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Data Monitor Mode

WARNING: This page is about a different car, the 2013 Nissan Armada. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: The following table includes information (items) inapplicable to this vehicle. For information (items) applicable to this vehicle, refer to CONSULT display items.

Monitored Item

For reference values of the following items, refer to "CONSULT REFERENCE VALUE IN DATA MONITOR MODE ".

x: Applicable
Monitored item [Unit] ECM INPUT SIGNALS MAIN SIGNALS Description Remarks
ENG SPEED [RPM] x x
  • Indicates the engine speed computed from the signal of the crankshaft position sensor (POS) and camshaft position sensor (PHASE).
  • Accuracy becomes poor if engine speed drops below the idle RPM.
  • If the signal is interrupted while the engine is running, an abnormal value may be indicated.
MAS A/F SE-B1 [V] x x
  • The signal voltage of the mass air flow sensor is displayed.
  • When the engine is stopped, a certain value is indicated.
  • When engine is running specification range is indicated in "SPEC".
B/FUEL SCHDL [ms] x x
  • Base fuel schedule indicates the fuel injection pulse width programmed into ECM, prior to any learned on board correction.
  • When engine is running specification range is indicated in "SPEC".
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.
  • When engine is running specification range is indicated in "SPEC".
  • This data also includes the data for the air-fuel ratio learning control.
A/F ALPHA-B2 [%]    
COOLANT TEMP/S [°C] or [°F] x x
  • 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.
A/F SEN1 (B1) [V] x x
  • The A/F signal computed from the input signal of the A/F sensor 1 is displayed.
  
HO2S2 (B1) [V] x x
  • The signal voltage of the heated oxygen sensor 2 is displayed.
  
HO2S2 (B2) [V] x x
HO2S2 MNTR(B1) [RICH/LEAN]   x
  • Display of heated oxygen sensor 2 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.
HO2S2 MNTR(B2) [RICH/LEAN]   x
VHCL SPEED SE [km/h] or [mph] x x
  • The vehicle speed computed from the vehicle speed signal sent from combination meter is displayed.
  
BATTERY VOLT [V]    
  • The power supply voltage of ECM is displayed.
  
ACCEL SEN 1 [V]    
  • The accelerator pedal position sensor signal voltage is displayed.
  • ACCEL SEN 2 signal is converted by ECM internally. Thus, it differs from ECM terminal voltage signal.
ACCEL SEN 2 [V]    
TP SEN 1-B1 [V] x x
  • The throttle position sensor signal voltage is displayed.
  • TP SEN 2-B1 [V] signal is converted by ECM internally. Thus, it differs from ECM terminal voltage signal.
TP SEN 2-B1 [V] x x
FUEL T/TMP SE [°C] or [°F]    
  • The fuel temperature (determined by the signal voltage of the fuel tank temperature sensor) is displayed.
  
EVAP SYS PRES [V]    
  • The signal voltage of EVAP control system pressure sensor is displayed.
  
FUEL LEVEL SE [V] x  
  • The signal voltage of the fuel level sensor is displayed.
  
START SIGNAL [ON/OFF]    
  • Indicates start signal status [ON/OFF] computed by the ECM according to the signals of engine speed and battery voltage.
  • After starting the engine, [OFF] is displayed regardless of the starter signal.
CLSD THL POS [ON/OFF] x x
  • Indicates idle position [ON/OFF] computed by ECM according to the accelerator pedal position sensor signal.
  
AIR COND SIG [ON/OFF] x x
  • Indicates [ON/OFF] condition of the air conditioner switch as determined by the air conditioner signal.
  
PW/ST SIGNAL [ON/OFF] x x
  • [ON/OFF] condition of the power steering system (determined by the signal voltage of the power steering pressure sensor signal) is indicated.
  
LOAD SIGNAL [ON/OFF] x x
  • Indicates [ON/OFF] condition from the electrical load signal.

    ON: Rear window defogger switch is ON and/or lighting switch is in 2nd position.

    OFF: Both rear window defogger switch and lighting switch are OFF.

  
IGNITION SW [ON/OFF] x x
  • Indicates [ON/OFF] condition from ignition switch signal.
  
HEATER FAN SW [ON/OFF] x  
  • Indicates [ON/OFF] condition from heater fan switch signal.
  
BRAKE SW [ON/OFF]    
  • Indicates [ON/OFF] condition from the stop lamp switch signal.
  
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.
INJ PULSE-B2 [msec]    
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 air flow divided by peak air flow.
  
MASS AIRFLOW [g/s]    
  • Indicates the mass air flow computed by ECM according to the signal voltage of the mass air flow sensor.
  
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.
  
INT/V TIM(B1) [°CA]    
  • Indicates [°CA] of intake camshaft advanced angle.
  
INT/V TIM(B2) [°CA]    
INT/V SOL(B1) [%]    
  • The control value of the intake valve timing control solenoid valve (determined by ECM according to the input signals) is indicated.
  • The advance angle becomes larger as the value increases.
  
INT/V SOL(B2) [%]    
AIR COND RLY [ON/OFF]    
  • The air conditioner relay control condition (determined by ECM according to the input signals) is indicated.
  
FUEL PUMP RLY [ON/OFF]    
  • Indicates the fuel pump relay control condition determined by ECM according to the input signals.
  
FPCM [HI/LOW](1)    
  • The control condition of the fuel pump control module (FPCM) (determined by the ECM according to the input signals) is indicated.
  
VENT CONT/V [ON/OFF]    
  • The control condition of the EVAP canister vent control valve (determined by ECM according to the input signals) is indicated.

    ON: Closed

    OFF: Open

  
THRTL RELAY [ON/OFF]    
  • Indicates the throttle control motor relay control condition determined by the ECM according to the input signals.
  
A/F S1 HTR(B2) [%]    
  • A/F sensor 1 heater control value computed by ECM according to the input signals.
  • The current flow to the heater becomes larger as the value increases.
  
COOLING FAN [HI/OFF]    
  • The control condition of the cooling fan (determined by ECM according to the input signals) is indicated.

    HI: High speed operation

    OFF: Stop

  
HO2S2 HTR (B1) [ON/OFF]    
  • Indicates [ON/OFF] condition of heated oxygen sensor 2 heater determined by ECM according to the input signals.
  
HO2S2 HTR (B2) [ON/OFF]    
ALT DUTY SIG [ON/OFF]    
  • The control condition of the power generation voltage variable control (determined by ECM according to the input signals) is indicated.

    ON: Power generation voltage variable control is active.

    OFF: Power generation voltage variable control is inactive.

  
I/P PULLY SPD [RPM]    
  • Indicates the engine speed computed from the Input speed sensor signal.
  
VEHICLE SPEED [km/h] or [mph]    
  • Indicates the vehicle speed computed from the revolution sensor signal.
  
IDL A/V LEARN [YET/CMPLT]    
  • 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.

  
TRVL AFTER MIL [km] or [mile]    
  • Distance traveled while MIL is activated.
  
A/F S1 HTR(B1) [%]    
  • A/F sensor 1 heater control value computed by ECM according to the input signals.
  • The current flow to the heater becomes larger as the value increases.
  
VHCL SPEED SE [km/h] or [mph]    
  • The vehicle speed computed from the vehicle speed signal sent from combination meter is displayed.
  
SET VHCL SPD [km/h] or [mph]    
  • The preset vehicle speed is displayed.
  
MAIN SW [ON/OFF]    
  • Indicates [ON/OFF] condition from MAIN switch signal.
  
CANCEL SW [ON/OFF]    
  • Indicates [ON/OFF] condition from CANCEL switch signal.
  
RESUME/ACC SW [ON/OFF]    
  • Indicates [ON/OFF] condition from RESUME/ACCELERATE switch signal.
  
SET SW [ON/OFF]    
  • Indicates [ON/OFF] condition from SET/COAST switch signal.
  
BRAKE SW1 [ON/OFF]    
  • Indicates [ON/OFF] condition from ASCD brake switch signal.
  
BRAKE SW2 [ON/OFF]    
  • Indicates [ON/OFF] condition of stop lamp switch signal.
  
VHCL SPD CUT [NON/CUT]    
  • Indicates the vehicle cruise condition.

    NON: Vehicle speed is maintained at the ASCD set speed.

    CUT: Vehicle speed increased to excessively high compared with the ASCD set speed, and ASCD operation is cut off.

  
LO SPEED CUT [NON/CUT]    
  • Indicates the vehicle cruise condition.

    NON: Vehicle speed is maintained at the ASCD set speed.

    CUT: Vehicle speed decreased to excessively low compared with the ASCD set speed, and ASCD operation is cut off.

  
AT OD MONITOR [ON/OFF]    
  • Indicates [ON/OFF] condition of A/T O/D according to the input signal from the TCM.
  
AT OD CANCEL [ON/OFF]    
  • Indicates [ON/OFF] condition of A/T O/D cancel signal sent from the TCM.
  
CRUISE LAMP [ON/OFF]    
  • Indicates [ON/OFF] condition of CRUISE lamp determined by the ECM according to the input signals.
  
SET LAMP [ON/OFF]    
  • Indicates [ON/OFF] condition of SET lamp determined by the ECM according to the input signals.
  
ETHANOL M/R [%](1)    
  • Ethanol mixture ratio presumed by the ECM according to the input signals is displayed.
  
ALT DUTY [%]    
  • Indicates the duty ratio of the power generation command value. The ratio is calculated by ECM based on the battery current sensor signal.
  
BAT CUR SEN [mV]    
  • The signal voltage of battery current sensor is displayed.
  
A/F ADJ-B1    
  • Indicates the correction factor stored in ECM. The factor is calculated from the difference between the target air/fuel ratio stored in ECM and the air-fuel ratio calculated from air fuel ratio (A/F) sensor 1 signal.
  
A/F ADJ-B2    
P/N POSI SW [ON/OFF] x x
  • Indicates [ON/OFF] condition from the park/neutral position (PNP) switch signal.
  
INT/A TEMP SE [°C] or [°F] x x
  • The intake air temperature (determined by the signal voltage of the intake air temperature sensor) is indicated.
  
AC PRESS SEN [V]    
  • The signal voltage from the refrigerant pressure sensor is displayed.
  
A/F SEN1 (B2) [V] x x
  • The A/F signal computed from the input signal of the A/F sensor 1 is displayed.
  
VTC DTY EX B2 [%]     -  
FPCM DR VOLT [V](1)    
  • The voltage between fuel pump and FPCM is displayed.
  
THRTL STK CNT B1(2)     -  
HO2 S2 DIAG2 (B1) [INCMP/CMPLT]    
  • Indicates DTC P0139 self-diagnosis (slow response) condition.

    INCMP: Self-diagnosis is incomplete.

    CMPLT: Self-diagnosis is complete.

  
HO2 S2 DIAG2 (B2) [INCMP/CMPLT]    
  • Indicates DTC P0159 self-diagnosis (slow response) condition.

    INCMP: Self-diagnosis is incomplete.

    CMPLT: Self-diagnosis is complete.

  
A/F SEN1 DIAG2 (B1)(2)    
  • Indicates DTC P014C or P014D self-diagnosis condition.

    INCMP: Self-diagnosis is incomplete.

    CMPLT: Self-diagnosis is complete.

  
A/F SEN1 DIAG2 (B2)(2)    
  • Indicates DTC P014E or P014F self-diagnosis condition.

    INCMP: Self-diagnosis is incomplete.

    CMPLT: Self-diagnosis is complete.

  
EVAP LEAK DIAG    
  • Indicates the condition of EVAP leak diagnosis.

    YET: EVAP leak diagnosis has not been performed yet.

    CMPLT: EVAP leak diagnosis has been performed successfully.

  
EVAP DIAG READY    
  • Indicates the ready condition of EVAP leak diagnosis.

    ON: Diagnosis has been ready condition.

    OFF: Diagnosis has not been ready condition.

  
(1) For Flexible Fuel Vehicle
(2) The item is indicated, but not used.
NOTE: Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
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