ENGINE MANAGEMENT SYSTEM 9. ABBREVIATIONS A. EMS Engine Management System ECU Electronic Control Unit OBD On Board Diagnosis DTC Diagnostic Trouble Code CKNL Check Lamp / MIL / Service Indicator T-MAP Temperature and Manifold Air Pressure HO2S1 Oxygen Sensor (Lambda Sensor) ADCs devices Analog To Digital Convertor devices I/O drivers Input Output drivers DG DG abbreviation is used for Crank Shaft Position Sensor RPM Revolution Per Minute LED Light Emitting Diode COM Computer Serial Port (RS-232) OCV Oil Control Valve (Solenoid Valve) ENGINE 1.2L BSVI PHASE-2 150
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