Orlando

No Global Positioning System (GPS) Reception

The global positioning system (GPS) aerial is connected to the navigation radio by a shielded coaxial cable. The GPS aerial is powered through the same coaxial cable used to send signals to the navigation system.

The global positioning system (GPS) requires a clear line of sight to the sky to operate properly. In most cases the GPS will not have reception near tall buildings or inside structures.

Schematic Reference

Radio/Navigation System Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

Navigation System Description and Operation

Electrical Information Reference

Scan Tool Reference

Control Module References for scan tool information

1. Ignition OFF, disconnect the navigation aerial coax cable from the A11 radio.
2. Ignition ON, test for 4.5-5.5 V between the coax cable connection centre conductor at the radio and ground.

⇒	If not within the specified range, replace the radio.

3. Ignition OFF, reconnect the navigation aerial coax cable at the A11 radio.
4. Disconnect the aerial coax cable from the T4M navigation aerial.
5. Ignition ON, test for 4.5-5.5 V between the coax cable centre conductor and the outer shield.

⇒	If not within the specified range, replace the coax cable.

6. If all circuits test normal, replace the T4M navigation aerial.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.