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Home >> Nissan-Datsun >> 2021 >> Titan SL, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (1 Of 3) >> System Description >> Diagnosis System (ECM) >> CONSULT Function >> Data Monitor Mode
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Data Monitor Mode

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 Reference Value .

x: Applicable

Monitored item

Unit

Description

Remarks

ENG SPEED

RPM

  • Indicates the engine speed computed from the signal of the crankshaft position sensor and camshaft position sensor.
  • 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

  • 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

  • "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.
  • This data also includes the data for the air-fuel ratio learning control.
  • When engine is running, specification range is indicated in "SPEC".

A/F ALPHA-B2

COOLAN TEMP/S

deg. C or deg. F

  • The engine coolant temperature (determined by the signal voltage of the engine coolant temperature sensor 1) is displayed.
  • When the engine coolant temperature sensor 1 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

  • 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)

V

  • 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 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)

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.

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 T/TMP SE

deg. C or deg. F

  • The fuel temperature (determined by the signal voltage of the fuel tank temperature sensor) is displayed.

FUEL PUMP RLY

ON/OFF

Indicates the fuel pump relay control condition determined by ECM according to the input signals.

EVAP SYS PRES

V

  • The signal voltage of EVAP control system pressure sensor is displayed.

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 A/T O/D cancel signal sent from the TCM.

  • For M/T models always "OFF" is displayed.

AT OD MONITOR

ON/OFF

Indicates [ON/OFF] condition of A/T O/D according to the input signal from the TCM.

  • For M/T models always "OFF" is displayed.

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.

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.

SET VHCL SPD

km/h or mph

  • The preset vehicle speed is displayed.

VTC DTY EX B1

%

  • The control value of the exhaust valve timing control solenoid valve (determined by ECM according to the input signals) is indicated.
  • The advance angle becomes larger as the value increases.

VTC DTY EX B2

FUEL LEVEL SE

V

  • 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

  • Indicates idle position [ON/OFF] computed by ECM according to the accelerator pedal position sensor signal.

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.

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.

IGNITION SW

ON/OFF

  • Indicates [ON/OFF] condition from ignition switch signal.

HEATER FAN SW

ON/OFF

  • Indicates [ON/OFF] condition from the blower fan ON signal.

BRAKE SW

ON/OFF

  • Indicates [ON/OFF] condition from the stop lamp switch signal.

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.

COMBUSTION

--

  • These items are displayed but are not applicable to this model.

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 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.

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 (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)

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)

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

  • The vehicle speed computed from the vehicle speed signal sent from TCM is displayed.

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.

TRVL AFTER MIL

km or mile

  • Distance traveled while MIL is activated.

SNOW MODE SW

ON/OFF

  • Indicates [ON/OFF] condition from the snow mode switch signal.

ENG OIL TEMP

deg. C or deg. F

  • The engine oil temperature (determined by the signal voltage of the engine oil temperature sensor) 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 ACCELERATE/RESUME switch signal.

SET SW

ON/OFF

  • Indicates [ON/OFF] condition from COAST/SET switch signal.

BRAKE SW1

ON/OFF

  • Indicates [ON/OFF] condition from brake pedal position switch signal.

BRAKE SW2

ON/OFF

  • Indicates [ON/OFF] condition of stop lamp switch signal.

DIST SW

ON/OFF

  • Indicates [ON/OFF] condition from DISTANCE switch signal.

CRUISE LAMP

ON/OFF

  • Indicates [ON/OFF] condition of CRUISE indicator determined by the ECM according to the input signals.

AC EVA TEMP

deg. C or deg. F

  • Indicates A/C evaporator temperature sent from A/C auto amp.

AC EVA TARGET

deg. C or deg. F

  • Indicates target A/C evaporator temperature sent from A/C auto amp.

FAN DUTY

%

  • Indicates a command value for cooling fan. The value is calculated by ECM based on input signals.

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 of a 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

P/N POSI SW

ON/OFF

  • Indicates [ON/OFF] condition from the park/neutral position (PNP) signal.

INT/A TEMP SE

deg. C or deg. F

  • 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.

FUEL PRES SEN

MPa

  • Indicates the fuel rail pressure computed by ECM according to the input signals

FUEL INJ B1

msec

  • ECM-calculated injection pulse width of the fuel injector on the Bank 1 side.

FUEL INJ B2

msec

  • ECM-calculated injection pulse width of the fuel injector on the Bank 2 side.

INT/V TIM (B1)

deg. CA

  • Indicates [ deg. CA] of intake camshaft advance angle.

INT/V TIM (B2)

MAP SENSOR

V

  • The signal voltage from the manifold absolute pressure (MAP) sensor is displayed.

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.

VVEL LEARN

YET/DONE

  • Display the condition of VVEL learning

    YET: VVEL learning has not been performed yet.

    DONE: VVEL learning has already been performed successfully.

VVEL SEN LEARN-B1

V

  • Indicates the VVEL learning value.

VVEL SEN LEARN-B2

VVEL POSITION SEN-B1

V

  • The VVEL control shaft position sensor signal voltage is displayed.

VVEL POSITION SEN-B2

VVEL TIM-B1

deg

  • Indicates [deg] of VVEL control shaft angle.

VVEL TIM-B2

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.

BAT TEMP SEN

V

  • The signal voltage from the battery temperature sensor is displayed.

COOLING FAN SPD

RPM

  • Displays a cooling fan speed from a signal of fan clutch assembly.

THRTL STK CNT B1 *

--

--

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 DIAG1(B2)

INCMP/CMPLT

  • Indicates DTC P0159 self-diagnosis (delayed 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.

HO2 S2 DIAG2(B2)

INCMP/CMPLT

  • Indicates DTC P0159 self-diagnosis (slow response) condition.

    INCMP: Self-diagnosis is incomplete.

    CMPLT: Self-diagnosis is complete.

FUEL INJ TIMG

deg

  • Indicates the fuel injection timing computed by ECM according to the input signals.

H/P FUEL PUMP DEG

deg

  • Displays ECM-calculated fuel discharge position of the high pressure fuel pump.

FUEL PRES SEN V

mV

  • The signal voltage of FRP sensor is displayed.

L/FUEL PRES SEN

MPa

  • Displays a pressure value calculated from a low fuel pressure sensor voltage.

L/FUEL PRES SEN V

mV

  • The signal voltage of low fuel pressure sensor is displayed.

ECM TEMP 1

deg. C or deg. F

  • Displays a temperature calculated from a signal of ECM temperature sensor 1.

ECM TEMP 2

deg. C or deg. F

  • Displays a temperature calculated from a signal of ECM temperature sensor 2.

FUEL PUMP DUTY

%

  • The control condition of the fuel pump control module (FPCM) (determined by ECM according to the input signals) is indicated.

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 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 DIAG2 (B1)

INCMP/CMPLT

  • Indicates DTC P014C or P014D 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 DIAG3 (B1)

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 (B2)

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.

SYSTEM 1 DIAGNOSIS A B1

INCMP/CMPLT

  • Indicates DTC P219A self-diagnosis condition.
    • INCMP: Self-diagnosis is incomplete.
    • CMPLT: Self-diagnosis is complete.

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 B B1

ABSNT/PRSNT

  • Indicates DTC P219A self-diagnosis condition.
    • ABSNT: Self-diagnosis standby
    • PRSNT: Under self-diagnosis

SYSTEM 1 DIAGNOSIS B B2

ABSNT/PRSNT

  • Indicates DTC P219B self-diagnosis condition.
    • ABSNT: Self-diagnosis standby
    • PRSNT: Under self-diagnosis

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 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 UP B1

count

  • Displays the number of updates of the A/F sensor atmospheric correction factor.

A/F-S ATMSPHRC CRCT UP B2

count

  • Displays the number of updates of the A/F sensor atmospheric correction factor.

EXH/V TIM B1

deg. CA

  • Indicates [ deg. CA] of exhaust camshaft retard angle.

EXH/V TIM B2

EXH V/T LEARN

YET/CMPLT

  • Display the condition of Exhaust Valve Timing Control Learning

    YET: Exhaust Valve Timing Control Learning has not been performed yet.

    CMPLT: Exhaust Valve Timing Control Learning has already been performed successfully.

EXHAUST GAS TEMP SEN 1 B1

mV

  • The signal voltage of exhaust gas temperature sensor (bank 1) is displayed.

EXHAUST GAS TEMP SEN 1 B2

mV

  • The signal voltage of exhaust gas temperature sensor (bank 2) is displayed.

EOP SENSOR

mV

  • The signal voltage of engine oil pressure sensor is displayed.

RADIATOR COOLANT TEMP

deg. C or deg. F

Description: The radiator coolant temperature (determined by the signal voltage of the radiator coolant temperature sensor) is displayed.

ENGINE COOLANT B/V POSI

deg

Description: The Multi-way Control Valve position detected by the position sensor is displayed.

A/F IMBALNC DIAG-CPS STAT

ABSNT/PRSNT

  • Indicates DTC P219C - P219F and P21A0 - P21A3 self-diagnosis condition.

    ABSNT: The vehicle condition is not within the diagnosis range.

    PRSNT: The vehicle condition is within the diagnosis range.

A/F IMBALNC DIAG-CPS CMPLT

INCMP/CMPLT

  • Indicates DTC P219C - P219F and P21A0 - P21A3 self-diagnosis condition.
    • INCMP: Self-diagnosis is incomplete.
    • CMPLT: Self-diagnosis is complete.

A/GRLL SHTTR POSITION

F/CLOSE

MOVING

F/OPEN

UNIDTF

Indicates the status of active grille shutter.

  • F/CLOSE: Active grille shutter is fully closed.
  • MOVING: Active grille shutter is in motion.
  • F/OPEN: Active grille shutter is fully opened.
  • UNIDTF: Unable to specify the shutter position.

A/GRLL SHTTR CALIBRATION

INCMP/CMPLT

  • Indicates initial position learning status of active grille shutter.
    • CMPLT: The leaning is complete.
    • INCOMP: The learning is incomplete.

A/GRLL SHTTR CIRCUIT DIAG

OK/NG

  • Indicates the diagnosis result of active grille shutter circuit.
    • OK: Normal.
    • NG: Malfunction detected.

A/GRLL SHTTR TEMP DIAG

OK/NG

  • Indicates the diagnosis result of active grille shutter actuator temperature status.
    • OK: Normal
    • NG: Abnormal temperature detected.

A/GRLL SHTTR VOLT DIAG

OK/NG

  • Indicates the diagnosis result of active grille shutter actuator voltage status.
    • OK: Normal
    • NG: Abnormal temperature detected.

A/GRLL SHTTR OVER RUN

OK/NG

  • Indicates active grille shutter moves beyond normal moving limit.
    • OK: Normal
    • NG: Malfunction detected.

A/GRLL SHTTR STUCK

OK/NG

  • Indicates the diagnosis result of active grille shutter stuck or the operation range less than normal.
    • OK: Normal
    • NG: Malfunction detected.

A/GRLL SHTTR CALIB DIAG

OK/NG

  • Indicates the diagnosis result of initial position learning of active grille shutter.
    • OK: Normal
    • NG: Deficiency detected.

*: 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.