Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Conditions for Running the Test
2010 Chevrolet RV Cutaway 6.6 LSECTION Conditions for Running the Test
WARNING: This page is about a different car, the 2010 GMC Savana and 2010 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
The following conditions must be met in order to enable the Service Bay Test:
- The battery voltage is between 11-18V.
- The engine coolant temperature (ECT) is less than 35°C (95°F) at start-up.
- The EVAP inspection/maintenance system status indicator is set to NO.
- The fuel level is 15-85 percent capacity and cannot be refueled during the tests.
- There are no DTCs displayed.
- The vehicle must be driven for the time and distance specified on the scan tool.
- The ambient air temperature is between 0-40°C (32-104°F).
- The ignition must remain OFF during the engine OFF portion of the test, and the vehicle must remain at rest.
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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.