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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 25 (ENGINE CONTROLS - 6.6L - DIAGNOSIS (DTCs P0016-P0401)) >> DTC P0045 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different variant/trim than selected.
IMPORTANT: Always perform the Turbocharger Learn Procedure. Refer to Turbocharger Learn Procedure , then review the DTC information with a scan tool.
  1. If DTCs P003A, P0698, P0699, P2564, or P2565 are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle for further diagnosis.
  2. Using a scan tool and with the engine at idle, observe the TC vane position sensor actual and the desired parameters while slowly increasing the engine speed from idle to 2,500 RPM, and slowly decreasing the engine speed to idle.
    • The TC vane position actual parameter should remain near or equal to the desired parameter throughout the engine speed range.
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