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Home >> Buick >> 2007 >> Allure CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 70 (Engine Control System & Fuel System - 3.8L - DTC P0385 To DTC P2108) >> DTC P1125, P2120, P2125, or P2138 >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
APP Sensor 1 Signal P1125, P2120, P2138 P1125, P2120, P2138 P1125, P2120, P2138 -
APP Sensor 1 5-Volt Reference P1125, P2120, P2138 P1125, P2120, P2138 P1125, P2120, P2138 -
APP Sensor 1 Low Reference - P1125, P2120, P2138 - -
APP Sensor 2 Signal P2125, P2138 P2125, P2138 P2125, P2138 -
APP Sensor 2 5-Volt Reference P1125, P2125, P2138 P1125, P2125, P2138 P1125, P2125, P2138 -
APP Sensor 2 Low Reference - P1125, P2125, P2138 - -