E 450 V8-5.4L (2009)
Power Distribution Module: Service and Repair
Smart Junction Box (SJB)
NOTE: Steering column opening cover shown removed for clarity.
Removal
NOTICE: Electronic modules are sensitive to static electrical charges. If exposed to these charges, damage to the module may result.
NOTE: Prior to the replacement of the module, it is necessary to upload the module configuration information to a scan tool. This information must be
downloaded into the new Smart Junction Box (SJB) after installation. In the event that As-Built data is required (SJB will 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: 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 manufacturing mode DTCs. The 7 manufacturing
mode DTCs are:
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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.
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B2477 (Module Configuration Failure)
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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)
1. NOTE: This step is only necessary if the SJB is being replaced.
Upload the module configuration information from the SJB into the scan tool.
2. Disconnect the 7 electrical connectors.
3. Remove the 3 nuts and the SJB.
Installation