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Home >> GMC >> 2011 >> Yukon Base, 5.3 3 >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Controls And Fuel - Hybrid (LZ1) - DTC P0351 Through DTC P3449 And Troubleshooting) >> Diagnostic Information and Procedures >> DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138 >> Conditions for Setting the DTC

Conditions for Setting the DTC

WARNING: This page is about a different variant/trim than selected.

P2120 

The APP sensor 1 voltage is less than 0.325 V, or greater than 4.75 V for greater than 0.4 s.

P2122 

The ECM detects that the APP sensor 1 voltage is less than 0.325 V for greater than 0.4 s.

P2123 

The ECM detects that the APP sensor 1 voltage is greater than 4.75 V for greater than 0.4 s.

P2125 

The APP sensor 2 voltage is less than 0.325 V, or greater than 4.75 V for greater than 0.4 s.

P2127 

The ECM detects that the APP sensor 2 voltage is less than 0.325 V for greater than 0.4 s.

P2128 

The ECM detects that the APP sensor 2 voltage is greater than 4.75 V for greater than 0.4 s.

P2138 

The voltage difference between APP sensor 1 and APP sensor 2 exceeds a predetermined value for greater than 2 s.

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