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Antenna Amplifier Inspection

WARNING: This page is about a different car, the 2014 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.5] .)
  2. Remove the following parts:
    1. Sunroof seaming welt (with sunroof system) (See SUNROOF UNIT REMOVAL/INSTALLATION .)
    2. A-pillar trim (See A-PILLAR TRIM REMOVAL/INSTALLATION .)
    3. Sunvisor (See SUNVISOR REMOVAL/INSTALLATION .)
    4. Front map light (See MAP LIGHT REMOVAL/INSTALLATION .)
    5. Assist handle (See ASSIST HANDLE REMOVAL/INSTALLATION .)
    6. Front scuff plate (See FRONT SCUFF PLATE REMOVAL/INSTALLATION .)
    7. Rear scuff plate (See REAR SCUFF PLATE REMOVAL/INSTALLATION .)
    8. B-pillar lower trim (See B-PILLAR LOWER TRIM REMOVAL/INSTALLATION .)
    9. Adjust anchor cover (See FRONT SEAT BELT REMOVAL/INSTALLATION .)
    10. Upper anchor installation bolt on the seat belt (See FRONT SEAT BELT REMOVAL/INSTALLATION .)
    11. B-pillar upper trim (See B-PILLAR UPPER TRIM REMOVAL/INSTALLATION .)
    12. Rear seat cushion (See REAR SEAT CUSHION REMOVAL/INSTALLATION .)
    13. Rear side seat back (See REAR SIDE SEAT BACK REMOVAL/INSTALLATION .)
    14. Tire house trim (See TIRE HOUSE TRIM REMOVAL/INSTALLATION .)
    15. C-pillar trim (See C-PILLAR TRIM REMOVAL/INSTALLATION .)
    16. Upper panel (See UPPER PANEL REMOVAL/INSTALLATION .)
    17. Shift lever knob (MTX) (See MANUAL TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION [C66M-R] .)
    18. Selector lever knob (ATX) (See AUTOMATIC TRANSAXLE SHIFT MECHANISM REMOVAL/INSTALLATION .)
    19. Shift panel (See SHIFT PANEL REMOVAL/INSTALLATION .)
    20. Rear console (See REAR CONSOLE REMOVAL/INSTALLATION .)
    21. Front console box (See FRONT CONSOLE BOX REMOVAL/INSTALLATION .)
    22. Side wall (See SIDE WALL REMOVAL/INSTALLATION .)
    23. Front console (See FRONT CONSOLE REMOVAL/INSTALLATION .)
    24. Headliner (See HEADLINER REMOVAL/INSTALLATION .)
  3. Switch the ignition ON (engine off or on).
  4. Turn the audio unit power to ON.
  5. Verify that voltage is B+ at the antenna amplifier terminal B.
    • If the battery voltage can be verified, replace the antenna amplifier.
      Fig 1: Identifying Antenna Amplifier
      G09788378Courtesy of MAZDA MOTORS CORP.
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