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DIAGNOSIS SYSTEM (ECM) EC-63 < SYSTEM DESCRIPTION > [HR16DE] C D E F G H I J K L M A EC N P O READY STATE* YES/NO • Displays the clutch 1 disengagement/engage- ment status sent from HPCM. - YES: READY state ENG SPEED rpm Indicates the engine speed computed from the sig- • Accuracy becomes poor if engine speed drops below the idle rpm. • If the signal is interrupted while the engine is running, an abnormal value MAS A/F SE-B1 V The signal voltage of the mass air flow sensor is dis- • When the engine is stopped, a certain value is indicated. • When engine is running, specification range is indicated in “SPEC”. B/FUEL SCHDL ms “Base fuel schedule” indicates the fuel injection When engine is running, specification A/F ALPHA-B1 % The mean value of the air-fuel ratio feedback cor- • When the engine is stopped, a certain value is indicated. • When engine is running, specification range is indicated in “SPEC”. • This data also includes the data for the air-fuel ratio learning control. COOLAN TEMP/S °C or °F The engine coolant temperature (determined by the When the engine coolant temperature A/F SEN1 (B1) V The A/F signal computed from the input signal of HO2S2 (B1) V The signal voltage of the heated oxygen sensor 2 is HO2S2 MNTR(B1) RICH/LEAN • Display of heated oxygen sensor 2 signal. way catalyst is relatively small. - LEAN: means the amount of oxygen after three way catalyst is relatively large. When the engine is stopped, a certain VHCL SPEED SE km/h or mph The vehicle speed computed from the vehicle BATTERY VOLT V The power supply voltage of ECM is displayed. ACCEL SEN 1 V The accelerator pedal position sensor signal volt- ACCEL SEN 2 signal is converted by ACCEL SEN 2 TP SEN 1-B1 V The throttle position sensor signal voltage is dis- TP SEN 2-B1 signal is converted by TP SEN 2-B1 FUEL T/TMP SE °C or °F The fuel temperature (determined by the signal volt- EVAP SYS PRES V The signal voltage of EVAP control system pres- FUEL LEVEL SE V The signal voltage of the fuel level sensor is dis- START SIGNAL ON/OFF Indicates start signal status [ON/OFF] computed by After starting the engine, [OFF] is dis- Monitored item Unit Description Remarks |