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Monitored Item

WARNING: This page is about a different car, the 2017 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
Monitored item Unit Monitor Item Selection Description Remarks
ECU INPUT SIGNALS MAIN SIGNALS
COOLANT 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.
VHCL SPEED SE km/h or mph * * 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.  
INT/A TEMP SE °C or °F * * The intake air temperature (determined by the signal voltage of the intake air temperature sensor) is indicated.  
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.
  
FUEL T/TMP SE °C or °F     The fuel temperature (determined by the signal voltage of the fuel tank temperature sensor) is displayed.  
FUEL LEVEL SE V *   The signal voltage of the fuel level sensor is displayed.  
EVAP SYS PRES V     The signal voltage of EVAP control system pressure sensor is displayed.  
CAL/LD VALUE %     "Calculated load value" indicates the value of the current air flow divided by peak air flow.  
HO2S2 (B1) V * * The signal voltage of the heated oxygen sensor 2 is displayed.  
HO2S2 (B2)
ENG OIL TEMP °C or °F     The engine oil temperature (determined by the signal voltage of the engine oil temperature sensor) is displayed.  
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.
  • Specification value is indicated on monitor screen under the following conditions.
    • Reference: Select
    • Display type: Line graph
A/F ALPHA-B2
A/F S1 HTR (B1) %    
  • Air fuel ratio (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.
  
A/F S1 HTR (B2)
EXH/V TIM B1 °CA     Indicates [°CA] of exhaust camshaft retard angle.  
EXH/V TIM B2    
Ignition timing deg * * Indicates the ignition timing computed by ECM according to the input signals.
NOTE:

Indicates degree from BTDC (Before Top Dead Center) of compression stroke.
  • When the engine is stopped, a certain value is indicated.
Fuel injection timing deg     Indicates the fuel injection timing computed by ECM according to the input signals.
NOTE:

Indicates degree from BTDC (Before Top Dead Center) of intake stroke.

  
FAN DUTY %     Indicates a command value for cooling fan. The value is calculated by ECM based on input signals.  
AC EVA TEMP °C or °F     Indicates A/C evaporator temperature sent from "unified meter and A/C amp".  
AC EVA TARGET °C or °F     Indicates target A/C evaporator temperature sent from "unified meter and A/C amp".  
FUEL PUMP DUTY %     The control condition of the fuel pump control module (FPCM) (determined by ECM according to the input signals) is indicated.  
THRTL STK CNT B1 -    
NOTE:

The item is indicated, but not used.

  
ENG SPEED RPM * * 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.
TRVL AFTER MIL km or mile     Distance traveled while MIL is activated.  
B/FUEL SCHDL ms * * "Base fuel schedule" indicates the fuel injection pulse width programmed into ECM, prior to any learned on board correction. Specification value is indicated on monitor screen under the following conditions.
  • Reference: Select
  • Display type: Line graph
MASS AIRFLOW g/s     Indicates the mass air flow computed by ECM according to the signal voltage of the mass air flow sensor.  
FUEL PRES SEN MPa     Indicates the fuel rail pressure computed by ECM according to the input signals.  
ACCEL SEN 1 V     The accelerator pedal position sensor signal voltage is displayed. ACCEL SEN 2 signal is converted by ECM internally. Thus, they differs from ECM terminal voltage signal.
ACCEL SEN 2    
TP SEN 1-B1 V * * The throttle position sensor signal voltage is displayed. TP SEN 2-B1 signal is converted by ECM internally. Thus, they differs from ECM terminal voltage signal.
TP SEN 2-B1
FUEL INJ B1 msec     ECM-calculated injection pulse width of the fuel injector on the Bank 1 side.  
FUEL INJ B2    
I/P PULLEY SPD RPM     Indicates the engine speed computed from the input speed sensor signal.  
VEHICLE SPEED km/h or mph     The vehicle speed computed from the vehicle speed signal sent from TCM is displayed.  
AC PRESS SEN V     The signal voltage from the refrigerant pressure sensor is displayed.  
A/F SEN1 (B1) V * * The A/F signal computed from the input signal of the air fuel ratio (A/F) sensor 1 is displayed.  
A/F SEN1 (B2)
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     The preset vehicle speed is displayed.  
VTC DTY EX B1 %     The control condition of the exhaust valve timing control solenoid valve (determined by ECM according to the input signals) is indicated.  
VTC DTY EX B2      
MILEAGE FOR EONV km     Mileage counter for EONV upper byte is displayed.  
A/F ADJ-B1 -     Indicates the correction of 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 A/F sensor 1 signal.  
A/F ADJ-B2    
INT/V TIM (B1) °CA     Indicates [°CA] of intake camshaft advance angle.  
INT/V TIM (B2)
H/P FUEL PUMP DEG deg     Displays ECM-calculated fuel discharge position of the high pressure fuel pump.  
FUEL PRES SEN V V     The signal voltage of FRP sensor is displayed.  
EOP SENSOR V     The signal voltage of EOP sensor is displayed.  
ECM TEMP 1 °C     The ECM temperature is indicated.  
ECM TEMP 2    
MASS AIR FLOW SENSOR (Hz) Hz     The signal frequency of the mass air flow sensor bank 1 is displayed.
  • Specification value is indicated on monitor screen under the following conditions.
    • Reference: Select
    • Display type: Line graph
A/F-S ATMSPHRC CRCT B2 -     Displays a determined value of atmospheric correction factor necessary for correcting an A/F sensor signal input to ECM. The signal used for the correction is an A/F sensor signal transmitted while driving under atmospheric pressure.  
A/F-S ATMSPHRC CRCT B1 -     Displays a determined value of atmospheric correction factor necessary for correcting an A/F sensor signal input to ECM. The signal used for the correction is an A/F sensor signal transmitted while driving under atmospheric pressure.  
A/F-S ATMSPHRC CRCT UP B2 count     Displays the number of updates of the A/F sensor atmospheric correction factor.  
A/F-S ATMSPHRC CRCT UP B1 count     Displays the number of updates of the A/F sensor atmospheric correction factor.  
LOAD SIGNAL On/Off * * 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.
  
AIR COND SIG On/Off * * Indicates [On/Off] condition of the air conditioner switch as determined by the air conditioner signal.  
PW/ST SIGNAL On/Off * * [On/Off] condition of the power steering system (determined by the signal voltage of the power steering pressure sensor signal) is indicated.  
P/N POSI SW On/Off * * Indicates [On/Off] condition from the park/neutral position (PNP) signal.  
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 * * Indicates idle position [On/Off] computed by ECM according to the accelerator pedal position sensor signal.  
HO2S2 MNTR (B1) RICH/LEAN   * 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)   *
IGNITION SW On/Off * * Indicates [On/Off] condition from ignition switch signal.  
HEATER FAN SW On/Off *   Indicates [On/Off] condition from the heater fan switch signal.  
IDL A/V LEARN YET/CMPLT     Displays 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.
  
BRAKE SW On/Off     Indicates [On/Off] condition from the stop lamp switch signal.  
COMBUSTION -     These items are displayed but are not applicable to this model.  
VIAS S/V-1 On/Off   * The control condition of the VIAS control solenoid valve 1 (determined by ECM according to the input sig-nals) is indicated.
  • On: VIAS control solenoid valve 1 is operating
  • Off: VIAS control solenoid valve 1 is not operating
  
AIR COND RLY On/Off     The air conditioner relay control condition (determined by ECM according to the input signals) is indicated.  
ENGINE MOUNT IDLE/TRVL     The control condition of the electronic controlled engine mount (determined by ECM according to the input signals) is indicated.
  • IDLE: Engine speed is below 950 RPM
  • TRVL: Engine speed is above 950 RPM
  
FUEL PUMP RLY On/Off     Indicates the fuel pump relay control condition determined by ECM according to the input signals.  
FPCM Hi/Mid/Low/Off     The control condition of the fuel pump control module (FPCM) (determined by 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.  
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)    
DIST SW On/Off     Indicates [On/Off] condition from DISTANCE switch signal.  
BRAKE SW2 On/Off     Indicates [On/Off] condition of stop lamp switch signal.  
BRAKE SW1 On/Off     Indicates [On/Off] condition from brake pedal position switch signal.  
SET SW On/Off     Indicates [On/Off] condition from COAST/SET switch signal.  
RESUME/ACC SW On/Off     Indicates [On/Off] condition from ACCEL/RES switch signal.  
CANCEL SW On/Off     Indicates [On/Off] condition from CANCEL switch signal.  
MAIN SW On/Off     Indicates [On/Off] condition from MAIN switch signal.  
SET LAMP On/Off     Indicates [On/Off] condition of SET lamp determined by the ECM according to the input signals.  
AT OD CANCEL On/Off     Indicates [On/Off] condition of CVT O/D cancel request signal.  
AT OD MONITOR On/Off     Indicates [On/Off] condition of CVT O/D according to the input signal from the TCM.  
CRUISE LAMP On/Off     Indicates [On/Off] condition of CRUISE lamp determined by the ECM according to the input signals.  
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, and ASCD operation is cut off.
  
VHCL SPD 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.
  
VIAS S/V-2 On/Off     The control condition of the VIAS control solenoid valve 2 (determined by ECM according to the input sig-nals) is indicated.
  • On: VIAS control solenoid valve 2 is operating
  • Off: VIAS control solenoid valve 2 is not operating
  
HO2 S2 DIAG1 (B2) INCMP/CMPLT     Indicates DTC P0159 self - diagnosis (delayed response) condition.
  • INCMP: Self - diagnosis is incomplete.
  • CMPLT: Self - diagnosis is complete.
  
HO2 S2 DIAG1 (B1) INCMP/CMPLT     Indicates DTC P0139 self - diagnosis (delayed 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.
  
HO2 S2 DIAG2 (B1) INCMP/CMPLT     Indicates DTC P0139 self-diagnosis (slow response) condition.
  • INCMP: Self-diagnosis is incomplete.
  • CMPLT: Self-diagnosis is complete.
  
EVAP LEAK DIAG YET/CMPLT     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 On/Off     Indicates the ready condition of EVAP leak diagnosis.
  • On: Diagnosis has been ready condition.
  • Off: Diagnosis has not been ready condition.
  
SYSTEM 1 DIAGNOSIS A B2 INCMP/CMPLT     Indicates DTC P219B self - diagnosis condition.
  • INCMP: Self - diagnosis is incomplete.
  • CMPLT: Self - diagnosis is complete.
  
SYSTEM 1 DIAGNOSIS A B1 INCMP/CMPLT     Indicates DTC P219A self - diagnosis condition.
  • INCMP: Self - diagnosis is incomplete.
  • CMPLT: Self - diagnosis is complete.
  
A/F SEN1 DIAG1 (B2) INCMP/CMPLT     Indicates DTC P015C or P015D self-diagnosis condition.
  • INCMP: Self-diagnosis is incomplete.
  • CMPLT: Self-diagnosis is complete.
  
A/F SEN1 DIAG1 (B1) INCMP/CMPLT     Indicates DTC P015A or P015B self-diagnosis condition.
  • INCMP: Self-diagnosis is incomplete.
  • CMPLT: Self-diagnosis is complete.
  
A/F SEN1 DIAG2 (B2) INCMP/CMPLT     Indicates DTC P014E or P014F self-diagnosis condition.
  • INCMP: Self-diagnosis is incomplete.
  • CMPLT: Self-diagnosis is complete.
  
A/F SEN1 DIAG2 (B1) INCMP/CMPLT     Indicates DTC P014C or P014D self-diagnosis condition.
  • INCMP: Self-diagnosis is incomplete.
  • CMPLT: Self-diagnosis is complete.
  
SYSTEM 1 DIAGNOSIS B B2 ABSNT/PRSNT     Indicates DTC P219B self - diagnosis condition.
  • ABSNT: Self - diagnosis standby
  • PRSNT: Under self - diagnosis
  
SYSTEM 1 DIAGNOSIS B B1 ABSNT/PRSNT     Indicates DTC P219A self - diagnosis condition.
  • ABSNT: Self - diagnosis standby
  • PRSNT: Under self - diagnosis
  
A/F SEN1 DIAG3 (B2) ABSNT/PRSNT     Indicates DTC P014C, P014D, P015A or P015B self-diagnosis condition.
  • ABSNT: The vehicle condition is not within the diagnosis range.
  • PRSNT: The vehicle condition is within the diagnosis range.
  
A/F SEN1 DIAG3 (B1) ABSNT/PRSNT     Indicates DTC P014E, P014F, P015C or P015D self-diagnosis condition.
  • ABSNT: The vehicle condition is not within the diagnosis range.
  • PRSNT: The vehicle condition is within the diagnosis range.
  
NOTE:

Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.

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