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Connectivity Master Unit (CMU) Removal/Installation

NOTE:
  • The Bluetooth® pairing information stored in the CMU cannot be written to a new CMU. Therefore, the Bluetooth® pairing information will be eliminated if the CMU is replaced. Before replacing the CMU, explain to the customer that the Bluetooth® pairing resetting is required.
  1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION (US) .)
  2. Remove the passenger-side decoration panel. (See DECORATION PANEL REMOVAL/INSTALLATION .)
  3. Remove the bolts.
    Fig 1: Connectivity Master Unit (CMU) Bolts With Torque Specification
    G13179814Courtesy of MAZDA MOTORS CORP.
  4. Remove the CMU in the direction of the arrow shown in the figure.
    G13179815Courtesy of MAZDA MOTORS CORP.
  5. Disconnect the connectors.
    G13179816Courtesy of MAZDA MOTORS CORP.
  6. Install in the reverse order of removal.
  7. If the connectivity master unit (CMU) is replaced, perform the following procedure.
    1. Switch the ignition ON (engine off) to complete the global central configuration (GCC) for the connectivity master unit (CMU).
    2. Switch the ignition OFF.
    3. Switch the ignition ON (engine off) again.
    4. Clear the DTC. (See CLEARING DTC .)
    5. Install the owner's manual data using the diagnostic assist function.
    NOTE: