LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2013 >> Camaro LS, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 164 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> Unable to Contact OnStar Call Center >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2011 Chevrolet Camaro. 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 K73 telematics communication interface control module.
  2. Using the EL-49903-5 adapter with EL-49903-4 coax cable, connect the EL-49903  EL-49903 to the K73 telematics communication interface control module. See Special Tools .
  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 K73 telematics communication interface control module.
  4. Ignition OFF, disconnect the EL-49903  EL-49903 from the K73 telematics communication interface control module and perform the coax cable test on the coax cable between the K73 telematics communication interface control module and the T4D cellular phone and digital radio antenna. See Special Tools .
    • If the coax cable does not pass the test, replace the coax cable.
  5. If all circuits test normal, replace the T4D cellular phone and digital radio antenna.
scientia non olet · About LEMON Manuals