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Home >> Cadillac >> 2000 >> Catera >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - 3.0L >> Diagnostic Tests >> DTC P1530: TAC Module Internal Circuit >> Circuit Description

Circuit Description

The ECM will illuminate MIL and records the operating conditions in the Freeze Frame data on the second consecutive drive trip that the diagnostic runs and fails. DTC will clear when ECM turns off MIL after 3 consecutive drive trips that the diagnostic runs and passes. A history DTC clears after 40 consecutive warm-up cycles in which no failures are reported of this diagnostic or any other emission related diagnostic. DTC will also clear when battery is disconnected or cleared by scan tool.