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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 942 (Engine Controls And Fuel - 6.6L (LMM) - DTC P154B To DTC P2693) >> DTC P2453 >> Circuit/System Verification

Circuit/System Verification

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.
  1. Verify that DTCs P0101, P0102, P0103, P0234, P0299, P0300-P0308, P0401, P0402, P0652, P0653, P0698, P0699, or P2563 are not set.
  2. Ignition ON, engine OFF, observe the scan tool Particulate Filt. Pressure Variance parameter. The value should be between -1.0 and +0.3 kPa.
  3. Engine running at idle, observe the scan tool Particulate Filt. Pressure Variance parameter. The value should be between 0.0-3.0 kPa.
  4. Engine running at idle, observe the scan tool Particulate Filt. Pressure Variance parameter. Increase the engine speed to 3,000 RPM. The value should increase.
  5. 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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