Navigation Radio Malfunction
WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the GPS coax cable connector at the navigation radio.
- Connect the EL-49903 to the navigation radio; place the test antenna on the roof of the vehicle. See Special Tools .
- Verify the Navigation Radio functions while driving the vehicle.
- If the navigation radio does not function, replace the navigation radio.
- Ignition OFF, perform the coax cable test on the coax cable between the navigation radio and the navigation antenna signal splitter, refer to Component Testing . The coax cable should pass the test.
- If the coax cable does not pass the test, replace the T4G cellular phone, navigation, and digital radio antenna coax.
- If all circuits test normal, replace the navigation antenna signal splitter.