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Body Control Module (BCM) Removal/Installation: Mt

WARNING: This page is about a different car, the 2016 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.
  1. If the BCM is replaced and the auto configuration is not performed, perform the configuration using the M-MDS. (See BODY CONTROL MODULE (BCM) CONFIGURATION (USING READ/WRITE FUNCTION) .)
  2. Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION .)
  3. Remove the scuff plate (driver's side). (See SCUFF PLATE REMOVAL/INSTALLATION .)
  4. Remove the front side trim (driver's side). (See FRONT SIDE TRIM REMOVAL/INSTALLATION .)
  5. Disconnect the connector.
    Fig 1: Disconnecting Connector
    G10955125Courtesy of MAZDA MOTORS CORP.
  6. Remove the vehicle wiring harness clip.
    Fig 2: Removing Vehicle Wiring Harness Clip
    G10955126Courtesy of MAZDA MOTORS CORP.
  7. Remove the BCM connectors shown in the figure.
    Fig 3: Removing BCM Connectors
    G10955127Courtesy of MAZDA MOTORS CORP.
  8. While pressing the BCM tab in the direction of arrow (1) shown in the figure, pull it in the direction of arrow (2) to detach the tab from the body.
    Fig 4: Pressing BCM Tab
    G10955128Courtesy of MAZDA MOTORS CORP.
  9. Pull the BCM in the direction of the arrow shown in the figure and detach the hook from the body.
    Fig 5: Pulling BCM
    G10955129Courtesy of MAZDA MOTORS CORP.
  10. Remove the BCM connector shown in the figure.
    Fig 6: Removing BCM Connector
    G10955130Courtesy of MAZDA MOTORS CORP.
  11. Remove the BCM.
  12. Install in the reverse order of removal.
  13. If the BCM is replaced and the auto configuration is performed, perform the auto configuration using the following procedure.
    1. Switch the ignition ON (engine off or on) and wait for 1 min or more  .
    2. Switch the ignition off and wait for 3 s or more  .
    3. Switch the ignition ON (engine off or on) and complete the BCM auto configuration.
    4. Using the M-MDS, verify that DTCs U2300:54, U2300:55, or U2300:56 is not displayed.
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