Infiniti G35 (V35). Manual — part 312
TROUBLE DIAGNOSIS
EC-129
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*: For models with M/T.
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
DATA MONITOR (SPEC) MODE
Monitored Item
AT OD MONITOR
[ON/OFF]
●
Indicates [ON/OFF] condition of A/T O/D
according to the input signal from the TCM.
●
For M/T models always “OFF” is dis-
played.
AT OD CANCEL
[ON/OFF]
●
Indicates [ON/OFF] condition of A/T O/D can-
cel signal sent from the TCM.
●
For M/T models always “OFF” is dis-
played.
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.
EXH V/T LEARN*
[YET/CMPLT]
●
Display the condition of Exhaust Valve Timing
Control Learning
YET: Exhaust Valve Timing Control Learning
has not been performed yet.
CMPLT: Exhaust Valve Timing Control Learn-
ing has already been performed successfully.
A/F ADJ-B1
●
Indicates 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
SIG-
NALS
MAIN
SIG-
NALS
Description
Remarks
ENG SPEED [rpm]
×
×
●
Indicates the engine speed computed
from the signals of the crankshaft posi-
tion 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.
EC-130
TROUBLE DIAGNOSIS
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
ACTIVE TEST MODE
Test Item
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.
POWER BAL-
ANCE
●
Engine: After warming up, idle
the engine.
●
A/C switch OFF
●
Shift lever: P or N (A/T), Neutral
(M/T)
●
Cut off each fuel injector signal
one at a time using CONSULT-II.
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”, “LOW”
and “OFF” using CONSULT-II.
Cooling fan moves and stops.
●
Harness and connectors
●
Cooling fan motor
●
IPDM E/R
ENG COOLANT
TEMP
●
Engine: Return to the original
trouble condition
●
Change the engine coolant tem-
perature using CONSULT-II.
If trouble symptom disappears, see
CHECK ITEM.
●
Harness and connectors
●
Engine coolant temperature sen-
sor
●
Fuel injector
FUEL PUMP
RELAY
●
Ignition switch: ON
(Engine stopped)
●
Turn the fuel pump relay “ON”
and “OFF” using CONSULT-II
and listen to operating sound.
Fuel pump relay makes the operat-
ing sound.
●
Harness and connectors
●
Fuel pump relay
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 CON-
SULT-II.
Engine speed changes according to
the opening percent.
●
Harness and connectors
●
Solenoid valve
FUEL/T TEMP
SEN
●
Change the fuel tank temperature using CONSULT-II.
VENT CON-
TROL/V
●
Ignition switch: ON
(Engine stopped)
●
Turn solenoid valve “ON” and
“OFF” with the CONSULT-II and
listen to operating sound.
Solenoid valve makes an operating
sound.
●
Harness and connectors
●
Solenoid valve
INT V/T ASSIGN
ANGLE
●
Engine: Return to the original
trouble condition
●
Change intake valve timing using
CONSULT-II.
If trouble symptom disappears, see
CHECK ITEM.
●
Harness and connectors
●
Intake valve timing control sole-
noid valve
EXH V/T ASSIGN
ANGLE*
2
●
Engine: Return to the original
trouble condition
●
Change exhaust valve timing
using CONSULT-II.
If trouble symptom disappears, see
CHECK ITEM.
●
Harness and connectors
●
Exhaust valve timing control mag-
net retarder
TROUBLE DIAGNOSIS
EC-131
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*1: Leaving cooling fan “OFF” with CONSULT-II while engine is running may cause the engine to overheat.
*2: For models with M/T.
DTC & SRT CONFIRMATION MODE
SRT STATUS Mode
EC-53, "SYSTEM READINESS TEST (SRT) CODE"
.
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
*: DTC P1442 and P1456 does not apply to V35 models but appears in DTC WORK SUPPORT Mode screens.
Test mode
Test item
Corresponding DTC No.
Reference page
EVAPORATIVE SYS-
TEM
PURG FLOW P0441
P0441
EVP SML LEAK P0442/P1442*
P0442
EVP V/S LEAK P0456/P1456*
P0456
PURG VOL CN/V P1444
P0443
A/F SEN1
A/F SEN1 (B1) P1276
P0130
A/F SEN1 (B1) P1278/P1279
P0133
A/F SEN1 (B2) P1286
P0150
A/F SEN1 (B2) P1288/P1289
P0153
HO2S2
HO2S2 (B1) P0139
P0139
HO2S2 (B1) P1146
P0138
HO2S2 (B1) P1147
P0137
HO2S2 (B2) P0159
P0159
HO2S2 (B2) P1166
P0158
HO2S2 (B2) P1167
P0157
EC-132
TROUBLE DIAGNOSIS
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 malfunc-
tion 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.
PBIB1593E
SEF707X
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