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Home >> Chevrolet >> 2009 >> Traverse LS, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 130 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> DTC B2462 (Communication Interface Module) >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2011 GMC Acadia, 2011 Chevrolet Traverse, and 2011 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the GPS and cell coax cable connector at the vehicle communication interface module.
  2. Using the EL-49903-3 kit (EL-49903-5 adapter and EL-49903-4 coax cable), connect the EL-49903  GM OnStar antenna diagnostic tool kit to the vehicle communication interface module, place the test antenna on the roof of the vehicle.
  3. Ignition ON, wait 5 minutes, then contact the OnStar call center consultant by pressing the blue OnStar button. A call center consultant should answer the call, ask the consultant to verify the vehicle location to confirm the GPS system is functioning.
    • If the OnStar GPS does not function, replace the vehicle communication interface module.
  4. Ignition OFF, perform the coax cable test on the coax cable, refer to Component Testing below. The coax cable should pass the test.
    • If the coax cable does not pass the test, replace the coax cable.
  5. If all circuits test normal, replace the radio antenna.
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