CONSULT Function

FUNCTION 

Diagnostic test mode	Function
Self Diagnostic Result	Self-diagnostic results such as 1st trip DTC, DTCs and 1st trip freeze frame data or freeze frame data can be read and erased quickly.*
Data Monitor	Input/Output data in the ECM can be read.
Work Support	This mode enables a technician to adjust some devices faster and more accurately by following the indications on the CONSULT unit.
Active Test	Diagnostic Test Mode in which CONSULT drives some actuators apart from the ECMs and also shifts some parameters in a specified range.
ECU Identification	ECM part number can be read.
DTC Work Support	The status of system monitoring tests and the self-diagnosis status/result can be confirmed.

*: The following emission-related diagnostic information is cleared when the ECM memory is erased.

• Diagnostic trouble codes
• 1st trip diagnostic trouble codes
• Freeze frame data
• 1st trip freeze frame data
• System readiness test (SRT) codes
• Test values

SELF DIAGNOSTIC RESULT MODE 

Self Diagnostic Item 

Regarding items of DTC and 1st trip DTC, refer to DTC Index .

How to Read DTC and 1st Trip DTC 

DTCs and 1st trip DTCs related to the malfunction are displayed in "self-diag results".

• When ECM detects a 1st trip DTC, "1t" is displayed for "TIME".
• When ECM has detected a current DTC, "0" is displayed for "TIME".
• If "TIME" is neither "0" nor "1t", the DTC occurred in the past and ECM shows the number of times the vehicle has been driven since the last detection of the DTC.

How to Erase DTC and 1st Trip DTC 

1. Select "ENGINE" with CONSULT.
2. Select "SELF-DIAG RESULTS".
3. Touch "ERASE". (DTC in ECM will be erased.)

Freeze Frame Data and 1st Trip Freeze Frame Data 

Freeze frame data item*	Description
ODO/TRIP METER [km]	ODO/TRIP meter at the moment a malfunction is detected is displayed.
Warm up cycle counter
FUEL SYS - B1	"Fuel injection system status" at the moment a malfunction is detected is displayed. One mode in the following is displayed. Mode2: Open loop due to detected system malfunction. Mode3: Open loop due to driving conditions (power enrichment, deceleration enleanment). Mode4: Closed loop - using oxygen sensor (s) as feedback for fuel control. Mode5: Open loop - has not yet satisfied condition to go to closed loop
FUEL SYS - B2
CAL/LD VALUE	The calculated load value at the moment a malfunction is detected is displayed.
COOLANT TEMP	The engine coolant temperature at the moment a malfunction is detected is displayed.
L - FUEL TRM - B1	"Long-term fuel trim" at the moment a malfunction is detected is displayed. The long-term fuel trim indicates much more gradual feedback compensation to the base fuel schedule than short-term fuel trim.
L - FUEL TRM - B2
S - FUEL TRM - B1	"Short-term fuel trim" at the moment a malfunction is detected is displayed. The short-term fuel trim indicates dynamic or instantaneous feedback compensation to the base fuel schedule.
S - FUEL TRM - B2
ENGINE SPEED [RPM]	The engine speed at the moment a malfunction is detected is displayed.
VEHICL SPEED	The vehicle speed at the moment a malfunction is detected is displayed.
INT MANI PRES [kPa]	These items are displayed but are not applicable to this model.
ABSOL TH - P/S	The throttle valve opening angle at the moment a malfunction is detected is displayed.
INT/A TEMP SE	The intake air temperature at the moment a malfunction is detected is displayed.
COMBUST CONDITION	These items are displayed but are not applicable to this model.
B/FUEL SCHDL [msec]	The base fuel schedule at the moment a malfunction is detected is displayed.

*: The items are the same as those of 1st trip freeze frame data.

DATA MONITOR MODE 

Monitored Item 

Monitored item	Unit	Description	Remarks
COOLAN 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 SEN	°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.
ENG OIL TEMP	°C or °F	The engine oil temperature (determined by the signal voltage of the engine oil temperature sensor) is indicated.
A/F ALPHA - B1	%	• The mean value of the air-fuel ratio feedback correction factor per cycle is indicated.
MAP SENSOR	-	Not used.
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.
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.
EXH/V TIM B1	°CA	Indicates [°CA] of exhaust camshaft retard angle.
FAN DUTY	%	Indicates a command value for cooling fan. The value is calculated by ECM based on input signals.
THRTL STK CNT B1*	-	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.
INJ PULSE-B1	msec	Indicates the actual fuel injection pulse width compensated by ECM according to the input signals.	When the engine is stopped, a certain computed value is indicated.
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".
MASS AIRFLOW	g/s	Indicates the mass air flow computed by ECM according to the signal voltage of the mass air flow sensor.
ACCEL SEN 1	V	The accelerator pedal position sensor signal voltage is displayed.	ACCEL SEN 2 signal is converted by ECM internally. Thus, it 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, it differs from ECM terminal voltage signal.
TP SEN 2-B1
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.
TUMBLE POS SEN	V	The intake manifold runner control valve position sensor signal voltage 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.
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 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.
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.
INT/V TIM (B1)	°CA	Indicates [°CA] of intake camshaft advance angle.
EOP SENSOR	V	The signal voltage of EOP sensor is displayed.
MASS AIR FLOW SENSOR (Hz)	Hz	The signal frequency of the mass air flow sensor is displayed.
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 B1	count	Displays the number of updates of the A/F sensor atmospheric correction factor.
LOAD SIGNAL	ON/OFF	Indicates [ON/OFF] condition of the electrical lode signal. ON: Rear window defogger switch is ON and/or lighting switch is 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 sent from EPS control unit) 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.
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.
DIST SW	ON/OFF	Indicates [ON/OFF] condition from DISTANCE switch signal.
SET SW	ON/OFF	Indicates [ON/OFF] condition from SET - switch signal.
RESUME/ACC SW	ON/OFF	Indicates [ON/OFF] condition from 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.
AIR COND RLY	ON/OFF	The air conditioner relay control condition (determined by ECM according to the input signals) is indicated.
FUEL PUMP RLY	ON/OFF	Indicates the fuel pump relay control condition determined by ECM according to the input signals.
VENT CONT/V	ON/OFF	• The control condition of the EVAP canister vent control valve (determined by ECM according to the input signals) is displayed. - 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.
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 (B1)	INCMP/CMPLT	NOTE: The item is indicated, but not used.
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 B1	INCMP/CMPLT	Indicates DTC P219A 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 A B1	INCMP/CMPLT	Indicates DTC P219A 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
A/F IMBALNC DIAG - CPS STAT	ABSNT/ PRSNT	Indicates DTC P219C - P219F self-diagnosis condition. ABSNT: The vehicle condition is not within the diagnosis range. PRSNT: The vehicle condition is within the diagnosis range.
A/F IMBLNC DIAG - CPS CMPLT	INCMP/CMPLT	Indicates DTC P219C - P219F self-diagnosis condition. INCMP: Self-diagnosis is incomplete. CMPLT: Self-diagnosis is complete.

*: The item is indicated, but not used.

WORK SUPPORT MODE 

Work Item 

WORK ITEM	CONDITION	USAGE
VALVE TIMING OFFSET DATA WRITING	Ignition switch ON and engine stopped.	After the following parts are replaced. ECM Camshaft, timing chain Timing chain Engine assembly
VALVE TIMING OFFSET DATA CLEAR	Ignition switch ON and engine stopped.	After the following parts are replaced. ECM Engine assembly
FUEL PRESSURE RELEASE	Fuel pump will stop by touching "START" during idling. Crank a few times after engine stalls.	When releasing fuel pressure from fuel line
EVAP SYSTEM CLOSE	Close the EVAP canister vent control valve in order to make EVAP system close under the following conditions. Ignition switch ON Engine not running Ambient temperature is above 0°C (32°F) No vacuum and no high pressure in EVAP system Fuel tank temperature is more than 0°C (32°F) Within 10 minutes after starting "EVAP SYSTEM CLOSE" When trying to execute "EVAP SYSTEM CLOSE" under the condition except above, CONSULT will discontinue it and display appropriate instruction. NOTE: When starting engine, CONSULT may display "Battery voltage is low. Charge battery", even in using charged battery.	When detecting EVAP vapor leak point of EVAP system
TARGET IGN TIM ADJ*	Idle condition	When adjusting target ignition timing
TARGET IDLE RPM ADJ*	Idle condition	When setting target idle speed
WRITING DATA FOR REPLC CPU	In this mode, write data stored by "SAVE DATA FOR CPU REPLC" in work support mode to ECM.	When ECM is replaced.
SAVING DATA FOR REPLC CPU	In this mode, save data that is in ECM.	When ECM is replaced.
IDLE AIR VOL LEARN	The idle air volume that keeps the engine within the specified range is memorized in ECM.	When learning the idle air volume
CLSD THL POS LEARN	Ignition on and engine stopped.	When learning throttle valve closed position
SELF-LEARNING CONT	The coefficient of self-learning control mixture ratio returns to the original coefficient.	When clearing mixture ratio self-learning value
VIN REGISTRATION	In this mode, VIN is registered in ECM.	When registering VIN in ECM
ELECTRIC INTAKE VALVE TIMING CONTROL LEARNING	Ignition switch ON and engine stopped.	After the following parts are replaced. Electric intake valve timing control actuator Electric intake valve timing control module Camshaft, timing chain, camshaft sprocket Piston, connecting rod, crankshaft Position sensor

*: This function is not necessary in the usual service procedure.

ACTIVE TEST MODE 

Test Item 

TEST ITEM	CONDITION	JUDGMENT	CHECK ITEM (REMEDY)
ENG COOLANT TEMP	Engine: Return to the original trouble condition Change the engine coolant temperature using CONSULT.	If trouble symptom disappears, see CHECK ITEM.	Harness and connectors Engine coolant temperature sensor Fuel injector
FUEL INJECTION	Engine: Return to the original trouble condition Change the amount of fuel injection using CONSULT.	If trouble symptom disappears, see CHECK ITEM.	Harness and connectors Fuel injector Air fuel ratio (A/F) sensor 1
IGNITION TIMING	Engine: Return to the original trouble condition Timing light: Set Retard the ignition timing using CONSULT.	If trouble symptom disappears, see CHECK ITEM.	Perform Idle Air Volume Learning.
PURG VOL CONT/V	Engine: After warming up, run engine at 1, 500 RPM. Change the EVAP canister purge volume control solenoid valve opening percent using CONSULT.	Engine speed changes according to the opening percent.	Harness and connectors Solenoid valve
FUEL/T TEMP SEN	Change the fuel tank temperature using CONSULT.
POWER BALANCE	Engine: After warming up, idle the engine. A/C switch OFF Shift lever: Neutral Cut off each fuel injector signal one at a time using CONSULT.	Engine runs rough or dies.	Harness and connectors Compression Fuel injector Power transistor Spark plug Ignition coil
INT V/T ASSIGN ANGLE	Engine: Return to the original non-standard condition Change intake valve timing using CONSULT.	If malfunctioning symptom disappears, see CHECK ITEM.	Harness and connectors Intake valve timing control solenoid valve
EXH V/T ASSIGN ANGLE	Engine: Return to the original nonstandard condition Change exhaust valve timing using CONSULT.	If malfunctioning symptom disappears, see CHECK ITEM.	Harness and connectors Exhaust valve timing control solenoid valve
FUEL PUMP RELAY	Ignition switch: ON Turn the fuel pump relay "ON" and "OFF" using CONSULT and listen to operating sound.	Fuel pump relay makes the operating sound.	Harness and connectors Fuel pump relay
VENT CONTROL/V	Ignition switch: ON Turn solenoid valve ON and OFF with the CONSULT and listen to operating sound.	Solenoid valve makes an operating sound.	Harness and connectors EVAP canister vent control solenoid valve
FAN DUTY CONTROL*	Ignition switch: ON Change duty ratio using CONSULT.	Cooling fan speed changes.	Harness and connectors IPDM E/R (Cooling fan relay) Cooling fan motor Cooling fan relay Cooling fan module
TUMBLE CONTROL VALUE	Ignition switch: ON (Engine stopped) Turn the intake manifold runner control valve "ON" and "OFF" using CONSULT to open or close.	Touch the intake manifold runner control valve motor and check the operating vibration and sound.	Harness and connectors Intake manifold runner control valve Intake manifold runner control valve motor

*: Leaving cooling fan OFF with CONSULT while engine is running may cause the engine to overheat.

DTC WORK SUPPORT MODE 

Test Item 

Test mode	Test item	Corresponding DTC No.	Reference
HO2S2	HO2S2 (B1) P1146	P0138	DTC Description
	HO2S2 (B1) P1147	P0137	DTC Description
	HO2S2 (B1) P0139	P0139	DTC Description
A/F SEN1	A/F SEN1 (B1) P1276	P0130	DTC Description
EVAPORATIVE SYSTEM	PURG FLOW P0441	P0441	DTC Description
	PURG VOL CN/V P1444	P0443	DTC Description

SRT and P-DTC MODE 

SRT STATUS Mode 

• For items whose SRT codes are set, "CMPLT" is displayed on the CONSULT screen; for items whose SRT codes are not set, "INCMP" is displayed.
• "SRT STATUS" provides the presence or absence of permanent DTCs stored in ECM memory.

PERMANENT DTC STATUS Mode 

How to display permanent DTC status

1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON.
5. Select "PERMANENT DTC STATUS" in "DTC and SRT CONFIRMATION" mode with CONSULT.
   NOTE: Permanent DTCs stored in ECM memory are displayed on the CONSULT screen to show if a driving pattern required for erasing permanent DTCs is complete (CMPLT) or incomplete (INCMP).
   CAUTION:

   Since the "PERMANENT DTC STATUS" screen displays the previous trip information, repeat the following twice to update the information: "Ignition switch OFF", "Wait for more than 10 seconds" and "Ignition switch ON".

Courtesy of NISSAN NORTH AMERICA, INC.

SRT WORK SUPPORT Mode 

This mode enables a technician to drive a vehicle to set the SRT while monitoring the SRT status.

PERMANENT DTC WORK SUPPORT Mode 

This mode enables a technician to drive a vehicle to complete the driving pattern that is required for erasing permanent DTC.