B2300 L4-2.3L (2008)
Power Distribution Module: Service and Repair
SMART JUNCTION BOX (SJB)
Smart Junction Box (SJB)
Removal
Caution: Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage may result.
NOTE:
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Prior to the replacement of the module, it is necessary to upload the module configuration information into the appropriate scan tool. This
information must be downloaded into the new module after installation.
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The tire pressure monitoring system (TPMS) functionality is integral to the SJB.
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The steps included in the SJB removal and installation procedure are critical to restoring the vehicle security and tire pressure monitoring
systems to normal operation. A new SJB module is delivered in manufacturing mode with pre-set DTCs. These DTCs require that the TPMS
sensor training procedure be carried out in order for the DTCs to be cleared. The pre-set DTCs are as follows:
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B106D - Tire Pressure Monitor System (TPMS) Initiators Not Configured
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B2477 - Module Configuration Failure
