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HOMESERVICE MANUALSFORD2009RANGER 2D PICKUP, 2.3 D, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1 (ENGINE CONTROLS - INTRODUCTION (EXCEPT DIESEL & HYBRID))ACRONYMS AND DEFINITIONS
2009 Ford Ranger 2D Pickup, 2.3 D, Automatic

Acronyms and Definitions

2009 Ford Ranger 2D Pickup, 2.3 D, AutomaticSECTION Acronyms and Definitions
WARNING: This page does not describe the selected car, but rather 32 other vehicles, including the 2008 Mercury Sable, 2008 Mercury Mountaineer, 2008 Mercury Milan, 2008 Mercury Mariner, and 2008 Mercury Grand Marquis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: This acronyms and definitions listing contains technical terms applicable to Ford Motor Company products. It is not intended to be an all-inclusive dictionary of components and their functions. If a detailed description of a particular system or component is desired, refer to the applicable part within this PC/ED article or refer to the Workshop Manual for additional information regarding the specific vehicle being repaired.
  1. 2V: Two valves per engine cylinder
  2. 3V: Three valves per engine cylinder
  3. 4V: Four valves per engine cylinder
  4. 4WD: Four Wheel Drive
  5. ABS: Antilock Braking System
  6. A/C: Air Conditioning
  7. A/CC: Air Conditioning Clutch
  8. A/CCR: Air Conditioning Clutch Control Relay
  9. ACCS: Air Conditioning Cycling Switch
  10. ACET: Air Conditioning Evaporator Temperature
  11. ACP: Air Conditioning Pressure
  12. ACPSW: Air Conditioning Pressure Switch
  13. A/D: Analog-to-Digital. Analog-to-Digital signal conversion.
  14. APP: Accelerator Pedal Position
  15. BARO: Barometric Pressure
  16. BJB: Battery Junction Box
  17. BPP: Brake Pedal Position
  18. BPS: Brake Pedal Switch
  19. BTDC: Before Top Dead Center
  20. CAC: Charge Air Cooler. A device which lowers the temperature of pressurized intake air.
  21. CAN: Controller Area Network
  22. CCM: Comprehensive Component Monitor
  23. CF: Cooling Fan
  24. CHT: Cylinder Head Temperature
  25. CKP: Crankshaft Position
  26. CL: Closed Loop. An operating condition or mode which enables operation based on sensor feedback.
  27. CMCV: Charge Motion Control Valve
  28. CMP: Camshaft Position
  29. CO: Carbon Monoxide. A colorless, odorless, and toxic gas that is a component of auto exhaust emissions.
  30. CO2 : Carbon Dioxide. A colorless, odorless gas that is a normal by-product of the combustion of fuel.
  31. COP: Coil On Plug. Ignition coil on plug assembly.
  32. CPP: Clutch Pedal Position
  33. CPU: Central Processing Unit
  34. CTO: Clean Tach Output. Signal used to drive the instrument panel tachometer.
  35. CV: Canister Vent Solenoid. A solenoid which seals the evaporative emission (EVAP) system from the atmosphere during the EVAP monitor test.
  36. CVT: Continuously Variable Transmission
  37. DBA: Driver Brake Application
  38. DC: 1. Direct Current. Electric current flowing in one direction. 2. Duty Cycle. The voltage measurement of ON time versus the full cycle period, expressed in percent.
  39. DEPS: Dual Equal Phase Shifting
  40. DIPS: Dual Independent Phase Shifting
  41. DLC: Data Link Connector. SAE standard J1962 connector providing access to vehicle diagnostic information.
  42. DMM: Digital Multimeter
  43. DRI: Deposit Resistant Injector
  44. DTM: Diagnostic Test Mode. A level of capability in an OBD system.
  45. DTC: Diagnostic Trouble Code. An alpha/numeric identifier for a concern identified by the OBD system.
  46. E10: Fuel containing 10% ethanol
  47. E85: Fuel containing 85% ethanol
  48. EATC: Electronic Automatic Temperature Control
  49. ECM: Electronic Control Module
  50. ECT: Engine Coolant Temperature
  51. EEC: Electronic Engine Control
  52. EEGR: Electric Exhaust Gas Recirculation
  53. EEPROM: Electrically Erasable Programmable Read-Only Memory
  54. EGR: Exhaust Gas Recirculation
  55. EI: Electronic Ignition
  56. EMD: Engine Manufacturers Diagnostics
  57. EMI: Electromagnetic Interference. Usually caused by ignition voltage spikes, solenoids, relay operation, or noisy generator contacts.
  58. EONV: Engine Off Natural Vacuum
  59. EOT: Engine Oil Temperature
  60. EPS: Exhaust Phase Shifting
  61. E-Quizzer: Enhanced Quizzer
  62. ERFS: Electronic Returnless Fuel System
  63. ESM: EGR System Module
  64. ESOF: Electronic Shift-on-the-Fly
  65. ETB: Electronic Throttle Body
  66. ETBTACM: Electronic Throttle Body Throttle Actuator Control Motor
  67. ETBTPS: Electronic Throttle Body Throttle Position Sensor
  68. ETC: Electronic Throttle Control
  69. ETCREF: Electronic Throttle Control Reference Voltage
  70. ETCRTN: Electronic Throttle Control Return
  71. EVAPCP: Evaporative Canister Purge Valve. A valve which controls the venting of fuel vapor from the evaporative emissions canister into the intake manifold for combustion.
  72. FAOS: Fore-Aft Oxygen Sensor
  73. FC: Fan Control
  74. FCIL: Fuel Cap Indicator Lamp. Indicates that the fuel filler cap is not correctly installed.
  75. FEPS: Flash EEPROM Programming Signal. An 18-volt DC signal input from the scan tool used by the PCM to initiate programming.
  76. FFV: Flexible Fuel Vehicle
  77. FLI: Fuel Level Input. Provides information on the amount of liquid fuel in the fuel tank. Used by the EVAP monitor to calculate the fuel tank vapor volume. Displayed as a percentage.
  78. FMEM: Failure Mode Effects Management. Operating strategy that maintains limited vehicle function in the event of a PCM or EEC component failure.
  79. FP: Fuel Pump
  80. FPC: Fuel Pump Control
  81. FPDM: Fuel Pump Driver Module. A module that controls the electric fuel pump.
  82. FPM: Fuel Pump Monitor
  83. FRP: Fuel Rail Pressure
  84. FRPT: Fuel Rail Pressure Temperature
  85. FSS: Fan Speed Sensor
  86. FTP: Fuel Tank Pressure
  87. FWD: Front Wheel Drive
  88. GND: Ground
  89. GPM: 1. Grams per Mile. 2. Gallons per Minute.
  90. H: Hydrogen
  91. HC: 1. Hydrocarbon. A by-product of combustion and a component of auto exhaust emissions. 2. High Compression.
  92. HDR: High Data Rate
  93. HLOS: Hardware Limited Operating Strategy. A mode of operation where the PCM uses fixed values in response to internal PCM concerns in place of output commands.
  94. HO2S: Heated Oxygen Sensor. Provides information on rich or lean exhaust conditions to the PCM.
  95. Hz: Hertz. Cycles per second.
  96. IAC: Idle Air Control. Electrical control of throttle bypass air.
  97. IAT: Intake Air Temperature
  98. IAT2: Intake Air Temperature 2. Used on supercharged vehicles.
  99. IDM: Ignition Diagnostic Monitor
  100. IFS: Inertia Fuel Shut-Off
  101. I/M: Inspection/Maintenance
  102. IMRC: Intake Manifold Runner Control. Controls or modifies airflow in the intake air system.
  103. IMRCM: Intake Manifold Runner Control Monitor. Monitors the IMRC circuits for concerns.
  104. IMTV: Intake Manifold Tuning Valve. Controls airflow through runners in a split intake manifold.
  105. INJ: Injector
  106. IPC: Independent Plausibility Checker
  107. IPS: Intake Phase Shifting
  108. ISO: International Standards Organization
  109. KAM: Keep Alive Memory. A portion of the memory within the PCM that must have power even when the vehicle is not operating.
  110. KAPWR: Keep Alive Power. A dedicated and unswitched power circuit that maintains KAM.
  111. KOEO Self-Test: Key On Engine Off self-test. A test of the EEC system conducted by the PCM with power applied and the engine at rest.
  112. KOER Self-Test: Key On Engine Running self-test. A test of the EEC system conducted by the PCM with the engine running and the vehicle at rest.
  113. Km/h: Kilometers per Hour
  114. kPa: Kilopascals. Unit of pressure. 3.386 kPa equals 1 (in-Hg).
  115. KS: Knock Sensor
  116. L: Liters. The unit of volume in the metric measuring system. One liter equals 1.06 quarts.
  117. LDR: Low Data Rate
  118. LONGFT: Long-Term Fuel Trim. Fuel flow adjustment determined by the PCM.
  119. LOS: Limited Operating Strategy
  120. MAF: Mass Air Flow
  121. MAP: Manifold Absolute Pressure. The internal pressure of the intake manifold.
  122. MFF: Misfire Freeze Frame
  123. MIL: Malfunction Indicator Lamp. An indicator lamp alerting the driver of an emission related concern.
  124. MRFS: Mechanical Returnless Fuel System
  125. MSOF: Manual Shift-on-the-Fly
  126. N: Nitrogen
  127. NMOG: Non-Methane Organic Gases
  128. NOX : Oxides of Nitrogen. Gasses formed at high combustion temperatures.
  129. OASIS: On-line Automotive Service Information System
  130. OHC: Overhead Cam. An engine configuration that uses a single camshaft positioned above the valves.
  131. OL: Open Loop. An operating condition based on instructions not modified by PCM feedback.
  132. OSC: Output State Control
  133. OSR: On-Board System Readiness
  134. OTM: Output Test Mode
  135. PATS: Passive Anti-Theft System
  136. PCM: Powertrain Control Module
  137. PCM-VSO: Powertrain Control Module - Vehicle Speed Output
  138. PCV: Positive Crankcase Ventilation
  139. PCVTE: Positive Crankcase Ventilation Thermal Extension
  140. Pd: Palladium
  141. PDJB: Power Distribution Junction Box
  142. PID: Parameter Identification. Identifies an address in the PCM memory which contains operating information.
  143. PIP: Profile Ignition Pickup. Provides crankshaft position information for ignition synchronization.
  144. PPM: Parts per Million. A measure used in emission analysis.
  145. PS: Pressure Switch
  146. PSP: Power Steering Pressure. Indicates the pressure in the power steering system.
  147. PSPT: Power Steering Pressure Transducer
  148. Pt: Platinum
  149. PTO: Power Take-Off
  150. PTS: Professional Technician Society
  151. PWM: Pulse Width Modulation. Controls the intensity of an output by varying the signal duty cycle.
  152. PWR GND: Power Ground. The main ground circuit in the EEC system.
  153. RAM: Random Access Memory. Memory into which information can be written as well as read.
  154. RFI: Radio Frequency Interference
  155. Rh: Rhodium
  156. ROM: Read-Only Memory. Computer memory that can be accessed and used, but not altered.
  157. RPM: Revolutions Per Minute
  158. RWD: Rear Wheel Drive
  159. SAE: Society of Automotive Engineers
  160. SCB: Supercharger Bypass
  161. SFI: Sequential Multiport Fuel Injection. A multiport fuel delivery system in which each injector is individually energized and timed relative to its cylinder intake event.
  162. SHRTFT: Short-Term Fuel Trim. Fuel flow adjustment in response to the HO2S sensor(s) input during closed-loop operation.
  163. SIG RTN: Signal Return. A dedicated sensor ground circuit that is common to 2 or more sensors.
  164. SJB: Smart Junction Box
  165. SMR: Starter Motor Request
  166. TAC: Throttle Actuator Control
  167. TACM: Throttle Actuator Control Motor
  168. TCM: Transmission Control Module
  169. TCSS: Transfer Case Speed Sensor
  170. TDC: Top Dead Center
  171. TP: Throttle Position
  172. TPPC: Throttle Plate Position Controller
  173. TSB: Technical Service Bulletin. Notifies technician of any known vehicle concerns, procedures, or general repair information.
  174. TWC: Three-Way Catalytic
  175. VBPWR: Vehicle Buffered Power. A PCM-supplied power source that supplies regulated voltage.
  176. VCM: Vehicle Communication Module
  177. VCT: Variable Camshaft Timing
  178. VECI: Vehicle Emission Control Information
  179. VID: Vehicle Identification
  180. VIN: Vehicle Identification Number. A unique identification number given to every vehicle produced. Includes information about the year, model, engine, and plant origin of the vehicle.
  181. VMV: Vapor Management Valve
  182. VPWR: Vehicle Power. A switched circuit that provides power to the EEC system. Compare to battery voltage (B+).
  183. VR: Variable Reluctance
  184. VREF: Reference Voltage. A dedicated circuit that provides an approximately 5.0 volt signal used as a reference by certain sensors.
  185. WAC: Wide Open Throttle Air Conditioning Cutoff
  186. WOT: Wide Open Throttle. A condition of maximum airflow through the throttle body.
  187. Transmissions:
    NOTE: The automatic transmission naming convention is as follows:
    • The first character, a number, is the number of forward gears.
    • The second character, either the letter F or R, represents front (transaxle) or rear (transmission) wheel drive.
    • The next set of characters, a grouping of numbers, represents the design torque capacity of the transmission/transaxle.
    • The last character, if used, is one of the following:
      • E for electronic shift
      • N for non-synchronous shift
      • S for synchronous shift
      • W for wide ratio

      • As an example, for the 4F27E transaxle, the number of forward gears is 4, the character F indicates front transaxle, 27 represents 270 ft-lbs of torque capacity and the character E represents an electronic shift.

  188. A/T: Automatic Transmission
  189. CCS: Coast Clutch Solenoid
  190. EPC: Electronic Pressure Control
  191. ESS: Electronic Shift Scheduling
  192. ISS: Intermediate/Input Shaft Speed Sensor
  193. M/T: Manual Transmission/Transaxle
  194. OCS: Overdrive Cancel Switch
  195. OSS: Output Shaft Speed. Indicates the rotational speed of the transmission output shaft.
  196. PNP: Park/Neutral Position switch.
  197. REVERSE or REV: Transmission Reverse Switch Input
  198. SSA/SSB/SSC/SSD/SSE: Shift solenoids. Devices in an automatic transmission that control the shifting by varying fluid flow when commanded by the PCM.
  199. SS1/SS2/SS3: Shift solenoids. Devices in an automatic transmission that control the shifting by varying fluid flow when commanded by the PCM.
  200. TCC: Torque Converter Clutch. When energized, causes a mechanical engagement and disengagement of the torque converter clutch.
  201. TCIL: Transmission Control Indicator Lamp. Indicates that the TCS has been activated.
  202. TCS: Transmission Control Switch. Modifies the operation of electronically controlled transmissions.
  203. TFT: Transmission Fluid Temperature. Indicates the temperature of transmission fluid.
  204. TR: Transmission Range. The range in which the transmission is operating.
  205. TSS: Turbine Shaft Speed. Indicates the rotational speed of the transmission turbine shaft.
  206. VSS: Vehicle Speed Sensor. A magnetic pickup device that generates an AC signal that is proportional to the vehicle speed.
  207. VSOUT: Vehicle Speed Output. A pulse width modulated vehicle speed signal.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.