LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2011 >> Mustang Base, 2D Convertible, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1326 (MULTIFUNCTION Electronic Modules) >> Diagnosis And Testing >> Smart Junction Box (SJB) >> Principles of Operation >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Principles of Operation: Notes

WARNING: This page is about a different car, the 2010 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: The Smart Junction Box (SJB) is also known as the Generic Electronic Module (GEM).
NOTE: The time out for the battery saver relay and the accessory delay relay (both are controlled by the SJB  ) is 1 minute if the vehicle has less than 80 km (50 miles). Once the vehicle passes the approximate mileage threshold of 80 km (50 miles), the time out for both relays is 10 minutes, as described by the Owner's Literature. For the battery saver relay, refer to INTERIOR LIGHTING . For the accessory delay relay, refer to GLASS, FRAMES AND MECHANISMS .

The SJB  is connected to the Medium Speed Controller Area Network (MS-CAN). The SJB  is a combination of a multifunction electronic module and an interior fuse panel. The SJB  functions control multiple vehicle functions.

The SJB  has programmable parameters that can be programmed using the scan tool. Refer to MODULE CONFIGURATION for programmable parameters in the SJB  .