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Page 1646 of 4647

INFINITI M35 2007 Factory Service Manual TROUBLE DIAGNOSIS
EC-117
[VQ35DE]
C
D
E
F
G
H
I
J
K
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MA
EC
Revision: 2007 April2007 M35/M45
21
22
23
40
41
42W
R/Y
R/B
V/R
P/L
R/WFuel injector No. 5
Fuel injector No. 3
Fuel injector No. 1
Fuel inje

Page 1647 of 4647

INFINITI M35 2007 Factory Service Manual EC-118
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
33 LGCamshaft position sensor
(PHASE) (bank 1)[Engine is running]
Warm-up condition
Idle speed
NOTE:
The pulse cycle changes depen

Page 1649 of 4647

INFINITI M35 2007 Factory Service Manual EC-120
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
69 R Throttle position sensor 2[Ignition switch: ON]
Engine stopped
Selector lever: D
Accelerator pedal: Fully releasedLess than 4

Page 1650 of 4647

INFINITI M35 2007 Factory Service Manual TROUBLE DIAGNOSIS
EC-121
[VQ35DE]
C
D
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EC
Revision: 2007 April2007 M35/M45
98 RAccelerator pedal position
sensor 2[Ignition switch: ON]
Engine stopped
Accelerator pedal: Fully rel

Page 1651 of 4647

INFINITI M35 2007 Factory Service Manual EC-122
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
*: Before measuring the terminal voltage,

Page 1653 of 4647

INFINITI M35 2007 Factory Service Manual EC-124
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
ItemDIAGNOSTIC TEST MODE
WORK
SUP-
PORTSELF-DIAGNOS-
TIC RESULTS
DATA
MO

Page 1655 of 4647

INFINITI M35 2007 Factory Service Manual EC-126
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
*: This function is not necessary in the usual service procedure.
SELF-DIAG RESULTS MODE
Self Diagnostic Item
Regarding items of DTC

EC-126
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
*: 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-55, "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 in 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-55, "
EMISSION-RELATED DIAGNOSTIC INFORMATION ITEMS" .)
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 1656 of 4647

INFINITI M35 2007 Factory Service Manual TROUBLE DIAGNOSIS
EC-127
[VQ35DE]
C
D
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MA
EC
Revision: 2007 April2007 M35/M45
*: The items are the same as those of 1st trip freeze frame data.
DATA MONITOR MODE
Monitored Item
×: Appl

TROUBLE DIAGNOSIS
EC-127
[VQ35DE]
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Revision: 2007 April2007 M35/M45
*: 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 valve opening 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-
NALSMAIN
SIG-
NALSDescription Remarks
ENG SPEED [rpm]××
Indicates the engine speed computed
from the signal of the crankshaft position
sensor (POS) and camshaft position sen-
sor (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 certain
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 cor-
rection.
A/F ALPHA-B1 [%]×
The mean value of the air-fuel ratio feed-
back correction factor per cycle is indi-
cated.When the engine is stopped, a certain
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 (deter-
mined 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.
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
sensor 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 certain
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 combina-
tion 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 SENS 2 signal is converted be
ECM internally. Thus, they differs from
ECM terminal voltage signal. ACCEL SEN 2 [V]×

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