RAM 2500 Truck 4WD V8-5.7L VIN D (2005)
The SKIM also sends electronic messages to the EMIC which control the VTSS indicator. The SKIM sends messages to the EMIC to turn the indicator
on for about three seconds when the ignition switch is turned to the On position as a bulb test. After completion of the bulb test, the SKIM sends bus
messages to keep the indicator off for a duration of about one second. Then the SKIM sends messages to turn the indicator on or off based upon the
results of the SKIS self-tests. If the VTSS indicator comes on and stays on after the bulb test, it indicates that the SKIM has detected a system
malfunction and/or that the SKIS has become inoperative.
If the SKIM detects an invalid key when the ignition switch is turned to the On position, it sends messages to flash the VTSS indicator. The SKIM can
also send messages to flash the indicator and to generate a single audible chime whenever the Customer Learn programming mode is being utilized.
The SKIS will store fault information in the form of Diagnostic Trouble Codes (DTC's) in SKIM memory if a system malfunction is detected. For
diagnosis or initialization of the SKIM and the PCM/ECM, a diagnostic scan tool is required.