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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1375 (Engine Controls And Fuel - 6.6L - DTC P02E8 To DTC P1247) >> DTC P0642 or P0643 >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground High Resistance Open Short to Voltage
Crankshaft 58 X - 5-Volt Reference P0642 P0335, P2453 P0335, P2453 P0341, P0401, P0643
Camshaft 4 X - 5-Volt Reference P0642 P0340 P0340 P0340, P0401, P0643
Intake Air Flow Valve P0642 P02E7 P02E8 P0401, P0643
Fuel Tank Level Sensor 2 P0642, P2067 P2068 P2068 P0643, P2068
EV Fan Sensor P0117, P0462, P0522, P0642 - P0526 P0118, P0455, P0533, P0643
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