Ranger 2WD L4-2.3L (2009)
Body Control Systems: Description and Operation
Module Controlled Functions
NOTE: The Smart Junction Box (SJB) is also known as the Generic Electronic Module (GEM).
The SJB is the only multifunction electronic module on this vehicle. The SJB is a combination of a multifunction electronic module and a Central
Junction Box (CJB). The following systems are controlled by the SJB:
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Accessory delay relay
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Battery saver relay
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Daytime Running Lamps (DRL) driver
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Fog lamp relay
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Horn relay
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Illuminated entry and interior lighting
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Parking lamps
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Power door locks (if equipped)
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Remote Keyless Entry (RKE) system (if equipped)
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Tire Pressure Monitoring System (TPMS) (if equipped)