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Home >> Chevrolet >> 2006 >> Cobalt LTZ >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Engine Controls - 2.0L - DTC P0351 To DTC P2138) >> Diagnostic Information & 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 0.13 volt, or more than 4.87 volts for more than 0.4 second.

P2122 

The ECM detects that the APP sensor 1 voltage is less than 0.13 volt for more than 0.4 second.

P2123 

The ECM detects that the APP sensor 1 voltage is more than 4.87 volts for more than 0.4 second.

P2125 

The APP sensor 2 voltage is less than 0.13 volt, or more than 4.87 volts for more than 0.4 second.

P2127 

The ECM detects that the APP sensor 2 voltage is less than 0.13 volt for more than 0.4 second.

P2128 

The ECM detects that the APP sensor 2 voltage is more than 4.87 volts for more than 0.4 second.

P2138 

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

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