIFTGATE AJAR SW status. Open liftgate. If scan tool displays LIFTGATE AJAR SW as CLOSED, replace CTM. See CENTRAL TIMER MODULE  under REMOVAL & INSTALLATION. If scan tool does not display LIFTGATE AJAR SW as CLOSED, go to LIFTGATE AJAR CIRCUIT OPEN (DURANGO)  under DOOR AJAR SYSTEM.