Navigator 4WD V8-5.4L (2010)
Body Control Module: Service and Repair
Smart Junction Box (SJB)
Smart Junction Box (SJB)
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. For additional information, refer to Information Bus. In the event that As-Built
data entry 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.
1. NOTE: This step is only necessary if the SJB is being replaced.
NOTE: The Tire Pressure Monitoring System (TPMS) functionality is integral to the SJB. 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:
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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)
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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)
-
C2780 (ECU in Manufacturer Sub-State)
Upload the module configuration information from the SJB into the scan tool. For additional information, refer to Information Bus.