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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 35 (AUTOMATIC TRANSMISSION - ALLISON - DIAGNOSTICS (DTCs P2724-P2771)) >> DTC P2771 >> Circuit Description

Circuit Description

WARNING: This page is about a different variant/trim than selected.

The four-wheel drive (4WD) low signal circuit is used to notify the transmission control module (TCM) that the vehicle is in 4WD low range.

DTC P2771 is a type B DTC.

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