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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1645 (Engine Control System & Fuel System - 4.8L, 5.3L, 6.0L, 6.2L - DTC P0300 To DTC P1175) >> DTC P0601-P0604, P0606, or P062F >> Circuit/System Description

Circuit/System Description

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The internal fault detection is handled inside the fuel pump control module. No external circuits are involved.