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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 935 (Engine Controls And Fuel - 4.8L, 5.3L, 6.0L And 6.2L - DTC P0231 To DTC P1255) >> DTC P0231, P0232, or P023F >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2007 GMC Sierra, 2007 GMC Cab & Chassis Sierra, 2007 Chevrolet Silverado, and 2007 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0231, P0232, or P023F

Circuit Short to Ground Open or High Resistance Short to Voltage Signal Performance
Fuel Pump Voltage Circuit P0231 00 P023F 00 P0232 00 P023F 00
Fuel Pump Low Reference Circuit - P023F 00 - P023F 00
J420 Ground Circuit - P023F 00 - P023F 00
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