Ford Focus Service Manual: Fuses Junctions and Relays

Data and Communication Network

NOTE: The Smart Junction Box (SJB) is also known as the Generic Electronic Module (GEM) . Multiplexing is a method of sending 2 or more signals simultaneously over a single circuit. Multiplexing ...

Smart Junction Box (SJB)

Special Tool(s) Vehicle Communication Module (VCM) and Integrated Diagnostic System (IDS) software with appropriate hardware, or equivalent scan tool   ...

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Ford Focus Diagnostic Parameters Identification (PID) Chart
Using Output State Control and Accessing PIDs To confirm that the output state control value was sent by the scan tool and the PCM has accepted the output state control substitution, a corresponding PID or PIDs for each output state control parameter should be monitored. Additional PIDs shou ...