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Home >> Cadillac >> 2023 >> CT4 V, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 2.7L - Description And Operation >> Description and Operation >> Engine Control Module Description >> Emissions Diagnosis For State I/M Programs

Emissions Diagnosis For State I/M Programs

This OBD II equipped vehicle is designed to diagnose any conditions that could lead to excessive levels of the following emissions:

The ECM turns ON the MIL and stores a DTC when the on-board diagnostic system detects a condition that could result in excessive emissions.