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TROUBLE DIAGNOSIS EC-121 < SERVICE INFORMATION > [VQ35DE] C D E F G H I J K L M A EC N P O *: The items are the same as those of 1st trip freeze frame data. DATA MONITOR MODE Monitored Item × : Applicable INT/A TEMP SE ° C] or [ ° F] • The intake air temperature at the moment a malfunction is detected is displayed. INT MANI PRES [kPa] • Always a certain value is displayed. FTFMCH1 Freeze frame data item* Description Monitored item Unit Description Remarks ENG SPEED rpm • Indicates the engine speed computed from the sig- nal of the crankshaft position sensor (POS) and • Accuracy becomes poor if engine speed drops below the idle rpm. • If the signal is interrupted while the en- gine is running, an abnormal value may MAS A/F SE-B1 × • The signal voltage of the mass air flow sensor is displayed. • When the engine is stopped, a certain value is indicated. B/FUEL SCHDL × • Base fuel schedule indicates the fuel injection pulse width programmed into ECM, prior to any A/F ALPHA-B1 % • The mean value of the air-fuel ratio feedback cor- rection factor per cycle is indicated. • When the engine is stopped, a certain value is indicated. • This data also includes the data for the air-fuel ratio learning control. A/F ALPHA-B2 × COOLAN TEMP/S ° C or ° • The engine coolant temperature (determined by the signal voltage of the engine coolant tempera- • When the engine coolant temperature sensor is open or short-circuited, ECM A/F SEN1 (B1) × • The A/F signal computed from the input signal of the Air fuel ratio (A/F) sensor 1 is displayed. A/F SEN1 (B2) × HO2S2 (B1) × • The signal voltage of the heated oxygen sensor 2 is displayed. HO2S2 (B2) × HO2S2 MNTR(B1) RICH/ LEAN • Display of heated oxygen sensor 2 signal: RICH: means the amount of oxygen after three way • When the engine is stopped, a certain value is indicated. HO2S2 MNTR(B2) RICH/ LEAN VHCL SPEED SE km/h or mph • The vehicle speed computed from the vehicle speed signal sent from combination meter is dis- BATTERY VOLT V • The power supply voltage of ECM is displayed. ACCEL SEN 1 × • The accelerator pedal position sensor signal volt- age is displayed. • ACCEL SEN 2 signal is converted by ECM internally. Thus, it differs from ECM ACCEL SEN 2 × TP SEN 1-B1 V • The throttle position sensor signal voltage is dis- played. • THRTL SEN 2 signal is converted by ECM internally. Thus, it differs from ECM TP SEN 2-B1 V FUEL T/TMP SE ° C or ° • The fuel temperature (determined by the signal voltage of the fuel tank temperature sensor) is dis- INT/A TEMP SE ° C or ° F • The intake air temperature (determined by the sig- nal voltage of the intake air temperature sensor) is |