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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 142 (Supplemental Inflatable Restraint System) >> Diagnostics >> Diagnostic Trouble Codes (DTC'S)

Diagnostic Trouble Codes (DTC'S)

WARNING: This page is about a different car, the 2002 GMC Safari and 2002 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.

Sensing and Diagnostic Module (SDM) provides a record of Diagnostic Trouble Codes (DTC's), stored according to type. SDM performs diagnostic monitoring of SIR system electrical components and sets a DTC when a malfunction is detected. Current and history DTC's are stored in SDM and are accessed using a scan tool, such as Tech 2. Current DTC's are erased when fault is corrected using scan tool. History DTC's are erased following a preset number of ignition cycles.

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