display INFINITI FX35 2007 Service Manual
[x] Cancel search | Manufacturer: INFINITI, Model Year: 2007, Model line: FX35, Model: INFINITI FX35 2007Pages: 4366, PDF Size: 55.42 MB
Page 1471 of 4366
![INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-95
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
Fail-Safe ChartNBS003LZ
When the DTC listed below is detected, the ECM enters fail-safe mode](/img/42/57018/w960_57018-1470.png "INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-95
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
Fail-Safe ChartNBS003LZ
When the DTC listed below is detected, the ECM enters fail-safe mode")
TROUBLE DIAGNOSIS EC-95
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
Fail-Safe ChartNBS003LZ
When the DTC listed below is detected, the ECM enters fail-safe mode and the MIL lights up.
When there is an open circuit on MIL circuit, the ECM cannot warn the driver by MIL lighting up when
there is malfunction on engine control system.
Therefore, when electrical controlled throttle and part of ECM related diagnoses are continuously detected
as NG for 5 trips, ECM warns the driver that engine control system malfunctions and MIL circuit is open by
means of operating fail-safe function.
The fail-safe function also operates when above diagnoses except MIL circuit are detected and demands
the driver to repair the malfunction.
DTC No. Detected items Engine operating condition in fail-safe mode
P0102
P0103 Mass air flow sensor circuit Engine speed will not rise more than 2,400 rpm due to the fuel cut.
P0117
P0118 Engine coolant tempera-
ture sensor circuit Engine coolant temperature will be determined by ECM based on the time after turning
ignition switch ON or START.
CONSULT-II displays the engine coolant temperature decided by ECM.
Condition Engine coolant temperature decided
(CONSULT-II display)
Just as ignition switch is turned
ON or START 40
°C (104 °F)
More than approx. 4 minutes after
ignition ON or START 80
°C (176 °F)
Except as shown above 40 - 80
°C (104 - 176 °F)
(Depends on the time)
When the fail-safe system for engine coolant temperature sensor is activated, the cooling
fan operates while engine is running.
P0122
P0123
P0222
P0223
P2135 Throttle position sensor The ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor.
P0643 Sensor power supply ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P2100
P2103 Throttle control motor relay ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2101 Electric throttle control function ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2118 Throttle control motor ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P2119 Electric throttle control actuator (When electric throttle control actuator does not function properly due to the return spring
malfunction:)
ECM controls the electric throttle actuator by regulating the throttle opening around the
idle position. The engine speed will not rise more than 2,000 rpm.
(When throttle valve opening angle in fail-safe mode is not in specified range:)
ECM controls the electric throttle control actuator by regulating the throttle opening to 20
degrees or less.
(When ECM detects the throttle valve is stuck open:)
While the vehicle is driving, it slows down gradually by fuel cut. After the vehicle stops,
the engine stalls.
The engine can restart in N or P position, and engine speed will not exceed 1,000 rpm or
more.
P2122
P2123
P2127
P2128
P2138 Accelerator pedal position
sensor The ECM controls the electric throttle control actuator in regulating the throttle opening in
order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor.
Engine operating condition in fail-safe mode Engine speed will not rise more than 2,500 rpm due to the fuel cut
Page 1496 of 4366
![INFINITI FX35 2007 Service Manual EC-120
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
X: Applicable
*1: This item includes 1st trip DTCs.
*2: This mode includes 1st trip freeze frame data or freeze frame data. The i](/img/42/57018/w960_57018-1495.png "INFINITI FX35 2007 Service Manual EC-120
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
X: Applicable
*1: This item includes 1st trip DTCs.
*2: This mode includes 1st trip freeze frame data or freeze frame data. The i")
EC-120
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
X: Applicable
*1: This item includes 1st trip DTCs.
*2: This mode includes 1st trip freeze frame data or freeze frame data. The items appear on CONSULT-II screen in freeze frame d ata
mode only if a 1st trip DTC or DTC is detected. For details, refer to EC-121, "
Freeze Frame Data and 1st Trip Freeze Frame Data" .
*3: Always “CMPLT” is displayed.
INSPECTION PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure"
WORK SUPPORT MODE
Work Item
ENGINE CONTROL COMPONENT PARTS
OUTPUT
Fuel injector ×× ×
Power transistor (Ignition timing) ×× ×
Throttle control motor relay ×××
Throttle control motor ×
EVAP canister purge volume con-
trol solenoid valve ×××××
Air conditioner relay ××
Fuel pump relay ××××
Cooling fan relay ××××
Air fuel ratio (A/F) sensor 1 heater ×××
× *
3
Heated oxygen sensor 2 heater ×××
× *3
EVAP canister vent control valve ×× ×××
Intake valve timing control solenoid
valve ××××
Calculated load value ×××
Item
DIAGNOSTIC TEST MODE
WORK SUP-
PORT SELF-DIAGNOSTIC
RESULTS DATA
MONI-
TOR DATA
MONI- TOR
(SPEC) ACTIVE
TEST DTC & SRT
CONFIRMATION
DTC*
1FREEZE
FRAME
DATA*
1
SRT
STATUS DTC
WORK SUP-
PORT
WORK ITEM CONDITION USAGE
FUEL PRESSURE RELEASE
FUEL PUMP WILL STOP BY TOUCHING “START” DUR-
ING IDLING.
CRANK A FEW TIMES AFTER ENGINE STALLS. When releasing fuel pressure
from fuel line
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
SELF-LEARNING CONT
THE COEFFICIENT OF SELF-LEARNING CONTROL
MIXTURE RATIO RETURNS TO THE ORIGINAL COEF-
FICIENT. When clearing the coefficient of
self-learning control value
Page 1497 of 4366
![INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-121
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
*: This function is not necessary in the usual service procedure.
SELF-DIAG RESULTS MODE
S](/img/42/57018/w960_57018-1496.png "INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-121
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
*: This function is not necessary in the usual service procedure.
SELF-DIAG RESULTS MODE
S")
TROUBLE DIAGNOSIS EC-121
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
*: This function is not necessary in the usual service procedure.
SELF-DIAG RESULTS MODE
Self Diagnostic Item
Regarding items of DTC and 1st trip DTC, refer to EC-54, "EMISSION-RELATED DIAGNOSTIC INFORMA-
TION ITEMS" .
Freeze Frame Data and 1st Trip Freeze Frame Data
EVAP SYSTEM CLOSE CLOSE THE EVAP CANISTER VENT CONTROL VALVE IN
ORDER TO MAKE EVAP SYSTEM CLOSE UNDER THE
FOLLOWING CONDITIONS.
IGN SW ON
ENGINE NOT RUNNING
AMBIENT TEMPERATURE IS ABOVE 0 °C (32 °F).
NO VACUUM AND NO HIGH PRESSURE IN EVAP SYS-
TEM
FUEL TANK TEMP. IS MORE THAN 0 °C (32 °F).
WITHIN 10 MINUTES AFTER STARTING “EVAP SYS-
TEM CLOSE”
WHEN TRYING TO EXECUTE “EVAP SYSTEM CLOSE”
UNDER THE CONDITION EXCEPT ABOVE, CONSULT-
II WILL DISCONTINUE IT AND DISPLAY APPROPRI-
ATE INSTRUCTION.
NOTE:
WHEN STARTING ENGINE, CONSULT-II MAY DISPLAY
“BATTERY VOLTAGE IS LOW. CHARGE BATTERY”,
EVEN IN USING CHARGED BATTERY. When detecting EVAP vapor leak
point of EVAP system
VIN REGISTRATION
IN THIS MODE VIN IS REGISTERED IN ECM When registering VIN is ECM
TARGET IDLE RPM ADJ*
IDLE CONDITION When setting target idle speed
TARGET IGN TIM ADJ*
IDLE CONDITION When adjusting target ignition tim- ing
WORK ITEM CONDITION USAGE
Freeze frame data
item* Description
DIAG TROUBLE
CODE
[PXXXX]
The engine control component part/control system has a trouble code, it is displayed as “PXXXX”. (Refer
to EC-15, "
INDEX FOR DTC" .)
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
[ ° C] or [ °F]
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.
Page 1498 of 4366
![INFINITI FX35 2007 Service Manual EC-122
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
*: The items are the same as those of 1st trip freeze frame data.
DATA MONITOR MODE
Monitored Item
× : Applicable
VEHICL SPEED](/img/42/57018/w960_57018-1497.png "INFINITI FX35 2007 Service Manual EC-122
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
*: The items are the same as those of 1st trip freeze frame data.
DATA MONITOR MODE
Monitored Item
× : Applicable
VEHICL SPEED")
EC-122
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
*: The items are the same as those of 1st trip freeze frame data.
DATA MONITOR MODE
Monitored Item
× : Applicable
VEHICL SPEED
[km/h] or [mph]
The vehicle speed at the moment a malfunction is detected is displayed.
ABSOL TH-P/S [%]
The throttle operating angle at the moment a malfunction is detected is displayed.
B/FUEL SCHDL
[msec]
The base fuel schedule at the moment a malfunction is detected is displayed.
INT/A TEMP SE
[ ° C] or [ °F]
The intake air temperature at the moment a malfunction is detected is displayed.
Freeze frame data
item* Description
Monitored item
[Unit] ECM
INPUT SIG-
NALS MAIN
SIG-
NALS Description Remarks
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.
MAS A/F SE-B1 [V] ××
The signal voltage of the mass air flow sensor
is displayed.When the engine is stopped, a cer-
tain value is indicated.
B/FUEL SCHDL
[msec] ×
Base fuel schedule indicates the fuel injection
pulse width programmed into ECM, prior to
any learned on board correction.
A/F ALPHA-B1 [%] ×
The mean value of the air-fuel ratio feedback
correction factor per cycle is indicated.
When the engine is stopped, a cer-
tain value is indicated.
This data also includes the data for
the air-fuel ratio learning control.
A/F ALPHA-B2 [%]
×
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 tempera-
ture sensor is open or short-cir-
cuited, ECM enters fail-safe mode.
The engine coolant temperature
determined by the ECM 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.
A/F SEN1 (B2) [V] ×
HO2S2 (B1) [V] ×
The signal voltage of the heated oxygen sen-
sor 2 is displayed.
HO2S2 (B2) [V] ×
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 cer-
tain value is indicated.
HO2S2 MNTR(B2)
[RICH/LEAN] ×
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 dis-
played.
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 [V]
×
Page 1499 of 4366
![INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-123
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45THRTL SEN 1 [V]××The throttle position sensor signal voltage is
displayed.THRTL SEN 2](/img/42/57018/w960_57018-1498.png "INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-123
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45THRTL SEN 1 [V]××The throttle position sensor signal voltage is
displayed.THRTL SEN 2")
TROUBLE DIAGNOSIS EC-123
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45THRTL SEN 1 [V]××The throttle position sensor signal voltage is
displayed.THRTL SEN 2 signal is converted by
ECM internally. Thus, it differs from
ECM terminal voltage signal.
THRTL SEN 2 [V]
×
FUEL T/TMP SE
[ ° C] or [ °F] ×
The fuel temperature (determined by the sig-
nal voltage of the fuel tank temperature sen-
sor) is displayed.
INT/A TEMP SE
[ ° C] or [ °F] ××
The intake air temperature (determined by the
signal voltage of the intake air temperature
sensor) is indicated.
EVAP SYS PRES
[V] ×
The signal voltage of EVAP control system
pressure sensor is displayed.
FUEL LEVEL SE
[V] ×
The signal voltage of the fuel level sensor is
displayed.
START SIGNAL
[ON/OFF] ××
Indicates start signal status [ON/OFF] com-
puted 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 posi-
tion sensor signal.
AIR COND SIG
[ON/OFF] ××
Indicates [ON/OFF] condition of the air condi-
tioner switch as determined by the air condi-
tioner signal.
P/N POSI SW
[ON/OFF] ××
Indicates [ON/OFF] condition from the park/
neutral position (PNP) switch signal.
PW/ST SIGNAL
[ON/OFF] ××
[ON/OFF] condition of the power steering sys-
tem (determined by the signal voltage of the
power steering pressure sensor) is indicated.
LOAD SIGNAL
[ON/OFF] ××
Indicates [ON/OFF] condition from the electri-
cal load signal.
ON: Rear window defogger switch is ON and/
or lighting switch is in 2nd position.
OFF: Both rear window defogger switch and
lighting switch are OFF.
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.
BRAKE SW
[ON/OFF] ×
Indicates [ON/OFF] condition from the stop
lamp switch signal.
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 cer-
tain computed value is indicated.
INJ PULSE-B2
[msec]
IGN TIMING
[BTDC] ×
Indicates the ignition timing computed by
ECM according to the input signals.When the engine is stopped, a cer-
tain 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
according to the signal voltage of the mass air
flow sensor.
Monitored item
[Unit] ECM
INPUT SIG-
NALS MAIN
SIG-
NALS Description Remarks
Page 1500 of 4366
![INFINITI FX35 2007 Service Manual EC-124
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
PURG VOL C/V
[%]
Indicates the EVAP canister purge volume
control solenoid valve control value computed
by the ECM according](/img/42/57018/w960_57018-1499.png "INFINITI FX35 2007 Service Manual EC-124
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
PURG VOL C/V
[%]
Indicates the EVAP canister purge volume
control solenoid valve control value computed
by the ECM according")
EC-124
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
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.
INT/V TIM(B1)
[ ° CA]
Indicates [ °CA] of intake camshaft advanced
angle.
INT/V TIM(B2)
[ ° CA]
INT/V SOL(B1) [%]
The control condition of the intake valve tim-
ing control solenoid valve (determined by
ECM according to the input signals) is indi-
cated.
The advance angle becomes larger as the
value increases.
INT/V SOL(B2) [%]
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 indicated.
ON: Closed
OFF: Open
THRTL RELAY
[ON/OFF] ×
Indicates the throttle control motor relay con-
trol condition determined by the ECM accord-
ing 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
HO2S2 HTR (B1)
[ON/OFF]
Indicates [ON/OFF] condition of heated oxy-
gen sensor 2 heater determined by ECM
according to the input signals.
HO2S2 HTR (B2)
[ON/OFF]
I/P PULLY SPD
[rpm]
Indicates the engine speed computed from
the turbine revolution sensor signal.
VEHICLE SPEED
[km/h] or [mph]
Indicates the vehicle speed computed from
the revolution sensor signal.
IDL A/V LEARN
[YET/CMPLT]
Display the condition of idle air volume learn-
ing
YET: Idle Air Volume Learning has not been
performed yet.
CMPLT: Idle Air Volume Learning has already
been performed successfully.
TRVL AFTER MIL
[km] or [mile]
Distance traveled while MIL is activated.
Monitored item
[Unit] ECM
INPUT SIG-
NALS MAIN
SIG-
NALS Description Remarks
Page 1501 of 4366
![INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-125
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45SNOW MODE SW
[ON/OFF]Indicates [ON/OFF] condition from the snow
mode switch signal.
A/](/img/42/57018/w960_57018-1500.png "INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-125
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45SNOW MODE SW
[ON/OFF]Indicates [ON/OFF] condition from the snow
mode switch signal.
A/")
TROUBLE DIAGNOSIS EC-125
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45SNOW MODE SW
[ON/OFF]Indicates [ON/OFF] condition from the snow
mode switch signal.
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 pres-
sure sensor is displayed.
VHCL SPEED SE
[km/h] or [mph]
The vehicle speed computed from the vehicle
speed signal sent from TCM is displayed.
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/
ACCELERATE 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.
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 increased to excessively
high 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 compared with the ASCD set speed, and
ASCD operation is cut off.
AT OD MONITOR
[ON/OFF]
Indicates [ON/OFF] condition of A/T O/D
according to the input signal from the TCM.
AT OD CANCEL
[ON/OFF]
Indicates [ON/OFF] condition of A/T O/D can-
cel signal sent from the TCM.
DIST SW
[ON/OFF]
Indicates [ON/OFF] condition from DIS-
TANCE switch signal.
CRUISE LAMP
[ON/OFF]
Indicates [ON/OFF] condition of CRUISE
lamp determined by the ECM according to the
input signals.
SET LAMP
[ON/OFF]
Indicates [ON/OFF] condition of SET lamp
determined by the ECM according to the input
signals.
Monitored item
[Unit] ECM
INPUT SIG-
NALS MAIN
SIG-
NALS Description Remarks
Page 1502 of 4366
![INFINITI FX35 2007 Service Manual EC-126
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
DATA MONITOR (](/img/42/57018/w960_57018-1501.png "INFINITI FX35 2007 Service Manual EC-126
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
DATA MONITOR (")
EC-126
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
DATA MONITOR (SPEC) MODE
Monitored Item
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
ACTIVE TEST MODE
Test Item
A/F ADJ-B1Indicates the correction of factor stored in
ECM. The factor is calculated from the differ-
ence between the target air-fuel ratio stored in
ECM and the air-fuel ratio calculated from A/F
sensor 1 signal.
A/F ADJ-B2
Voltage [V]
Voltage, frequency, duty cycle or pulse width
measured by the probe.
Only # is displayed if item is unable
to be measured.
Figures with #s are temporary ones.
They are the same figures as an
actual piece of data which was just
previously measured.
Frequency [msec],
[Hz] or [%]
DUTY-HI
DUTY-LOW
PLS WIDTH-HI
PLS WIDTH-LOW Monitored item
[Unit] ECM
INPUT SIG-
NALS MAIN
SIG-
NALS Description Remarks
Monitored item [Unit]ECM
input
signals Main
signals Description Remarks
ENG SPEED [rpm] ××
Indicates the engine speed computed
from the signal of the crankshaft position
sensor (POS) and camshaft position
sensor (PHASE).
MAS A/F SE-B1 [V] ××
The signal voltage of the mass air flow
sensor specification is displayed.When engine is running specification
range is indicated.
B/FUEL SCHDL
[msec] ×
Base fuel schedule indicates the fuel
injection pulse width programmed into
ECM, prior to any learned on board cor-
rection.
When engine is running specification
range is indicated.
A/F ALPHA-B1 [%]
A/F ALPHA-B2 [%] ×
The mean value of the air-fuel ratio feed-
back correction factor per cycle is indi-
cated.When engine is running specification
range is indicated.
This data also includes the data for the
air-fuel ratio learning control.
TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY)
FUEL INJEC-
TION
Engine: Return to the original
trouble condition
Change the amount of fuel injec-
tion using CONSULT-II. If trouble symptom disappears, see
CHECK ITEM.
Harness and connectors
Fuel injector
Air fuel ratio (A/F) sensor 1
IGNITION TIM-
ING
Engine: Return to the original
trouble condition
Timing light: Set
Retard the ignition timing using
CONSULT-II. If trouble symptom disappears, see
CHECK ITEM.
Perform Idle Air Volume Learning.
Page 1504 of 4366
![INFINITI FX35 2007 Service Manual EC-128
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
*: DTC P1442 and P1456 does not apply to S50 models but appears in DTC Work Support Mode screens.
REAL TIME DIAGNOSIS IN DATA MONIT](/img/42/57018/w960_57018-1503.png "INFINITI FX35 2007 Service Manual EC-128
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
*: DTC P1442 and P1456 does not apply to S50 models but appears in DTC Work Support Mode screens.
REAL TIME DIAGNOSIS IN DATA MONIT")
EC-128
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 July 2007 FX35/FX45
*: DTC P1442 and P1456 does not apply to S50 models but appears in DTC Work Support Mode screens.
REAL TIME DIAGNOSIS IN DATA MONITOR MODE (RECORDING VEHICLE DATA)
Description
CONSULT-II has two kinds of triggers and they can be selected by touching “SETTING” in “DATA MONITOR”
mode.
1. “AUTO TRIG” (Automatic trigger):
The malfunction will be identified on the CONSULT-II screen
in real time.
In other words, DTC/1st trip DTC and malfunction item will be
displayed if the malfunction is detected by ECM.
At the moment a malfunction is detected by ECM, “MONI-
TOR” in “DATA MONITOR” screen is changed to “Recording
Data ... xx%” as shown at right, and the data after the mal-
function detection is recorded. Then when the percentage
reached 100%, “REAL-TIME DIAG” screen is displayed. If
“STOP” is touched on the screen during “Recording Data ...
xx%”, “REAL-TIME DIAG” screen is also displayed.
The recording time after the malfunction detection and the
recording speed can be changed by “TRIGGER POINT” and
“Recording Speed”. Refer to CONSULT-II Operation Manual.
2. “MANU TRIG” (Manual trigger):
DTC/1st trip DTC and malfunction item will not be displayed
automatically on CONSULT-II screen even though a malfunc-
tion is detected by ECM.
DATA MONITOR can be performed continuously even though
a malfunction is detected.
Operation
1. “AUTO TRIG”
While trying to detect the DTC/1st trip DTC by performing the DTC Confirmation Procedure, be sure to
select to “DATA MONITOR (AUTO TRIG)” mode. You can confirm the malfunction at the moment it is
detected.
While narrowing down the possible causes, CONSULT-II should be set in “DATA MONITOR (AUTO
TRIG)” mode, especially in case the incident is intermittent.
When you are inspecting the circuit by gently shaking (or twisting) the suspicious connectors, compo-
nents and harness in the DTC Confirmation Procedure, the moment a malfunction is found the DTC/1st
trip DTC will be displayed. (Refer to “INCIDENT SIMULATION TESTS” in GI-28, "
How to Perform Effi-
cient Diagnosis for an Electrical Incident" .)
2. “MANU TRIG”
A/F SEN1 A/F SEN1 (B1) P1276 P0130
EC-229A/F SEN1 (B1) P1278/1279 P0133EC-257
A/F SEN1 (B2) P1286 P0150EC-229
A/F SEN1 (B2) P1288/1289 P0153EC-257
HO2S2 HO2S2 (B1) P0139 P0139
EC-293
HO2S2 (B1) P1146 P0138EC-280
HO2S2 (B1) P1147 P0137EC-269
HO2S2 (B2) P0159 P0159EC-293
HO2S2 (B2) P1166 P0158EC-280
HO2S2 (B2) P1167 P0157EC-269
Test mode Test item Corresponding DTC No. Reference page
PBIB1593E
SEF707X
Page 1505 of 4366
![INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-129
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
If the malfunction is displayed as soon as “DATA MONITOR” is selected, reset CONSULT-I](/img/42/57018/w960_57018-1504.png "INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-129
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
If the malfunction is displayed as soon as “DATA MONITOR” is selected, reset CONSULT-I")
TROUBLE DIAGNOSIS EC-129
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 July 2007 FX35/FX45
If the malfunction is displayed as soon as “DATA MONITOR” is selected, reset CONSULT-II to “MANU
TRIG”. By selecting “MANU TRIG” you can monitor and store the data. The data can be utilized for fur-
ther diagnosis, such as a comparison with the value for the normal operating condition.
Generic Scan Tool (GST) FunctionNBS003M7
DESCRIPTION
Generic Scan Tool (OBDII scan tool) complying with SAE J1978 has
8 different functions explained below.
ISO9141 is used as the protocol.
The name GST or Generic Scan Tool is used in this service manual.
FUNCTION
PBIB0197E
SEF139P
Diagnostic test mode Function
Service $01 READINESS TESTS This diagnostic service gains access to current emission-related data values, including
analog inputs and outputs, digital inputs and outputs, and system status information.
Service $02 (FREEZE DATA) This diagnostic service gains access to emission-related data value which were stored by
ECM during the freeze frame. For details, refer to EC-59, "
FREEZE FRAME DATA AND
1ST TRIP FREEZE FRAME DATA" .
Service $03 DTCs This diagnostic service gains access to emission-related power train trouble codes which
were stored by ECM.