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Home >> Chevrolet >> 2016 >> Camaro SS, 2D Convertible, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 71 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> DTC B2462: Global Positioning System (OnStar without EF7 or Z49) >> Circuit/System Testing
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Circuit/System Testing

WARNING: This page is about a different car, the 2015 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF, disconnect the GPS coax cable connector at the K73 Telematics Communication Interface Control Module.
  2. Connect the EL-49903  OnStar Antenna Diagnostic Tool Kit to the K73 Telematics Communication Interface Control Module. Place the test antenna on the roof of the vehicle, ignition ON.
  3. Verify DTC B2462 is not set.
    • If DTC B2462 is set  

      Replace the K73 Telematics Communication Interface Control Module.

    • If DTC B2462 is not set 
  4. Ignition OFF, disconnect the EL-49903  GM OnStar antenna diagnostic tool kit from the K73 Telematics Communication Interface Control Module
  5. Disconnect the K73 Telematics Communication Interface Control Module GPS coax cable at the T4E Cellular Phone and Navigation Antenna.
  6. Test the coax cable between the K73 Telematics Communication Interface Control Module and the T4E Cellular Phone and Navigation Antenna. Refer to component testing.
    • If the coax cable does not pass the test 

      Replace the coax cable.

    • If the coax cable passes the test 
  7. Test or replace the T4E Cellular Phone and Navigation Antenna.
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