Vehicle Theft Security - DaimlerChrysler SPRINTER2006 Service Manual

8Q - 2

VEHICLE THEFT SECURITY

and pull that edge of the lamp away from its mount-
ing location (Fig. 1).
Fig. 1 DOME LAMP/INTRUSION SENSOR
1 - NOTCH
2 - SENSOR (3)
3 - HOUSING
4 - SWITCH (2)
(3) Pull the dome lamp/intrusion sensor unit from
its mounting location far enough to access and dis-
connect the vehicle wire harness from the lamp con-
nector receptacle.
(4) Remove the dome lamp/intrusion sensor unit
from its mounting location.
INSTALLATION
(1) Position the dome lamp/intrusion sensor unit to
its mounting location.
(2) Reconnect the vehicle wire harness connector
to the dome lamp/intrusion sensor unit connector
receptacle.
(3) Position the edge of the dome lamp/intrusion
sensor unit housing opposite from the retainer clip
into the mounting hole.
(4) Push firmly and evenly on the notched edge of
the dome lamp/intrusion sensor unit housing until
the retainer clip latches into place.
(5) Connect the battery negative cable.
SECURITY SYSTEM MODULE
REMOVAL
(1) Disconnect and isolate the battery negative
cable.
(2) Remove driver seat cushion.
(3) Remove mounting fasteners.
(4) Disconnect wire harness connector.
INSTALLATION
(1) Connect wire harness connector.
(2) Position module. Install and tighten mounting
fasteners.
(3) Install driver seat cushion.
(4) Connect battery negative cable.
SENTRY KEY REMOTE ENTRY
MODULE
DESCRIPTION
The Sentry Key Remote Entry Module (SKREEM)
(Fig. 2) performs the functions of the Sentry Key
Immobilizer Module (SKIM) and the Remote Keyless
Entry (RKE) module.
Fig. 2 SENTRY KEY REMOTE ENTRY MODULE
(SKREEM)
SENTRY KEY IMMOBILIZER
The Sentry Key
authenticates an electronically coded Transponder
Key placed into the ignition and sends a valid/invalid
key message to the Engine Control Module (ECM)
based upon the results. The "VALID/INVALID KEY"
message communication is performed using a rolling
code algorithm. A "VALID KEY" message must be
sent to the ECM within two seconds of ignition ON
to free the engine from immobilization. This Control-
ler Area Network (CAN) data bus message is sent to
the ECM after first going through the SKREEM. The
SKREEM is located behind the instrument cluster
and has a separately mounted antenna ring mounted
around the ignition cylinder (Fig. 3) which picks up
the transponder key signal.
Immobilizer System
VA
(SKIS)