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Home >> GMC >> 2006 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1059 (Engine Controls And Fuel - 6.6L - DTC P2510 To DTC P2693) >> DTC P2563 >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Verify that DTCs P003A, P0047, P0048, P0698, P0699, P2564, P2565 are not set.
  2. Engine running, observe the TC Vane Position Sensor and the desired TC Vane Position Sensor parameters. Command the TC vane position sensor in 5 percent increments, from 0-100 percent. The TC Vane Position Sensor and the Desired TC Vane Position parameters should remain within 2 percent of each other.
  3. Engine running at idle speed, observe the scan tool TC Vane Position Sensor and the Desired TC Vane Position parameters while slowly increasing the engine speed to 2,500 RPM and slowly returning to idle speed. The TC Vane Position Sensor parameter should remain within 2 percent of the Desired TC Vane Position parameter throughout the engine speed range.
  4. Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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