1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Center panel.
b. Audio unit.
c. A-pillar trim (RH).
3. Disconnect antenna feeder No.2.

4. Verify that the continuity between antenna feeder No.1 terminals is as indicated in the table.

If not as indicated in the table, replace antenna feeder No.1.

Antenna Amplifier Removal/Installation
Antenna Feeder No.1 Removal/InstallationStop Vehicle in Safe Place Immediately
If any of the following warning lights turns on, the system may have a
malfunction. Stop the
vehicle in a safe place immediately and contact an Authorized Mazda Dealer.
...
Global Positioning System (Gps) Antenna Removal/Installation
With Audio Unit (Without Display)
1. Disconnect the negative battery cable..
2. Remove the following parts:
a. Upper column cover.
b. Instrument cluster.
3. Remove in the order indicated in the table.
1
Connector
2
Screw
...
Map Light Inspection
1. Disconnect the negative battery cable..
2. Remove the map light..
3. Verify that the continuity between the map light terminals is as indicated
in the table.
If not as indicated in the table, inspect the bulb. If there is no malfunction,
replace the map light.
4. ...