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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 94 (Engine Controls And Fuel - 2.8L (LWN) Diesel - Diagnostic Information And Procedures (3 Of 3)) >> Diagnostic Information and Procedures >> DTC P2122, P2123, P2127, P2128, or P2138 >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
5V Reference - APP Sensor 1 P0193, P06A3, P127D P2122, P2138 P0193, P06A3, P127D -
Signal - APP Sensor 1 P2122 P2122, P2138 P2123 P2138
Low Reference - APP Sensor 1 - P2123, P2138 - P2138
5V Reference - APP Sensor 2 P0697 P2127 P0697 -
Signal - APP Sensor 2 P2127 P2127, P2138 P2128 P2138
Low Reference - APP Sensor 2 - P2128, P2138 - P2138
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