DCX KeyFob Module
Operations Manual
DCX_KeyFob_UserManual_1.45_2007Apr2.doc
1
Notice to User
Caution:
Changes or modifications not expressly
approved by the party responsible for compliance
could void the user's authority to operate the
equipment.
FCC Information to Users:
This device complies with part 15 of the FCC Rules. Operation is subject
to the following two conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any interference received,
including interference that may cause undesired operation.
Purpose
The DCX KeyFob Module interfaces with the vehicle WCM (Wireless Control
Module). The KeyFob houses a RKE (Remote Keyless Entry) transmitter and SKIM
(Sentry Key Immobilizer Module) transceiver.
SKIM Immobilizer
The SKIM Immobilizer Key prevents unauthorized operation of a vehicle by
disabling the engine. This system utilizes ignition keys which have an embedded
electronic chip (transponder). The vehicle can only be started and operated by keys that
have been programmed to the vehicle. Once a key has been programmed to a vehicle, it
cannot be programmed to any other vehicle.
Operation of the SKIM Immobilizer system is automatic and does not require user
activation.
The SKIM Immobilizer communicates with the WCM via an inductive coupled
link at a frequency of 125Khz.
