Chrysler 300/300 Touring/300C, Dodge Magnum. Manual - part 790
tion lock cylinder. The SKREEM communicates with the shaft lock module over a dedicated serial bus to monitor
and control the shaft lock function.
The SKREEM performs a self-test of the SKIS and the shaft lock module each time the ignition switch is turned to
the ON position, and will store fault information in the form of a Diagnostic Trouble Code (DTC) if a system mal-
function is detected. The SKREEM will also send an electronic message to the instrument cluster if a fault is
detected, and the instrument cluster illuminates the security indicator or displays a textual shaft lock error message
in the Electronic Vehicle Information Center (EVIC) as appropriate. The SKIS can be diagnosed, and any stored
DTC can be retrieved using a diagnostic scan tool. Refer to the appropriate diagnostic information.
DIAGNOSIS AND TESTING
VEHICLE THEFT SECURITY SYSTEM/SENTRY KEY REMOTE ENTRY SYSTEM
SENTRY KEY IMMOBILIZER SYSTEM (SKIM)/SENTRY KEY REMOTE ENTRY SYSTEM
(SKREES)
Conventional diagnostic methods may not prove conclusive in the diagnosis of the Sentry Key REmote Entry Mod-
ule (SKREEM), sometimes referred to as the Wireless Control Module (WCM), and the Sentry Key Immobilizer Sys-
tem (SKIM), sometimes referred to as the Sentry Key Remote Entry System (SKREES), the ElectroMechanical
Instrument Cluster (EMIC), the Powertrain Control Module (PCM), the Controller Area Network (CAN) data bus, or
the electronic message inputs used to provide the electronic features of the SKREES. The most reliable, efficient,
and accurate means to diagnose the SKREEM, the EMIC, the PCM, the CAN data bus, and the electronic message
inputs for the SKREES requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.
SENTRY KEY REMOTE ENTRY SYSTEM DIAGNOSIS
CONDITION
POSSIBLE CAUSES
CORRECTION
SECURITY INDICATOR
FAILS TO LIGHT DURING
BULB TEST
1. Light-Emitting Diode (LED)
faulty.
1. Perform the instrument cluster actuator test.
(Refer to 8 - ELECTRICAL/INSTRUMENT
CLUSTER - DIAGNOSIS AND TESTING -
ACTUATOR TEST)..
2. Fuse faulty.
2. Check the SKREEM fused B(+) fuse and the
fused ignition switch output (run-start) fuse in the
Junction Block (JB). Replace fuses, if required.
3. Ground path faulty.
3. Check for continuity to ground at the connector
for the SKREEM. Repair wiring, if required.
4. Battery feed faulty.
4. Check for battery voltage at the connector for
the SKREEM. Repair wiring, if required.
5. Ignition feed faulty.
5. Check for battery voltage at the connector for
the SKREEM with the ignition switch in the On
position. Repair wiring, if required.
SECURITY INDICATOR
FLASHES FOLLOWING
BULB TEST
1. Invalid key in ignition
switch lock cylinder.
1. Replace the key with a known valid key.
2. Key-related fault.
2. Use a diagnostic scan tool and the appropriate
diagnostic information for further diagnosis.
SECURITY INDICATOR
LIGHTS SOLID FOLLOWING
BULB TEST
1. SKREES system
malfunction/fault detected.
1. Use a diagnostic scan tool and the appropriate
diagnostic information for further diagnosis.
2. SKREES system
inoperative.
2. Use a diagnostic scan tool and the appropriate
diagnostic information for further diagnosis.
VEHICLE THEFT SECURITY SYSTEM
However, conventional diagnostic methods may not prove conclusive in the diagnosis of the ElectroMechanical
Instrument Cluster (EMIC), the Front Control Module (FCM), the Controller Area Network (CAN) data bus, or the
electronic message inputs used to provide the electronic features of the VTSS. The most reliable, efficient, and
8Q - 128
VEHICLE THEFT SECURITY - SERVICE INFORMATION
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