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/InstallationCombination Switch Disassembly/Assembly
CAUTION:
Handling the air bag module improperly can accidentally deploy the air bag
module, which may seriously injure you. Read the air bag system service warnings
and cautions before handling the air bag module..
1. Switch the ignition to off.
2. Disconnect the negative batte ...
Stop 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.
...
Fuel Injector Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING:
Fuel is very flammable liquid. If fuel spills or leaks from the pressurized
fuel system, it will cause serious injury or death and facility breakage. Fuel
can also irritate skin and eyes. To prevent this, always complete the “Fuel
Line Safety Procedure”, while referring ...