Chart B Warning Lamp Comes On Steady

Diagnostic Chart:

CIRCUIT DESCRIPTION
When the ignition switch is first turned to "RUN," "Ignition 1" voltage is applied from "GAGES" Fuse to the "AIR BAG" warning lamp which is connected to "SIR Indicator," terminal "7." The "AIR BAG" fuse applies system voltage to the "Ignition 1" input, terminal "10." The SDM responds by flashing the "AIR BAG" warning lamp seven times. If "Ignition 1" is outside of the normal operating voltage range, the "AIR BAG" warning lamp will come "ON" solid with no DTCs set.

CHART TEST DESCRIPTION
Number(s) below refer to circled number(s) on the diagnostic chart.
1. This test determines if "Serial Data" communication can be established with the SDM. Successful communication indicates that the SDM is properly connected.
2. This test checks for sufficient "Ignition 1" voltage applied to the SDM.
3. This test checks for a correctly installed CPA.
4. This test determines whether the malfunction is a short to ground in CKT 358.
5. This test checks for a disconnected SDM.
6. An open "AIR BAG" fuse would cause the "AIR BAG" warning lamp to come "ON" steady.
7. This test checks for an open in the "Ignition 1" circuit.
8. This checks whether a short to ground caused the "AIR BAG" fuse to open.
9. This test determines whether the short to ground is due to a short in the wiring or internal to the SDM.