AIR BAG Warning Lamp Does Not Come On

Circuit Description
When the ignition switch is turned to the ON position, the CLAMP 15 CRUISE Fuse applies battery voltage to the AIR BAG warning lamp that is connected to the INFLATABLE RESTRAINT INDICATOR, terminal 6, of the Inflatable Restraint Sensing and Diagnostic and Seat Belt Pretensioner Module (SDM). The ignition switch applies battery voltage to the IGNITION input, terminal 5, of the SDM. The SDM responds by flashing the AIR BAG Warning Lamp seven times and then turning it OFF. The SDM monitors the lamp output driver by comparing the output state at the INFLATABLE RESTRAINT INDICATOR, terminal 6, to the microprocessor commanded state.

Diagnostic Aids
In order to disable the shorting bar from terminal 6 to terminal 7 inside the Inflatable Restraint Sensing and Diagnostic and Seat Belt Pretensioner Module (SDM) wiring harness connector, the SDM wiring harness connector must be properly connected to the SDM.

When measurements are requested in this table, use d 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. Intermittents and Poor Connections

Test Description
2. This step checks to see if DTC 43 or DTC 44 is present.
4. This step checks terminal 13 and terminal 19 of the instrument cluster wiring harness connector for corrosion or damaged terminals.
6. This step checks terminal 13 and terminal 19 of the instrument cluster for corrosion or damaged terminals.
8. This step checks to see if the AIR BAG warning lamp is OK.
10. This step checks the AIR BAG warning lamp socket within the instrument cluster for corrosion or damaged terminals.
11. This step checks terminal 5 and terminal 6 of the SDM wiring harness connector for corrosion or damaged terminals.
15. This step checks for an open or a high resistance in CKT XB20.
17. This step checks for an open or a high resistance in CKT X30.
16. This step determines if there is a short to B+ in CKT XB20 or if there is a malfunctioning SDM.