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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 382 (Immobilizer System) >> Diagnostic Information and Procedures >> DTC B1981 >> Action Taken When the DTC Sets

Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

Vehicle starting will be disabled if two or more modules set the No Environment Identifier Received DTC.

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