LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 16 (Cellular, Entertainment, And Navigation System) >> Diagnostic Information and Procedures >> DTC B2462 (without UE1) >> Circuit/System Testing

Circuit/System Testing

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition OFF/vehicle OFF, disconnect the navigation antenna coax cable connector at the A11 Radio. Connect the EL-49903  GM OnStar antenna diagnostic tool kit to the A11 Radio, place the test antenna on the roof of the vehicle.
  2. Ignition ON/vehicle in Service Mode, radio ON, navigation selected.
  3. Verify DTC B2462 is not set.
    • If DTC B2462 is set 

      Replace the A11 Radio.

    • Go to next step: If DTC B2462 is not set 
  4. Ignition OFF/vehicle OFF, disconnect the radio navigation coax cable at the T4G Cellular Phone, Navigation, and Digital Radio Antenna.
  5. Verify the radio navigation coax cable passes the coax cable component test. Refer to Component Testing.
    • If the coax cable does not pass the test 

      Replace the coax cable

    • Go to next step: If the coax cable passes the test 
  6. Test or replace the T4G Cellular Phone, Navigation, and Digital Radio Antenna.
scientia non olet · About LEMON Manuals