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Chart C Air Bag Warning Lamp Does Not Comes ON

Diagnostic Chart:




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 whether the malfunction is in the SDM circuitry or in the instrument cluster power feed circuitry.
2. This test determines whether voltage is present in the warning lamp circuit.
3. This test determines if the malfunction is in the instrument cluster.
4. This test isolates an open in the warning lamp circuitry.
5. This test isolates CKT 358 and checks for a short in CKT 358 to B+.
6. This test checks whether power is available to the instrument cluster power feed circuit.
7. This test checks for a short from the instrument cluster power feed circuit to ground.
8. This test determines whether the short to ground is due to a short in the wiring or internal to the instrument cluster.
9. This test determines whether the malfunction is due to an open power feed circuit from the "GAGES" fuse.