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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 364 (Engine Controls And Fuel - 5.3L, 6.0L & 6.2L - DTC P0443 Through DTC P3449 And Troubleshooting) >> 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 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.
Circuit Short to Ground High Resistance Open Short to Voltage Signal Performance
APP Sensor 1 5 V Reference P2122 P2138 P2122 P2123 P2138
APP Sensor 2 5 V Reference P2127 P2138 P2127 P2128 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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