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Description NLEC1553 SYSTEM DESCRIPTION NLEC1553S01 Sensor Input Signal to ECM ECM func- tion Actuator Crankshaft position sensor Engine speed EGR vol- EGR volume control valve Mass air flow sensor Amount of intake air Engine coolant temperature sensor Engine coolant temperature Ignition switch Start signal Throttle position sensor Throttle position Vehicle speed sensor Vehicle speed Battery Battery voltage Air conditioner switch Air conditioner operation Power steering oil pressure switch Power steering load signal Electrical load Electrical load signal PNP switch Park/Neutral position signal TCM (Transmission Control Module) Gear position, shifting signal This system controls flow rate of EGR led from exhaust manifold + Low engine coolant temperature + Engine starting + High-speed engine operation + Extremely light load engine operation + Engine idling + Excessively high engine coolant temperature + Wide open throttle + Mass air flow sensor malfunction + Low battery voltage SEF551W DTC P0403 EGR VOLUME CONTROL VALVE (CIRCUIT) (WHERE FITTED) SR20DE Description EC-841 |