|
|
Fuel Pump Control Module (FPCM) SYSTEM DESCRIPTION Camshaft position sensor E Engine speed ECM E FPCM Mass air flow sensor E Amount of intake air Engine coolant temperature E Engine coolant temperature Ignition switch E Start signal This system controls the fuel pump operation. The Conditions Amount of fuel flow Supplied voltage I Engine cranking I Within 16 seconds after I Engine is running under high Battery voltage Except the above low Approximately 7V SEF387X COMPONENT DESCRIPTION The FPCM adjusts the voltage supplied to the fuel pump to control CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE Specification data are reference values. MONITOR ITEM CONDITION SPECIFICATION FPCM I Within 16 seconds after starting the engine, when engine coolant temperature is HIGH , LOW FPCM D/R VOLT I Within 16 seconds after starting the engine, when engine coolant temperature is Approx. 5.0V , Approx. 0.4V GI MA EM LC FE AT PD FA RA BR ST RS BT HA EL IDX TROUBLE DIAGNOSIS FOR DTC P1220 EC-393 |