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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 470 (Engine Control System) >> Ecu Diagnosis Information >> ECM >> Values on the Diagnosis Tool

Values on the Diagnosis Tool

WARNING: This page is about a different car, the 2019 Nissan NV3500 HD, 2019 Nissan NV2500 HD, and 2019 Nissan NV1500. 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.
  • Numerical values in the following table are reference values.
  • These values are input/output values that ECM receives/transmits and may differ from actual operations.

Example: The ignition timing shown by the timing light may differ from the ignition timing displayed on the data monitor. This occurs because the timing light shows a value calculated by ECM according to signals received from the cam shaft position sensor and other sensors related to ignition timing.

For outlines of following items, refer to CONSULT Function .

CONSULT MONITOR ITEM

Monitor Item

Condition

Values/Status

ENG SPEED
  • Run engine and compare CONSULT value with the tachometer indication.

Almost the same speed as the tachometer indication

MAS A/F SE-B1

See CONSULT Function .

B/FUEL SCHDL

See CONSULT Function .

A/F ALPHA-B1

See CONSULT Function .

A/F ALPHA-B2

See CONSULT Function .

COOLAN TEMP/S
  • Ignition switch: ON

Indicates engine coolant temperature

A/F SEN1 (B1)
  • Engine: After warming up

Maintaining engine speed at 2, 000 rpm

Fluctuates around 2.2 V

HO2S2 (B1)
  • Revving engine from idle up to 3, 000 rpm quickly after the following conditions are met.
    • Engine: After warming up
    • After keeping engine speed between 3, 500 and 4, 000 rpm for 1 minute and at idle for 1 minute under no load

0 - 0.3 V <--> Approx. 0.6 - 1.0 V

HO2S2 (B2)
  • Revving engine from idle up to 3, 000 rpm quickly after the following conditions are met.
    • Engine: After warming up
    • After keeping engine speed between 3, 500 and 4, 000 rpm for 1 minute and at idle for 1 minute under no load

0 - 0.3 V <--> Approx. 0.6 - 1.0 V

HO2S2 MNTR (B1)
  • Revving engine from idle up to 3, 000 rpm quickly after the following conditions are met.
    • Engine: After warming up
    • After keeping engine speed between 3, 500 and 4, 000 rpm for 1 minute and at idle for 1 minute under no load

LEAN <--> RICH

HO2S2 MNTR (B2)
  • Revving engine from idle up to 3, 000 rpm quickly after the following conditions are met.
    • Engine: After warming up
    • After keeping engine speed between 3, 500 and 4, 000 rpm for 1 minute and at idle for 1 minute under no load

LEAN <--> RICH

VHCL SPEED SE
  • Turn drive wheels and compare CONSULT value with the speedometer indication.

Almost the same speed as speedometer indication

BATTERY VOLT
  • Ignition switch: ON (Engine stopped)

11 - 14 V

ACCEL SEN 1
  • Ignition switch: ON

    (Engine stopped)

Accelerator pedal: Fully released

0.65 - 0.87 V

Accelerator pedal: Fully depressed

More than 4.3 V

ACCEL SEN 2* 1
  • Ignition switch: ON

    (Engine stopped)

Accelerator pedal: Fully released

0.56 - 0.96 V

Accelerator pedal: Fully depressed

More than 4.0 V

TP SEN 1-B1
  • Ignition switch: ON

    (Engine stopped)

  • Selector lever: D

Accelerator pedal: Fully released

More than 0.36 V

Accelerator pedal: Fully depressed

Less than 4.75 V

TP SEN 2-B1* 1
  • Ignition switch: ON

    (Engine stopped)

  • Selector lever: D

Accelerator pedal: Fully released

More than 0.36 V

Accelerator pedal: Fully depressed

Less than 4.75 V

FUEL T/TMP SE
  • Ignition switch: ON

Indicates fuel tank temperature

EVAP SYS PRES
  • Ignition switch: ON

Approx. 1.8 - 4.8 V

FUEL LEVEL SE
  • Ignition switch: ON

Depending on fuel level of fuel tank

START SIGNAL
  • Ignition switch: ON -> START -> ON

OFF -> ON -> OFF

CLSD THL POS
  • Ignition switch: ON

    (Engine stopped)

Accelerator pedal: Fully released

ON

Accelerator pedal: Slightly depressed

OFF

AIR COND SIG
  • Engine: After warming up, idle the engine

Air conditioner switch: OFF

OFF

Air conditioner switch: ON

(Compressor operates.)

ON

PW/ST SIGNAL
  • Engine: After warming up, idle the engine

Steering wheel: Not being turned

OFF

Steering wheel: Being turned

ON

LOAD SIGNAL
  • Ignition switch: ON

Rear window defogger switch: ON

and/or

Lighting switch: 2nd position

ON

Rear window defogger switch and lighting switch: OFF

OFF

IGNITION SW
  • Ignition switch: ON -> OFF -> ON

ON -> OFF -> ON

HEATER FAN SW
  • Engine: After warming up, idle the engine

Heater fan switch: ON

ON

Heater fan switch: OFF

OFF

BRAKE SW
  • Ignition switch: ON

Brake pedal: Fully released

OFF

Brake pedal: Slightly depressed

ON

INJ PULSE-B1
  • Engine: After warming up
  • Selector lever: P or N
  • Air conditioner switch: OFF
  • No load

Idle

2.0 - 3.0 msec

2, 000 rpm

1.9 - 2.9 msec

INJ PULSE-B2
  • Engine: After warming up
  • Selector lever: P or N
  • Air conditioner switch: OFF
  • No load

Idle

2.0 - 3.0 msec

2, 000 rpm

1.9 - 2.9 msec

IGN TIMING
  • Engine: After warming up
  • Selector lever: P or N
  • Air conditioner switch: OFF
  • No load

Idle

15 deg. - 16 deg. BTDC

2, 000 rpm

20 deg. - 21 deg. BTDC

CAL/LD VALUE
  • Engine: After warming up
  • Selector lever: P or N
  • Air conditioner switch: OFF
  • No load

Idle

5% - 35%

2, 500 rpm

5% - 35%

MASS AIRFLOW
  • Engine: After warming up
  • Selector lever: P or N
  • Air conditioner switch: OFF
  • No load

Idle

2.0 - 6.0 g/s

2, 500 rpm

7.0 - 20.0 g/s

PURG VOL C/V
  • Engine: After warming up
  • Selector lever: P or N
  • Air conditioner switch: OFF
  • No load

Idle

(Accelerator pedal: Not depressed even slightly, after engine starting.)

0%

2, 000 rpm

--

INT/V TIM (B1)
  • Engine: After warming up
  • Selector lever: P or N
  • Air conditioner switch: OFF
  • No load

Idle

- 5 - 5 deg.CA

2, 000 rpm

Approx. 0 - 30 deg.CA

INT/V TIM (B2)
  • Engine: After warming up
  • Selector lever: P or N
  • Air conditioner switch: OFF
  • No load

Idle

- 5 - 5 deg.CA

2, 000 rpm

Approx. 0 - 30 deg.CA

INT/V SOL (B1)
  • Engine: After warming up
  • Selector lever: P or N
  • Air conditioner switch: OFF
  • No load

Idle

0 - 2%

2, 000 rpm

Approx. 0 - 50%

INT/V SOL (B2)
  • Engine: After warming up
  • Selector lever: P or N
  • Air conditioner switch: OFF
  • No load

Idle

0 - 2%

2, 000 rpm

Approx. 0 - 50%

VIAS S/V-1
  • Engine: After warming up

2, 200 - 3, 300 rpm

ON

Except above conditions

OFF

AIR COND RLY
  • Engine: After warming up, idle the engine

Air conditioner switch: OFF

OFF

Air conditioner switch: ON

(Compressor operates)

ON

FUEL PUMP RLY
  • For 1 second after turning ignition switch: ON
  • Engine running or cranking

ON
  • Except above

OFF

VENT CONT/V
  • Ignition switch: ON

OFF

THRTL RELAY
  • Ignition switch: ON

ON

A/F S1 HTR (B2)
  • Engine: After warming up, idle the engine

    (More than 140 seconds after starting engine)

4 - 100%

COOLING FAN
  • Engine: After warming up, idle the engine
  • Air conditioner switch: OFF

Engine coolant temperature: 97 deg.C (207 deg.F) or less

OFF

Engine coolant temperature: Between 98 deg.C (208 deg.F) and 104 deg.C (219 deg.F)

LOW

Engine coolant temperature: 105 deg.C (221 deg.F) or more

HI

HO2S2 HTR (B1)
  • Engine speed: Below 3, 600 rpm after the following conditions are met.
    • Engine: After warming up
    • Keeping the engine speed between 3, 500 and 4, 000 rpm for 1 minute and at idle for 1 minute under no load

ON
  • Engine speed: Above 3, 600 rpm

OFF

HO2S2 HTR (B2)
  • Engine speed: Below 3, 600 rpm after the following conditions are met.
    • Engine: After warming up
    • Keeping the engine speed between 3, 500 and 4, 000 rpm for 1 minute and at idle for 1 minute under no load

ON
  • Engine speed: Above 3, 600 rpm

OFF

I/P PULLY SPD
  • Vehicle speed: More than 20 km/h (12 MPH)

Almost the same speed as the tachometer indication

VEHICLE SPEED
  • Turn drive wheels and compare CONSULT value with the speedometer indication.

Almost the same speed as the speedometer indication

IDL A/V LEARN
  • Engine: Running

Idle air volume learning has not been performed yet.

YET

Idle air volume learning has already been performed successfully.

CMPLT

TRVL AFTER MIL
  • Ignition switch: ON

Vehicle has traveled after MIL has illuminated.

0 - 65, 535 km

(0 - 40, 723 miles)

A/F S1 HTR (B1)
  • Engine: After warming up, idle the engine

    (More than 140 seconds after starting engine)

4 - 100%

VHCL SPEED SE
  • Turn drive wheels and compare CONSULT value with the speedometer indication.

Almost the same speed as the speedometer indication

SET VHCL SPD
  • Engine: Running

ASCD: Operating

The preset vehicle speed is displayed

MAIN SW
  • Ignition switch: ON

MAIN switch: Pressed

ON

MAIN switch: Released

OFF

CANCEL SW
  • Ignition switch: ON

CANCEL switch: Pressed

ON

CANCEL switch: Released

OFF

RESUME/ACC SW
  • Ignition switch: ON

ACCEL/RES switch: Pressed

ON

ACCEL/RES switch: Released

OFF

SET SW
  • Ignition switch: ON

COAST/SET switch: Pressed

ON

COAST/SET switch: Released

OFF

BRAKE SW1

(Brake pedal position switch)
  • Ignition switch: ON

Brake pedal: Fully released

ON

Brake pedal: Slightly depressed

OFF

BRAKE SW2

(Stop lamp switch)
  • Ignition switch: ON

Brake pedal: Fully released

OFF

Brake pedal: Slightly depressed

ON

VHCL SPD CUT
  • Ignition switch: ON

NON

LO SPEED CUT
  • Ignition switch: ON

NON

AT OD MONITOR
  • Ignition switch: ON

OFF

AT OD CANCEL
  • Ignition switch: ON

OFF

CRUISE LAMP
  • Ignition switch: ON

MAIN switch: Pressed at the 1st time -> at the 2nd time

ON -> OFF

SET LAMP
  • MAIN switch: ON
  • When vehicle speed is between 38km/h (24MPH) and 144km/h (89MPH)

ASCD: Operating

ON

ASCD: Not operating

OFF

A/F ADJ-B1
  • Engine: Running

-0.330 - 0.330

A/F ADJ-B2
  • Engine: Running

-0.330 - 0.330

P/N POSI SW
  • Ignition switch: ON

Selector lever: P or N

ON

Selector lever: Except above

OFF

INT/A TEMP SE
  • Ignition switch: ON

Indicates intake air temperature

AC PRESS SEN
  • Engine: Idle
  • Both A/C switch and blower fan switch: ON (Compressor operates)

1.0 - 4.0 V

A/F SEN1 (B2)
  • Engine: After warming up

Maintaining engine speed at 2, 000 rpm

Fluctuates around 2.2 V

HO2 S2 DIAG1 (B2)

DTC P0159 self-diagnosis (delayed response) is incomplete.

INCMP

DTC P0159 self-diagnosis (delayed response) is complete.

CMPLT

HO2 S2 DIAG2 (B2)

DTC P0159 self-diagnosis (slow response) is incomplete.

INCMP

DTC P0159 self-diagnosis (slow response) is complete.

CMPLT

HO2 S2 DIAG2 (B1)

DTC P0139 self-diagnosis (slow response) is incomplete.

INCMP

DTC P0139 self-diagnosis (slow response) is complete.

CMPLT

HO2 S2 DIAG1 (B1)

DTC P0139 self-diagnosis (delayed response) is incomplete.

INCMP

DTC P0139 self-diagnosis (delayed response) is complete.

CMPLT

EVAP LEAK DIAG
  • Ignition switch: ON

Indicates the condition of EVAP leak diagnosis.

EVAP DIAG READY
  • Ignition switch: ON

Indicates the ready condition of EVAP leak diagnosis.

THRTL STK CNT B1
  • This item is displayed but is not applicable to this model.

A/F SEN1 DIAG1 (B1)

DTC P015A and P015B self-diagnosis incomplete.

INCMP

DTC P015A and P015B self-diagnosis is complete.

CMPLT

A/F SEN1 DIAG1 (B2)

DTC P015C and P015D self-diagnosis incomplete.

INCMP

DTC P015C and P015D self-diagnosis is complete.

CMPLT

A/F SEN1 DIAG2 (B1)

DTC P014C and P014D self-diagnosis incomplete.

INCMP

DTC P014C and P014D self-diagnosis is complete.

CMPLT

A/F SEN1 DIAG2 (B2)

DTC P014E and P014F self-diagnosis incomplete.

INCMP

DTC P014E and P014F self-diagnosis is complete.

CMPLT

A/F SEN1 DIAG3 (B1)

The vehicle condition is not within the diagnosis range of DTC P014C, P014D, P015A or P015B.

ABSNT

The vehicle condition is within the diagnosis range of DTC P014C, P014D, P015A or P015B.

PRSNT

A/F SEN1 DIAG3 (B2)

The vehicle condition is not within the diagnosis range of DTC P014E, P014F, P015C or P015D.

ABSNT

The vehicle condition is within the diagnosis range of DTC P014E, P014F, P015C or P015D.

PRSNT

A/F-S ATMSPHRC CRCT B1

Engine: After warming up, idle the engine

Varies depending on vehicle environment.

A/F-S ATMSPHRC CRCT B2

Engine: After warming up, idle the engine

Varies depending on vehicle environment.

A/F-S ATMSPHRC CRCT UP B1

Engine: Running

Varies depending on the number of updates.

A/F-S ATMSPHRC CRCT UP B2

Engine: Running

Varies depending on the number of updates.

SYSTEM 1 DIAGNOSIS A B1

DTC P219A self-diagnosis is incomplete.

INCMP

DTC P219A self-diagnosis is complete.

CMPLT

SYSTEM 1 DIAGNOSIS A B2

DTC P219B self-diagnosis is incomplete.

INCMP

DTC P219B self-diagnosis is complete.

CMPLT

SYSTEM 1 DIAGNOSIS B B1

DTC P219A self-diagnosis is on standby.

ABSENT

DTC P219A self-diagnosis is under diagnosis.

PRSENT

SYSTEM 1 DIAGNOSIS B B2

DTC P219B self-diagnosis is on standby.

ABSENT

DTC P219B self-diagnosis is under diagnosis.

PRSENT

*1: Accelerator pedal position sensor 2 signal and throttle position sensor 2 signal are converted by ECM internally. Thus, they differ from ECM terminals voltage signal.

*2: Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to How to Handle Battery .

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