Ranger 4WD V6-4.0L (2009)
Power Distribution Module: Service and Repair
Smart Junction Box (SJB)
Removal
NOTICE: 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 into the appropriate scan tool. This
information must be downloaded into the new module after installation.
NOTE: The Tire Pressure Monitoring System (TPMS) functionality is integral to the Smart Junction Box (SJB).
NOTE: The steps included in the SJB removal and installation procedure are critical to restoring the tire pressure monitoring system to normal
operation. A new SJB is delivered in a manufacturing mode with 7 pre-set TPMS DTCs. To clear the 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 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)
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B2868 (Left Front Tire Pressure Sensor Fault)
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B2869 (Right Front Tire Pressure Sensor Fault)
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B2870 (Right Rear Tire Pressure Sensor Fault)
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B2871 (Left Rear Tire Pressure Sensor Fault)
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C2780 (ECU in Manufacturer Sub-State)
1. NOTE: This step is necessary only if the SJB is being replaced.
Upload the module configuration information from the SJB.
2. Remove the RH lower cowl trim panel.
3. Disconnect the electrical connectors.