With Scan Tool

All SRS DTCs are read using flash code diagnostics. Flash code diagnostics are enabled by connecting a TECH 1 (with 3000015 adapter and Mass storage cartridge") to the DLC and selecting the proper function. Grounding terminal "TC" of the DLC pulls the Diagnosis and Memory circuits terminal "B9," of the center sensor assembly low and signals the center sensor assembly to enter flash code diagnostic display mode.