Smart Junction Box (SJB): Removal
WARNING: This page is about a different car, the 2009 Mercury Milan, 2009 Lincoln MKZ, and 2009 Ford Fusion. 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 to the module may result.
NOTE:
Prior to the removal of the module, it is necessary to upload the module configuration information to a scan tool. This information must be downloaded into the new SJB after installation. For additional information, refer to MODULE CONFIGURATION
article.
- B106D (Tire Pressure Monitor System [TPMS] Initiators Not Configured) This DTC is present when the SJB is not configured, even on applications that are not equipped with initiators.
- 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)
- C2780 (ECU in Manufacturer Sub-State)
- Upload the module configuration information from the SJB into the scan tool. For additional information, refer to MODULE CONFIGURATION article.
- Disconnect the 6 electrical connectors.
- Remove the 2 nuts and the SJB.
NOTE:
The tire pressure monitoring system (TPMS) functionality is integral to the SJB.
NOTE:
This step is only necessary if the SJB is being replaced.
NOTE:
A new SJB is delivered in a "manufacturing mode" with 7 pre-set DTCs. A successful configuration of the SJB, then a successful TPMS sensor training, then a successful self-test including the clearing of all DTCs is required in order to clear the 7 pre-set manufacturing mode DTCs. The 7 manufacturing mode DTCs are: