Circuit Description
WARNING: This page is about a different car, the 1998 Pontiac Bonneville, 1998 Oldsmobile Regency, 1998 Oldsmobile LSS, 1998 Oldsmobile Eighty-Eight, and 1998 Buick LeSabre. However, it is still accessible from the selected car via links, so may be relevant.
When SDM recognizes IGNITION POSITIVE VOLTAGE applied to terminal No. 10 is greater than 8.2 volts, AIR BAG warning light is flashed 7 times to verify operation. SDM performs POWER-ON tests followed by RESISTANCE MEASUREMENT test and CONTINUOUS MONITORING tests. When a malfunction is detected, SDM sets a current DTC and turns AIR BAG warning light ON. SDM clears current DTCs and move them to a history file when malfunction is no longer detected or ignition switch is cycled, except for DTCs B1018, B1024, B1051, B1053 and B1071. DTCs B1018, B1024, B1051, and B1053 will not clear using scan tool CLEAR CODES. Repair malfunction that set DTC before replacing SDM.