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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 349 (HVAC System - Automatic) >> Diagnostic Information and Procedures >> DTC B1023 >> DTC Descriptor

DTC Descriptor

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2011 GMC Yukon XL, 2011 GMC Yukon, 2011 Chevrolet Tahoe, 2011 Chevrolet Suburban, and 2011 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
DTC B1023 05

Integral Switch Performance Short to Ground

DTC B1023 06

Integral Switch Performance Short to Battery or Open

DTC B1023 61

Integral Switch Performance Signal Invalid

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