Nissan Teana J32. Manual - part 395

EC-118

< FUNCTION DIAGNOSIS >

[VQ25DE, VQ35DE]

ON BOARD DIAGNOSTIC (OBD) SYSTEM

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.

CAL/LD VALUE

%

• “Calculated load value” indicates the value of the 

current air flow divided by peak air flow.

MASS AIRFLOW

g·m/s

• Indicates the mass air flow computed by ECM ac-

cording to the signal voltage of the mass air flow 
sensor.

PURG VOL C/V

%

• Indicates the EVAP canister purge volume con-

trol solenoid valve control value computed by the 
ECM according to the input signals.

• The opening becomes larger as the value in-

creases.

INT/V TIM (B1)

°

CA

• Indicates [

°

CA] of intake camshaft advance an-

gle. 

INT/V TIM (B2)

INT/V SOL-B1

%

• The control value of the intake valve timing con-

trol solenoid valve (determined by ECM accord-
ing to the input signals) is indicated.

• The advance angle becomes larger as the value 

increases.

INT/V SOL-B2

VIAS S/V-1

ON/OFF

• The control condition of the VIAS control solenoid 

valve 1 (determined by ECM according to the in-
put signals) is indicated.
ON: VIAS control solenoid valve 1 is operating.
OFF: VIAS control solenoid valve 1 is not operat-
ing.

VIAS S/V-2

ON/OFF

• The control condition of the VIAS control solenoid 

valve 2 (determined by ECM according to the in-
put signals) is indicated.
ON: VIAS control solenoid valve 2 is operating.
OFF: VIAS control solenoid valve 2 is not operat-
ing.

AIR COND RLY

ON/OFF

• The air conditioner relay control condition (deter-

mined by ECM according to the input signals) is 
indicated.

ENGINE MOUNT

IDLE/TRVL

• The control condition of the electronic controlled 

engine mount (determined by ECM according to 
the input signals) is indicated.
IDLE: Engine speed is below 950 rpm
TRVL: Engine speed is above 950 rpm

FUEL PUMP RLY

ON/OFF

• Indicates the fuel pump relay control condition 

determined by ECM according to the input sig-
nals.

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.

COOLING FAN

HI/MID/LOW/

OFF

• The control condition of the cooling fan (deter-

mined by ECM according to the input signals) is 
indicated.
HI: High speed operation
MID: Middle speed operation
LOW: Low speed operation
OFF: Stop

Monitored item

Unit

Description

Remarks

ON BOARD DIAGNOSTIC (OBD) SYSTEM

EC-119

< FUNCTION DIAGNOSIS >

[VQ25DE, VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

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)

I/P PULLY SPD

rpm

• Indicates the engine speed computed from the 

turbine revolution 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 per-
formed yet.
CMPLT: Idle Air Volume Learning has already 
been performed successfully.

ENG OIL TEMP

°

C or 

°

F

• The engine oil temperature (determined by the 

signal voltage of the engine oil temperature sen-
sor) is displayed.

TRVL AFTER MIL

km or mile

• Distance traveled while MI is activated.

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)

AC PRESS SEN

V

• The signal voltage from the refrigerant pressure 

sensor is displayed.

VHCL SPEED SE

km/h or mph

• The vehicle speed computed from the vehicle 

speed signal sent from combination meter is dis-
played.

SET VHCL SPD

km/h or mph

• The preset vehicle speed 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 RESUME/AC-

CELERATE switch signal.

SET SW

ON/OFF

• Indicates [ON/OFF] condition from SET/COAST 

switch signal.

BRAKE SW1

ON/OFF

• Indicates [ON/OFF] condition from ASCD brake 

switch signal or ASCD clutch switch.

BRAKE SW2

ON/OFF

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

signal.

VHCL SPD 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.

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, and ASCD operation is cut off.

AT OD MONITOR

ON/OFF

• Indicates [ON/OFF] condition of CVT O/D ac-

cording to the input signal from the TCM.

AT OD CANCEL

ON/OFF

• Indicates [ON/OFF] condition of CVT O/D cancel 

request signal.

CRUISE LAMP

ON/OFF

• Indicates [ON/OFF] condition of CRUISE lamp 

determined by the ECM according to the input 
signals.

Monitored item

Unit

Description

Remarks

EC-120

< FUNCTION DIAGNOSIS >

[VQ25DE, VQ35DE]

ON BOARD DIAGNOSTIC (OBD) SYSTEM

*: This item is not used on this vehicle.

NOTE:

Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.

ACTIVE TEST MODE

Test Item

SET LAMP

ON/OFF

• Indicates [ON/OFF] condition of SET lamp deter-

mined by the ECM according to the input signals.

BAT CUR SEN

mV

• The signal voltage of battery current sensor is 

displayed.

ALT DUTY SIG

ON/OFF

• The control condition of the power generation 

voltage variable control (determined by ECM ac-
cording to the input signals) is indicated.
ON: Power generation voltage variable control is 
active.
OFF: Power generation voltage variable control 
is inactive.

A/F ADJ-B1

—

• Indicates the correction of factor stored in ECM. 

The factor is calculated from the difference be-
tween the target air-fuel ratio stored in ECM and 
the air-fuel ratio calculated from A/F sensor 1 sig-
nal.

A/F ADJ-B2

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.

Monitored item

Unit

Description

Remarks

TEST ITEM

CONDITION

JUDGMENT

CHECK ITEM (REMEDY)

FUEL INJEC-
TION

• Engine: Return to the original 

non-standard condition

• Change the amount of fuel injec-

tion using CONSULT-III.

If malfunctioning symptom disap-
pears, see CHECK ITEM.

• Harness and connectors
• Fuel injector
• Air fuel ratio (A/F) sensor 1

IGNITION TIM-
ING

• Engine: Return to the original 

non-standard condition

• Timing light: Set
• Retard the ignition timing using 

CONSULT-III.

If malfunctioning symptom disap-
pears, see CHECK ITEM.

• Perform Idle Air Volume Learning.

POWER BAL-
ANCE

• Engine: After warming up, idle the 

engine.

• A/C switch OFF
• Selector lever: P or N
• Cut off each injector signal one at 

a time using CONSULT-III.

Engine runs rough or dies.

• Harness and connectors
• Compression
• Fuel injector
• Power transistor
• Spark  plug
• Ignition coil

COOLING FAN*

1

• Ignition  switch:  ON
• Turn the cooling fan “HI”, “MID”, 

“LOW” and “OFF” using CON-
SULT-III.

Cooling fan moves and stops.

• Harness and connectors
• Cooling fan motor
• IPDM E/R

ENG COOLANT 
TEMP

• Engine: Return to the original 

non-standard condition

• Change the engine coolant tem-

perature using CONSULT-III.

If malfunctioning symptom disap-
pears, see CHECK ITEM.

• Harness and connectors
• Engine coolant temperature sen-

sor

• Fuel injector

FUEL PUMP RE-
LAY

• Ignition switch: ON (Engine 

stopped)

• Turn the fuel pump relay “ON” 

and “OFF” using CONSULT-III 
and listen to operating sound.

Fuel pump relay makes the operat-
ing sound.

• Harness and connectors
• Fuel  pump  relay

ON BOARD DIAGNOSTIC (OBD) SYSTEM

EC-121

< FUNCTION DIAGNOSIS >

[VQ25DE, VQ35DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

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

*2: This item is not used on this vehicle.

DTC & SRT CONFIRMATION MODE

SRT STATUS Mode

For details, refer to 

EC-102, "Diagnosis Description"

.

SRT WORK SUPPORT Mode

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

DTC WORK SUPPORT Mode

VIAS S/V-1

• Ignition switch: ON
• Turn solenoid valve “ON” and 

“OFF” using CONSULT-III and lis-
ten to operating sound.

Solenoid valve makes the operating 
sound.

• Harness and connectors
• Solenoid valve

VIAS S/V-2

• Ignition switch: ON
• Turn solenoid valve “ON” and 

“OFF” using CONSULT-III and lis-
ten to operating sound.

Solenoid valve makes the operating 
sound.

• Harness and connectors
• Solenoid valve

ENGINE 
MOUNTING

• Ignition switch: ON
• Turn electronic controlled engine 

mount “IDLE” and “TRVL” with 
CONSULT-III.

Electronic controlled engine mount 
makes the operating sound.

• Harness and connectors
• Electronic controlled engine mount

PURG VOL 
CONT/V

• Engine: After warming up, run en-

gine at 1,500 rpm.

• Change the EVAP canister purge 

volume control solenoid valve 
opening percent using CON-
SULT-III.

Engine speed changes according to 
the opening percent.

• Harness and connectors
• Solenoid valve

VENT CON-

TROL/V*

2

• Ignition switch: ON (Engine 

stopped)

• Turn solenoid valve “ON” and 

“OFF” with the CONSULT-III and 
listen to operating sound.

Solenoid valve makes an operating 
sound.

• Harness and connectors
• Solenoid valve

V/T ASSIGN AN-
GLE

• Engine: Return to the original 

trouble condition

• Change intake valve timing using 

CONSULT-III.

If trouble symptom disappears, see 
CHECK ITEM.

• Harness and connectors
• Intake valve timing control sole-

noid valve

ALTERNATOR 
DUTY

• Engine: Idle
• Change duty ratio using CON-

SULT-III.

Battery voltage changes.

• Harness and connectors
• IPDM  E/R
• Alternator

TEST ITEM

CONDITION

JUDGMENT

CHECK ITEM (REMEDY)

Test mode

Test item

Corresponding DTC No.

Reference page

A/F SEN1

A/F SEN1(B1) P1278/P1279

P0133

EC-173

A/F SEN1(B1) P1276

P0130

EC-163

A/F SEN1(B2) P1288/P1289

P0153

EC-173

A/F SEN1(B2) P1286

P0150

EC-163

HO2S2

HO2S2(B1) P1146

P0138

EC-184

HO2S2(B1) P1147

P0137

EC-178

HO2S2(B1) P0139

P0139

EC-192

HO2S2(B2) P1166

P0158

EC-184

HO2S2(B2) P1167

P0157

EC-178

HO2S2(B2) P0159

P0159

EC-192