EXPLANATION OF ABBREVIATIONS/TERMS

TM9-2320-360-20-3 Section 2 BASIC KNOWLEDGE REQUIRED (Cont’d) DDR - Diagnostic Data Reader: The hand held tool used for troubleshooting the DDEC system. MPSI PRO-LINK 9000. ECM - Engine Control Module: The controller of the DDEC Ill system. It reads the engine and vehicle inputs, sensors - and switches, calculates injector firing time and duration, and fires injectors at appropriate times. EERPOM - Electrically Erasable Programmable Read Only Memory PWM EFPA EUI FTS GND INJ LSG N/A OPS OTS PW - Pulsewidth Modulated: Modulated signal provided by the DDEC system. - Electronic Foot Pedal Assembly: Contains the Throttle Position Sensor. - Electronic Unit Injector - Fuel Temperature Sensor: Monitors fuel temperature. - Ground - Injector (fuel) - Limiting Speed Governor - Not Applicable - Oil Pressure Sensor: Monitors oil pressure. - Oil Temperature Sensor: Monitors oil temperature. - Pulsewidth H-6