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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1970 (Engine Controls/Fuel - 5.3L, 6.0L, 6.2L - DTC P0420 To DTC P3449 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground High Resistance Open Short to Voltage Signal Performance
APP Sensor 1 5 V Reference P0651 P2138 P2122 P0651 P2138
APP Sensor 2 5 V Reference P0108, P0641 P2138 P2127 P0107, P0522, P0532, P0641 P2138
APP Sensor 1 Signal P2122 P2138 P2122 P2123 P2138
APP Sensor 2 Signal P2127 P2138 P2127 P2128 P2138
APP Sensor 1 Low Reference - P2138 P2123 - P2138
APP Sensor 2 Low Reference - P2138 P2128 - P2138
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