Diagnostic Trouble Codes (DTCs)

The Sensing & Diagnostic Module (SDM) provides a record of DTCs stored according to type. The SDM performs diagnostic monitoring of the SIR system electrical components and sets a Diagnostic Trouble Code (DTC) when a malfunction is detected. Current DTCs are stored in SDM and are erased when fault is corrected. Current DTCs can be read using a scan tool.

NOTE: A second occurrence of the same fault will cause the light to stay on even though the fault may have cleared. The DTC will be stored in history, and if intermittent the code may be active.