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Home >> Chevrolet >> 2012 >> Suburban C2500 >> Repair and Diagnosis >> External Pages >> Different car >> Section 1898 (Engine Controls/Fuel - Hybrid (LZ1) - DTC P0351 To DTC P3449 And Diagnostic Information And Procedures) >> 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 car, the 2012 GMC Yukon, 2012 Chevrolet Tahoe, and 2012 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.

P2120 

The ECM detects the APP sensor 1 voltage is less than 0.46 V or greater than 4.75 V for greater than 1 s.

P2122 

The ECM detects the APP sensor 1 voltage is less than 0.46 V for greater than 1 s.

P2123 

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

P2125 

The ECM detects the APP sensor 2 voltage is less than 0.32 V, or greater than 2.6 V for greater than 1 s.

P2127 

The ECM detects the APP sensor 2 voltage is less than 0.32 V for greater than 1 s.

P2128 

The ECM detects the APP sensor 2 voltage is greater than 2.6 V for greater than 1 s.

P2138 

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

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