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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1377 (Engine Controls And Fuel - 4.3L - DTC P0340 To DTC P2138) >> DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 >> Conditions for Setting the DTC >> P2123

Conditions for Setting the DTC: P2123

WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

The ECM detects that the APP sensor 1 voltage is more than 4.75 volts for more than 0.4 second.

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