Circuit/System Testing

2010 Chevrolet Aveo LT, 4D Hatchback, StandardSECTION Circuit/System Testing
WARNING: This page is about a different car, the 2011 Chevrolet Aveo. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: The vehicle may be equipped with sectioned coax. Test each section and replace only the faulty section, not the entire length of coax.
  1. Ignition OFF, disconnect the GPS and cellular coax cable connector at the VCIM.
  2. Using the EL-49903-5 adapter with EL-49903-4 coax cable, connect the EL-49903Β  EL-49903 to the VCIM. See Special ToolsΒ .
  3. Ignition ON, wait 5 minutes, and then contact the OnStar call center consultant by pressing the blue OnStar button. A call center consultant should answer the call.
    • If the unit does not connect to the OnStar Call Center, replace the VCIM.
  4. Ignition OFF, disconnect the EL-49903Β  EL-49903 from the VCIM and perform the coax cable test on the coax cable between the VCIM and the cellular antenna. See Special ToolsΒ .
    • If the coax cable does not pass the test, replace the coax cable.
  5. If all circuits test normal, replace the cellular antenna.
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:

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