Hombre S Regular Cab 4WD V6-4.3L (1999)
Sensing And Diagnostic Module: Component Tests and General Diagnostics
Steps 3 - 4
Circuit Description
When the supplemental restraint sensing and diagnostic module (SDM) recognizes that the IGNITION 1 voltage applied to terminal 10 is greater than
8.2 volts, the SDM flashes the AIR BAG warning lamp 7 times in order to verify operation. At this time the SDM performs the POWER-ON test
followed by the RESISTANCE MEASUREMENT test and the CONTINUOUS MONITORING test. Upon detection of a malfunction, the SDM sets a
current diagnostic trouble code (DTC) and illuminates the AIR BAG warning lamp. The SDM will clear the current DTCs and preserve them in a history
file when the following items occur:
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The malfunction is no longer detected.
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The ignition switch is cycled.
This does not include the following latched codes:
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B1018
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B1024
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B1051
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B1053
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B1071
The following DTCs are latched codes:
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B1018
-
B1024
-
B1051
-
B1053
You cannot clear a latched code. DTC B1071 may not clear after you issue a clear codes command.
Important: Repair the malfunction that set the DTC before you replace the SDM.
Step 1
