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Home >> Chevrolet >> 2021 >> Trailblazer RS, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Controls And Fuel - 1.0L (L4B L4F L4G LIJ) Or 1.2L (L4H L4K LIF LIH) - Diagnostic Information And Procedures (2 Of 2)) >> Diagnostic Information and Procedures >> DTC P2122, P2123, P2127, P2128, or P2138 >> Conditions for Setting the DTC

Conditions for Setting the DTC

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P2122 

APP Sensor 1 = Less than 0.46 V - For greater than 1 s

P2123 

APP Sensor 1 = Greater than 4.75 V - For greater than 1 s

P2127 

APP Sensor 2 = Less than 0.32 V - For greater than 1 s

P2128 

APP Sensor 2 = Greater than 2.6 V - For greater than 1 s

P2138 

APP Sensor 1 and 2 = Not within a calibrated range

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