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Smart Junction Box (SJB): Removal

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage may result.
NOTE: Prior to the replacement of the module, it is necessary to upload the module configuration information to the appropriate scan tool. This information must be downloaded into the new module after installation. For additional information, refer to MODULE CONFIGURATION . In the event that As-Built data entry is required (the Smart Junction Box (SJB) does not communicate), all Remote Keyless Entry (RKE) devices must be programmed to the new SJB  . A minimum of 2 devices are necessary to complete the configuration and turn off the flashing interior lights.
NOTE: The Tire Pressure Monitoring System (TPMS) functionality is integrated into the SJB  .
NOTE: The steps included in the SJB  removal and installation procedure are critical to restoring the vehicle security and TPMS  to normal operation. A new SJB  is delivered in a manufacturing mode with 8 pre-set DTCs related to the TPMS  . To clear the 8 DTCs, successful configuration of the SJB  must occur, followed by successful TPMS  sensor training, and a successful self-test, including clearing of the DTCs. The 8 DTCs are as follows:
  • B106D (Tire Pressure Monitor System [TPMS  ] Initiators Not Configured)
  • B2477 (Module Configuration Failure)
  • B2868 (Left Front Tire Pressure Sensor Fault)
  • B2869 (Right Front Tire Pressure Sensor Fault)
  • B2870 (Right Rear Tire Pressure Sensor Fault)
  • B2871 (Left Rear Tire Pressure Sensor Fault)
  • B2A21 (One or More Configuration Files Missing or Corrupt)
  • C2780 (ECU  in Manufacturer Sub-State)
    NOTE: This step is necessary only if the SJB  is being replaced.
  1. Upload the module configuration information from the SJB  into the scan tool. For additional information, refer to MODULE CONFIGURATION .
  2. Remove the driver door scuff plate.
  3. Disconnect the electrical connectors.
  4. Remove the harness pushpin from the SJB  .
  5. Remove the nut.
  6. Lower the SJB  (release the SJB  from the 2 alignment holes).
  7. Push the red lock tab upward and press the 2 black tangs inward to release the B+ connector from the SJB  .
  8. Remove the SJB  .
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