Drive Authorization System (DAS)

DAS is activated from DAS control module through the Controller Area Network (CAN) data bus to the ME-SFI control module. When DAS is activated, ME-SFI control module renders fuel injection system inoperative. See DAS VERSION  table to identify model/version usage.

DAS 3 activation or deactivation is accomplished with the electronic key. When electronic key is inserted into the ignition lock, DAS 3 control module is activated. Locking or unlocking vehicle using mechanical key has no effect on DAS. The ME-SFI control module and DAS control module are "married" to one another with identification codes. Identification codes cannot be erased. Switching ME-SFI control module or DAS modules form one vehicle to another is not possible. If an exchange ME-SFI control module is installed for test purposes, up to 40 start attempts can be performed before ME-SFI control module and DAS control modules "marry" to one another. Prior to performing first engine start, ME-SFI control module must be version coded to vehicle using scan tool. See VERSION CODING .