Circuit/System Verification
WARNING: This page is about a different car, the 2007 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
Observe that the cellular antenna and cellular antenna coupling assembly are not damaged.
- If it is damaged, replace the cellular antenna.
- Disconnect the navigation antenna coax connector from the navigation antenna.
- Test for infinite resistance between the center conductor of the coax to the metal outer shield.
- If not specified value, replace the navigation antenna coax.
- Test for less than 1 ohm resistance of navigation antenna coax connector from end to end.
- If not specified value, replace the navigation antenna coax.
- If cellular antenna coax tests normal, test or replace the VCIM.