LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2016 >> Q50 Base, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 47 (Engine Control System (Introduction) (Hybrid)) >> Ecu Diagnosis Information >> ECM >> Reference Value >> Values On The Diagnosis Tool
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Values On The Diagnosis Tool

WARNING: This page is about a different variant/trim than selected.
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 camshaft position sensor and other sensors related to ignition timing.

  • If necessary, perform "INSPECTION MODE 5". Refer to DESCRIPTION .
  • 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 DESCRIPTION .
MAS A/F SE-B2 See DESCRIPTION .
B/FUEL SCHDL See DESCRIPTION .
A/F ALPHA-B1 See DESCRIPTION .
A/F ALPHA-B2 See DESCRIPTION .
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
A/F SEN1 (B2)
  • 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 at 3, 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 at 3, 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 at 3, 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 at 3, 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
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
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 12°- 16° BTDC
2, 000 RPM 25°- 45° 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) °CA
2, 000 RPM Approx. 0 - 30°CA
INT/V TIM (B2)
  • Engine: After warming up
  • Selector lever: P or N
  • Air conditioner switch: OFF
  • No load
Idle (- 5) - (5) °CA
2, 000 RPM Approx. 0 - 30°CA
EXH/V TIM B1
  • Engine: After warming up
  • Selector lever: P or N
  • Air conditioner switch: OFF
  • No load
Idle (- 5) - (5) °CA
Around 2, 500 RPM while the engine speed is rising Approx. 0 - 30°CA
EXH/V TIM B2
  • Engine: After warming up
  • Selector lever: P or N
  • Air conditioner switch: OFF
  • No load
Idle (- 5) - (5) °CA
Around 2, 500 RPM while the engine speed is rising Approx. 0 - 30°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%
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
AIR COND RLY
  • Engine: After warming up, idle the engine
Air conditioner switch: OFF OFF
Air conditioner switch: ON
(Compressor operates)
ON
HO2S2 HTR (B1)
  • Engine speed: Below 3, 000 RPM after the following conditions are met.
    • Engine: After warming up
    • Keeping the engine speed at 3, 000 RPM for 1 minute and at idle for 1 minute under no load
ON
  • Engine speed: Above 3, 000 RPM
OFF
HO2S2 HTR (B2)
  • Engine speed: Below 3, 000 RPM after the following conditions are met.
    • Engine: After warming up
    • Keeping the engine speed at 3, 000 RPM for 1 minute and at idle for 1 minute under no load
ON
  • Engine speed: Above 3, 000 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
ENG OIL TEMP
  • Engine: After warming up
More than 70°C (158°F)
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%
A/F S1 HTR (B2)
  • Engine: After warming up, idle the engine

    (More than 140 seconds after starting engine)

4 - 100%
FAN DUTY
  • Engine: Running
0 - 100%
ATOM PRES SEN
  • Engine: Idle
0 - 4.8 V
A/F ADJ-B1
  • Engine: Running
- 0.330 - 0.330
A/F ADJ-B2
  • Engine: Running
- 0.330 - 0.330
TP SEN 1-B2
  • Ignition switch: ON

    (Engine stopped)

  • Selector lever: D
Accelerator pedal: Fully released More than 360 mV
Accelerator pedal: Fully depressed Less than 4, 750 mV
TP SEN 2-B2* 1
  • Ignition switch: ON

    (Engine stopped)

  • Selector lever: D
Accelerator pedal: Fully released More than 360 mV
Accelerator pedal: Fully depressed Less than 4, 750 mV
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
VTC DTY EX B1
  • This item is displayed but is not applicable to this model.
VTC DTY EX B2
  • This item is displayed but is not applicable to this model.
ACCEL PEDAL POSI
  • Ignition switch: ON
Depending on accelerator pedal position
ENG START RQST
  • Ignition switch: ON (READY)
Depending on signals from HPCM
ENG F/C RQST
  • Ignition switch: ON (READY)
Depending on signals from HPCM
EVAP LEAK DIAG
  • Ignition switch: ON
Depending on condition of EVAP leak diagnosis
EVAP DIAG READY
  • Ignition switch: ON
Depending on ready condition of EVAP leak diagnosis
THRTL STK CNT B1
  • This item is displayed but is not applicable to this model.
THRTL STK CNT B2
  • This item is displayed but is not applicable to this model.
EOP SENSOR
  • Engine: After warming up
  • Selector lever: P or N
  • Air conditioner switch: OFF
  • No load
Idle Approx. 1, 450 mV
2, 000 RPM Approx. 2, 850 mV
TARGET ENGINE TORQUE
  • Engine: After warming up
Depending on command value from HPCM
IDLE REQUEST
  • Engine: After warming up
HPCM: Idle request YES
Other than the above NO
MIL ON REQUEST
  • Ignition switch: ON
HPCM: MIL ON request YES
Other than the above NO
ENGINE NO-LOAD
  • Engine: After warming up
Clutch 1: Disengage YES
Clutch 1: Engage NO
READY STATE
  • Ignition switch: ON
HPCM: READY state YES
Other than the above NO
ENGINE NO-LOAD REQUEST 1
  • When performing idle air volume learning (Performed with CONSULT)
YES
  • Other than the above
NO
ENGINE NO-LOAD REQUEST 2
  • When performing idle air volume learning (Without CONSULT)
YES
  • Other than the above
NO
IDLE STOP INHIBIT REQUEST
  • Engine speed: Above 1, 200 RPM
  • Accelerator pedal: Fully released
YES
  • Other than the above
NO
HO2 S2 DIAG1 (B1) DTC P0139 self - diagnosis (delayed response) is incomplete. INCMP
DTC P0139 self - diagnosis (delayed response) is complete. CMPLT
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 (B1) DTC P0139 self - diagnosis (slow response) is incomplete. INCMP
DTC P0139 self - diagnosis (slow 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
A/F SEN1 DIAG1 (B1) DTC P015A and P015B self - diagnosis is incomplete. INCMP
DTC P015A and P015B self - diagnosis is complete. CMPLT
A/F SEN1 DIAG1 (B2) DTC P015C and P015D self - diagnosis is incomplete. INCMP
DTC P015C and P015D self - diagnosis is complete. CMPLT
A/F SEN1 DIAG2 (B1) DTC P014C, P014D self - diagnosis (slow response) is incomplete. INCMP
DTC P014C, P014D self - diagnosis (slow response) is complete. CMPLT
A/F SEN1 DIAG2 (B2) DTC P014E, P014F self - diagnosis (slow response) is incomplete. INCMP
DTC P014E, P014F self - diagnosis (slow response) 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
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
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.
P0510 DETECTION CAUSE CAUSE DTC P0510 is not detected by HPCM. NONE* 2
P314C DETECTION CAUSE CAUSE DTC P314C is not detected by HPCM. NONE* 2
P314D DETECTION CAUSE CAUSE DTC P314D is not detected by HPCM. NONE* 2
P314E DETECTION CAUSE CAUSE DTC P314E is not detected by HPCM. NONE* 2
P3155 DETECTION CAUSE CAUSE DTC P3155 is not detected by HPCM. NONE* 2

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

*2: If DTC is displayed and no DTC is detected by HPCM, this is not a malfunction. In this case, erase Self diagnostic result of ECM to clear the displayed DTC.