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Home >> GMC >> 2020 >> Terrain Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Electronic Transmission Range Select) >> Diagnostic Information and Procedures >> DTC P173A-P173F, P174B-P174D, P1771, P17AA-P17AE, P17B6-P17B9, P17BA-P17BD, P17BF, or P17C8 >> Circuit/System Description

Circuit/System Description

WARNING: This page is about a different car, the 2020 Chevrolet Equinox. 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.