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Home >> Nissan-Datsun >> 2008 >> Sentra SE-R >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - Introduction (Qr25DE) >> Trouble Diagnosis >> CONSULT-III Reference Value in Data Monitor Mode
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CONSULT-III Reference Value in Data Monitor Mode

Remarks:

* Specification data may not be directly related to their components signals/values/operations.

i.e. Adjust ignition timing with a timing light before monitoring IGN TIMING, because the monitor may show the specification data in spite of the ignition timing not being adjusted to the specification data. This IGN TIMING monitors the data calculated by the ECM according to the signals input from the camshaft position sensor and other ignition timing related sensors.

CONSULT-III REFERENCE VALUE CHART

MONITOR ITEM CONDITION SPECIFICATION
ENG SPEED
  • Run engine and compare CONSULT-III value with the tachometer indication.
Almost the same speed as the tachometer indication.
MAS A/F SE-B1 See "TROUBLE DIAGNOSIS - SPECIFICATION VALUE ".
B/FUEL SCHDL See "TROUBLE DIAGNOSIS - SPECIFICATION VALUE ".
A/F ALPHA-B1
A/F ALPHA-B2
See "TROUBLE DIAGNOSIS - SPECIFICATION VALUE ".
COOLAN TEMP/S
  • Engine: After warming up
More than 70°C (158°F)
A/F SEN1 (B1)
A/F SEN1 (B2)
  • Engine: After warming up
Maintaining engine speed at 2, 000 RPM Fluctuates around 2.2V
HO2S2 (B1)
HO2S2 (B2)
  • Revving engine from idle to 3, 000 RPM quickly 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
0 - 0.3V ← → Approx. 0.6 - 1.0V
HO2S2 MNTR (B1)
HO2S2 MNTR (B2)
  • Revving engine from idle to 3, 000 RPM quickly 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
LEAN ← → RICH
VHCL SPEED SE
  • Turn drive wheels and compare CONSULT-III value with the speedometer indication.
Almost the same speed as the speedometer indication.
BATTERY VOLT
  • Ignition switch: ON (Engine stopped)
11 - 14V
ACCEL SEN 1
  • Ignition switch: ON (Engine stopped)
  • Shift lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully released 0.6 - 0.9V
Accelerator pedal: Fully depressed 4.0 - 4.8V
ACCEL SEN 2(1)
  • Ignition switch: ON (Engine stopped)
  • Shift lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully released 0.6 - 0.9V
Accelerator pedal: Fully depressed 3.9 - 4.8V
THRL SEN 1-B1
THRL SEN 2-B1(1)
  • Ignition switch: ON (Engine stopped)
  • Shift lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully released More than 0.36V
Accelerator pedal: Fully depressed Less than 4.75V
VEHICLE SPEED
  • Turn drive wheels and compare CONSULT-III value with speedometer indication.
Almost the same speed as the speedometer indication
EVAP SYS PRES
  • Ignition switch: ON
1.8 - 4.8V
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
P/N POSI SW
  • Ignition switch: ON
Shift lever: P or N (CVT), Neutral (M/T) ON
Shift lever: Except above position OFF
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 is OFF 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: Operating ON
Heater fan: Not operating OFF
BRAKE SW
  • Ignition switch: ON
Brake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
I/P PULLY SPD
  • Vehicle speed: More than 20 km/h (12 MPH)
Almost the same speed as the tachometer indication
INJ PULSE-B1
  • Engine: After warming up
  • Shift lever: P or N (CVT), Neutral (M/T)
  • Air conditioner switch: OFF
  • No load
Idle 2.0 - 3.0 msec
INJ PULSE-B2 2, 000 RPM 1.9 - 2.9 msec
IGN TIMING
  • Engine: After warming up
  • Shift lever: P or N (CVT), Neutral (M/T)
  • Air conditioner switch: OFF
  • No load
Idle 5° - 15° BTDC
2, 000 RPM 25° - 45° BTDC
CAL/LD VALUE
  • Engine: After warming up
  • Shift lever: P or N (CVT), Neutral (M/T)
  • Air conditioner switch: OFF
  • No load
Idle 10% - 35%
2, 500 RPM 10% - 35%
MASS AIRFLOW
  • Engine: After warming up
  • Shift lever: P or N (CVT), Neutral (M/T)
  • Air conditioner switch: OFF
  • No load
Idle 1.0 - 4.0 g.m/s
2, 500 RPM 4.0 - 10.0 g.m/s
PURG VOL C/V
  • Engine: After warming up
  • Shift lever: P or N (CVT), Neutral (M/T)
  • Air conditioner switch: OFF
  • No load
Idle (Accelerator pedal: Not depressed even slightly, after engine starting) 0%
2, 000 RPM 20 - 90%
INT/V TIM (B1)
  • Engine: After warming up
  • Shift lever: P or N (CVT), Neutral (M/T)
  • Air conditioner switch: OFF
  • No load
Idle -5° - 5°CA
2, 000 RPM Approx. 0° - 20°CA
INT/V SOL (B1)
  • Engine: After warming up
  • Shift lever: P or N (CVT), Neutral (M/T)
  • Air conditioner switch: OFF
  • No load
Idle 0%
2, 000 RPM Approx. 0% - 60%
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 seconds after turning ignition switch ON
  • Engine running or cranking
ON
  • Except above conditions
OFF
VENT CONT/V
  • Ignition switch: ON
OFF
THRTL RELAY
  • Ignition switch: ON
ON
COOLING FAN
  • Engine: After warming up, idle the engine
  • Air conditioner switch: OFF
Engine coolant temperature is 97°C (207°F) or less OFF
Engine coolant temperature is between 98°C (208°F) and 99°C (210°F) LOW
Engine coolant temperature is 100°C (212°F) or more HIGH
HO2S2 HTR (B1)
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
TRVL AFTER MIL
  • Ignition switch: ON
Vehicle has traveled after MIL has turned ON. 0 - 65, 535 km (0 - 40, 723 mile)
A/F S1 HTR (B1)
A/F S1 HTR (B2)
  • Engine: After warming up, idle the engine (More than 140 seconds after starting engine.)
4 - 100%
AC PRESS SEN
  • Both A/C switch and blower fan switch: ON (Compressor operates)
  • Engine: Idle
1.0 - 4.0V
VHCL SPEED SE
  • Turn drive wheels and compare the CONSULT-III value with 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
RESUME/ACCELERATE switch: Pressed ON
RESUME/ACCELERATE switch: Released OFF
SET SW
  • Ignition switch: ON
SET/COAST switch: Pressed ON
SET/COAST switch: Released OFF
BRAKE SW1 (ASCD brake switch)
  • Ignition switch: ON
  • Brake pedal: Fully released (CVT)
  • Brake peal and clutch pedal: Fully released (M/T)
ON
  • Brake pedal: Slightly depressed (CVT)
  • Brake peal and/or clutch pedal: Slightly depressed (M/T)
OFF
BRAKE SW2 (Stop lamp switch)
  • Ignition switch: ON
Brake pedal: Fully released OFF
Brake pedal: Slightly depressed ON
CRUISE LAMP
  • Ignition switch: ON
MAIN switch: Pressed at the 1st time --> 2nd time ON --> OFF
SET LAMP
  • MAIN switch: ON
  • When vehicle speed is between 40 km/h (25 MPH) and 144 km/h (89 MPH)
ACSD: Operating ON
ASCD: Not operating OFF
(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.