Lamp Flashes Seven Times, Then DTC 12

Lamp Flashes Seven Times, Then DTC 12:

Wiring Diagram:

CIRCUIT DESCRIPTION
When the ignition switch is first turned to the ON position, the IG-COIL Fuse applies IGNITION 1 voltage to the AIR BAG warning lamp that is connected to the AIR BAG INDICATOR, terminal 7. The AIR BAG fuse applies system voltage to the IGNITION 1 input, terminal 8. The inflatable restraint Sensing and Diagnostic Module (SDM) responds by flashing the AIR BAG warning lamp seven times, which indicates that the SIR system is free from malfunctions. When the diagnostic request line is jumpered to ground, the SDM will flash the AIR BAG warning lamp in order to indicated if DTCs are present and, if so, what DTCs are present.

When measurements are requested in this table, use J 39200 Digital Multimeter with the correct terminal adapter from J 35616-A Connector Test Adapter Kit. When a check for proper connection is requested, refer to Intermittents and Poor Connections. When a wire, connector or terminal repair is requested, use J 38125-B Terminal Repair Kit and refer to Wiring Repair. Intermittents and Poor Connections

TEST DESCRIPTION
The numbers below refer to the step numbers on the diagnostic table.
2. This test determines whether the malfunction is in the SDM circuitry or in the wiring.