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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 214 (Electronic Transmission Range Select) >> Diagnostic Information and Procedures >> DTC B2B9B >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

The internal fault detection is handled inside the device. No external circuit diagnosis is involved.