Typical Scan Tool Data Table: Notes

2008 Chevrolet Chevy Express G2500, Van Cargo, 6.6 6SECTION Notes
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2009 GMC Savana Special, 2009 GMC Savana Camper Special, 2009 GMC Savana, 2009 Chevrolet RV Cutaway, and 2009 Chevrolet Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
CMP Command

Display Parameters Short to Ground Open/High Resistance Short to Voltage
Operating Conditions:  Engine speed greater than 900 RPMs in Park
Parameter Normal Range:  0-100%
CMP Command 0% 0% 0%
Desired CMP

Display Parameters Short to Ground Open/High Resistance Short to Voltage
Operating Conditions:  Engine speed greater than 900 RPMs in Park
Parameter Normal Range:  0-31°
Desired CMP
CMP Angle

Display Parameters Short to Ground Open/High Resistance Short to Voltage
Operating Conditions:  Engine speed greater than 900 RPMs in Park
Parameter Normal Range:  0-31°
CMP Angle
CMP Variance

Display Parameters Short to Ground Open/High Resistance Short to Voltage
Operating Conditions:  Engine speed greater than 900 RPMs in Park
Parameter Normal Range: 
CMP Variance
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.