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Home >> Infiniti >> 2002 >> G20 Automatic, RE4F03W >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics - G20 >> Scan Tool Usage >> Consult-II >> Data Monitor Mode
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Data Monitor Mode

For DATA MONITOR mode descriptions, seeDATA MONITOR MODE DESCRIPTIONS  table.

DATA MONITOR MODE DESCRIPTIONS

Monitored Item Description
ENG SPEED [rpm] Indicates the engine speed computed from the REF signal (180° signal) of the camshaft position sensor.
MAS A/F SE-B1 [V] The signal voltage of the mass air flow sensor is displayed. When the engine is stopped, a certain value is indicated.
B/FUEL SCHDL [msec] "Base fuel schedule" indicates the fuel injection pulse width programmed into ECM, prior to any learned on board correction.
A/F ALPHA-B1 [%] The mean value of the air-fuel ratio feedback correction 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.
COOLAN TEMP/S [°C] or [°F] The engine coolant temperature (determined by the signal voltage of the engine coolant temperature sensor) is displayed. When the engine coolant temperature sensor is open or short-circuited, ECM enters fail-safe mode. The engine coolant temperature determined by the ECM is displayed.
H02S1 (B1) [V] The signal voltage of the heated oxygen sensor 1 (front) is displayed.
H02S2 (B1) [V] The signal voltage of the heated oxygen sensor 2 (rear) is displayed.
H02S1 MNTR (B1) [RICH/LEAN] Display of heated oxygen sensor 1 (front) signal during air-fuel ratio feedback control: RICH - means the mixture became "rich", and control is being affected toward a leaner mixture. LEAN - means the mixture became "lean", and control is being affected toward a rich mixture. After turning ON the ignition switch, RICH is displayed until air-fuel mixture ratio feedback control begins. When the air-fuel ratio feedback is clamped, the value just before the clamping is displayed continuously.
H02S2 MNTR (B1) [RICH/LEAN] Display of heated oxygen sensor 2 (rear) signal: RICH - means the amount of oxygen after three 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 value is indicated.
VHCL SPEED SE [km/h] or [mph] The vehicle speed computed from the vehicle speed sensor signal is displayed.
BATTERY VOLT [V] The power supply voltage of ECM is displayed.
THRTL POS SEN [V] The throttle position sensor signal volt- age is displayed.
FUEL T/TMP SE [°C] or [°F] The fuel temperature judged from the fuel tank temperature sensor signal voltage is displayed.
INT/A TEMP SE [°C] or [°F] The intake air temperature determined by the signal voltage of the intake air temperature sensor is indicated.
EGR TEMP SEN [V] The signal voltage of the EGR tem- perature sensor is displayed.
EVAP SYS PRES [V] The signal voltage of EVAP control system pressure sensor is displayed.
ABSOL PRES/SE [V] The signal voltage of the absolute pressure sensor is displayed.
FUEL LEVEL SE [V] The signal voltage of the fuel level sensor is displayed.
START SIGNAL [ON/OFF] Indicates [ON/OFF] condition from the starter signal. After starting the engine, [OFF] is displayed regardless of the starter signal.
CLSD THL POS [ON/OFF] Indicates idle position [ON/OFF] computed by ECM according to the throttle position sensor signal.
CLSD THL/P SW [ON/OFF] Indicates mechanical contact [ON/OFF] condition of the closed throttle position switch.
AIR COND SIG [ON/OFF] Indicates [ON/OFF] condition of the air conditioner switch as determined by the air conditioner signal.
P/N POSI SW [ON/OFF] Indicates [ON/OFF] condition from the park/neutral position (PNP) switch signal.
PW/ST SIGNAL [ON/OFF] [ON/OFF] condition of the power steering oil pressure switch determined by the power steering oil pressure signal is indicated.
LOAD SIGNAL [ON/OFF] Indicates [ON/OFF] condition from the electrical load signal and/or lighting switch. ON - rear defogger is operating and/or lighting switch is on. OFF - rear defogger is not operating and lighting switch is not on.
IGNITION SW [ON/OFF] Indicates [ON/OFF] condition from ignition switch.
INJ PULSE-B1 [msec] Indicates the actual fuel injection pulse width compensated by ECM according to the input signals. When the engine is stopped, a certain computed value is indicated.
IGN TIMING [BTDC] Indicates the ignition timing computed by ECM according to the input signals. When the engine is stopped, a certain value is indicated.
CAL/LD VALUE [%] "Calculated load value" indicates the value of the current airflow divided by peak airflow.
ABSOL TH-P/S [%] "Absolute throttle position sensor" indicates the throttle valve opening angle computed by ECM according to the signal voltage of the throttle position sensor.
MASS AIRFLOW [g m/s] Indicates the mass airflow computed by ECM according to the signal voltage of the mass airflow sensor.
IACV-AAC/V [step] Indicates the IACV-AAC valve control value computed by ECM according to the input signals.
PURG VOL C/V [%] Indicates the EVAP canister purge volume control solenoid valve control value computed by the ECM according to the input signals. The opening becomes larger as the value increases
EGR VOL CON/V [step] Indicates the EGR volume control value computed by the ECM according to the input signals. The opening becomes larger as the value increases.
AIR COND RLY [ON/OFF] The air conditioner relay control condition (determined by ECM according to the input signal) is indicated.
FUEL PUMP RLY [ON/OFF] Indicates the fuel pump relay control condition determined by ECM according to the input signals.
VC/V BYPASS/V [ON/OFF] The control condition of the vacuum cut valve bypass valve (determined by ECM according to the input signal) is indicated. ON - Open; OFF - Closed
VENT CONT/V [ON/OFF] The control condition of the EVAP canister vent control valve (determined by ECM according to the input signal) is indicated. ON - Closed; OFF - Open
COOLING FAN [HIGH/LOW/OFF] Indicates the control condition of the cooling fan (determined by ECM ccording to the input signal). HIGH - High speed operation; LOW - Low speed operation; OFF - Stop
H02S1 HTR (B1) [ON/OFF] Indicates [ON/OFF] condition of heated oxygen sensor 1 heater (front) determined by ECM according to the input signals.
H02S2 HTR (B1) [ON/OFF] Indicates [ON/OFF] condition of heated oxygen sensor 2 heater (rear) determined by ECM according to the input signals.
IDL A/V LEAN Display the condition of idle air volume learning. YET - Idle air volume learning has not been performed yet. CMPLT - Idle air volume learning has already been performed successfully. INCMP - Idle air volume learning has not been performed successfully.
TRVL AFTER MIL [km] or [Mile] Distance traveled while MIL is activated