F 250 4WD Super Duty V10-6.8L VIN S (2001)
RF: Radio Frequency.
RFI: Radio Frequency Interference.
RFS: Returnless Fuel System.
RM: Relay Module. A module containing two or more relays.
ROM: Read-Only Memory. Computer memory that can be accessed and utilized, but not altered.
RON: Research Octane Number.
Routine: A group of related tasks, such as a series of diagnostic tests.
RPM: Revolutions Per Minute.
RS: Reverse Switch.
RTN: Return. A dedicated sensor ground circuit.
RWD: Rear Wheel Drive.
SAE: Society of Automotive Engineers.
SBS: Supercharger Bypass Solenoid or its signal output from the PCM.
SC: Supercharged or Supercharger.
SCB: Supercharger Bypass Control. A system that allows manifold vacuum to be bled away from the supercharger wastegate actuator to allow for
maximum boost.
SCBF: Supercharger Bypass Control Fault. Identifies whether a fault exists in the Supercharger Bypass circuit.
SCICP: Supercharger Intercooler Pump Control.
SCICPF: Supercharger Intercooler Pump Control Fault.
SCIPC: The PID to monitor the operation of the Supercharger and Charge Air Cooler pump.
SCP: Standard Corporate Protocol.
Self- Test: See Quick Test.
Sensor: A device that detects the value or change in a physical quantity, such as temperature, pressure or flow rate, and converts the data into an
electrical signal.
SFI: Sequential Multi port Fuel Injection. A multiport fuel delivery system where each injector is individually energized and timed relative to its
cylinder intake event.
Shield: A conducting sleeve that surrounds wires to be electronically isolated from Electromagnetic Interference (EMI).
Short Circuit: An undesirable condition in a circuit where it is terminated at a point other than that intended.
SHRT FT: Short-Term Fuel Trim. Fuel flow adjustment in response to the HO2S sensor(s) input during closed-loop operation.
SIG RTN: Signal Return. A dedicated sensor ground circuit that is common to two or more sensors.
SIL: Shift Indicator Lamp.
Smart Driver: A PCM or ECU output driver that can detect faults (open or shorts) on its output circuit.
SME: Society of Manufacturing Engineers.
SOF: Shift-On-the-Fly.