Circuit/System Verification

2016 Chevrolet Express 2500 Base, Van Cargo, 6.6L Eng VIN LSECTION Circuit/System Verification
  1. Verify no DTCs are present.
    • If no DTCs are present 
  2. Verify the A11 Radio calibrations are current.
    • If the radio calibrations are not current 

      Reprogram the A11 Radio and re-evaluate the concern.

    • If no update calibrations are available 
  3. NOTE:

    The MIT tool can be used to test either cellular phone or streaming audio functions. Refer to the tool instructions, and perform the appropriate test(s) related to the customers concern in the following steps.

  4. Ignition ON, infotainment system ON.
  5. Verify the infotainment system successfully pairs with the MIT tool.
    • If the infotainment system does not successfully pair with the MIT tool. 

      Replace the A11 Radio.

    • If the infotainment system successfully pairs with the MIT tool. 
  6. Verify the infotainment system successfully completes the desired feature test using the MIT tool.
    • If the feature test is not successful 

      Replace the A11 Radio.

    • If the feature test is successful 
  7. All OK. Refer to Diagnostic Aids.
RENDER: 1.0x

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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.