With Audio Unit (Without Display)
1. Verify that the continuity is as indicated in the table.

If not as indicated in the table, replace the GPS antenna feeder.

With Audio Unit (With Display)
NOTE:
GPS antenna feeder is integrated with the antenna feeder No.4.
1. Refer to ANTENNA FEEDER NO.4 INSPECTION
Global Positioning System (Gps) Antenna Removal/Installation
Gps Antenna Feeder Removal/InstallationClock Spring Removal/Installation
1. Disconnect the negative battery cable..
2. Remove the driver-side air bag module..
3. Remove the steering wheel..
4. Remove the column cover.
5. Remove the connectors.
6. Remove the tab direction of the arrow shown in the figure.
7. Remove the screws.
8. Remove the clock spring. ...
Center Roof Antenna Inspection
4SD
1. Disconnect the negative battery cable..
2. Remove the rain sensor cover. (Vehicles with auto light/wiper system).
3. Disconnect the rain sensor connector. (Vehicles with auto light/wiper system)
4. Partially peel back the seaming welts.
5. Remove the following parts:
a. Sunroof se ...
Forced Ignition On [With Advanced Keyless Entry And Push Button Start System]
NOTE:
In order to perform a forced ignition ON, the M-MDS (IDS) is necessary. If
the servicing is being done outside of an Authorized Mazda dealership, contact
an Authorized Mazda dealership for instructions.
The forced ignition ON procedure forces a power supply to each part w ...