Trooper S V6-3.5L (1998)
Sensing And Diagnostic Module: Component Tests and General Diagnostics
Chart A: SDM Integrity Check
Circuit Description
When the SDM recognizes "ignition 1" voltage, applied to terminals "12", is greater than 9 Volts, the "AIR BAG" warning lamp is flashed 7 times to
verify operation. At this time the SDM performs "Turn-ON" tests followed by "Continuous Monitoring" tests. When a malfunction is detected, the SDM
sets a current diagnostic trouble code and illuminates the "AIR BAG" warning lamp. The SDM will clear current diagnostic trouble codes and move
them to a history file when the malfunction is no longer detected and/or the ignition switch is cycled, except for DTCs 19, 25, 51, 53 and 71. DTC 71 can
only be cleared using a scan tool "Clear Codes" command in case that the malfunction on DTC 71 has been solved and no DTCs 51 and 53 were
remained. DTCs 51, 53 and 71 can not be cleared after a "Clear Codes" command is issued.