Infiniti I30 (A33). Manual — part 196
DATA MONITOR (SPEC) MODE
NHEC0034S11
Monitored item [Unit]
ECM
input
signals
Main
signals
Description
Remarks
ENG SPEED [rpm]
q
q
I
Indicates the engine speed computed
from the REF signal (180° signal) of the
camshaft position sensor (PHASE).
MAS A/F SE-B1 [V]
q
q
I
The signal voltage of the mass air flow
sensor specification is displayed.
I
When engine is running specification
range is indicated.
B/FUEL SCHDL
[msec]
q
I
“Base fuel schedule” indicates the fuel
injection pulse width programmed into
ECM, prior to any learned on board
correction.
I
When engine is running specification
range is indicated.
A/F ALPHA-B1 [%]
A/F ALPHA-B2 [%]
q
I
The mean value of the air-fuel ratio
feedback correction factor per cycle is
indicated.
I
When engine is running specification
range is indicated.
I
This data also includes the data for the
air-fuel ratio learning control.
ACTIVE TEST MODE
NHEC0034S07
TEST ITEM
CONDITION
JUDGEMENT
CHECK ITEM (REMEDY)
FUEL INJECTION
I
Engine: Return to the original
trouble condition
I
Change the amount of fuel injec-
tion using CONSULT-II.
If trouble symptom disappears, see
CHECK ITEM.
I
Harness and connector
I
Fuel injectors
I
Front heated oxygen sensor
IACV-AAC/V
OPENING
I
Engine: After warming up, idle
the engine.
I
Change the IACV-AAC valve
opening percent using CON-
SULT-II.
Engine speed changes according
to the opening percent.
I
Harness and connector
I
IACV-AAC valve
ENG COOLANT
TEMP
I
Engine: Return to the original
trouble condition
I
Change the engine coolant tem-
perature using CONSULT-II.
If trouble symptom disappears, see
CHECK ITEM.
I
Harness and connector
I
Engine coolant temperature sen-
sor
I
Fuel injectors
IGNITION TIMING
I
Engine: Return to the original
trouble condition
I
Timing light: Set
I
Retard the ignition timing using
CONSULT-II.
If trouble symptom disappears, see
CHECK ITEM.
I
Adjust initial ignition timing
POWER BAL-
ANCE
I
Engine: After warming up, idle
the engine.
I
A/C switch “OFF”
I
Shift lever “N”
I
Cut off each injector signal one
at a time using CONSULT-II.
Engine runs rough or dies.
I
Harness and connector
I
Compression
I
Injectors
I
Power transistor
I
Spark plugs
I
Ignition coils
COOLING FAN
I
Ignition switch: ON
I
Turn the cooling fan “ON” and
“OFF” using CONSULT-II.
Cooling fan moves and stops.
I
Harness and connector
I
Cooling fan motor
I
Cooling fan relay
FUEL PUMP
RELAY
I
Ignition switch: ON
(Engine stopped)
I
Turn the fuel pump relay “ON”
and “OFF” using CONSULT-II
and listen to operating sound.
Fuel pump relay makes the operat-
ing sound.
I
Harness and connector
I
Fuel pump relay
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont’d)
EC-99
TEST ITEM
CONDITION
JUDGEMENT
CHECK ITEM (REMEDY)
PURG VOL
CONT/V
I
Engine: After warming up, run
engine at 1,500 rpm.
I
Change the EVAP canister purge
volume control solenoid valve
opening percent using CON-
SULT-II.
Engine speed changes according
to the opening percent.
I
Harness and connector
I
Solenoid valve
VENT
CONTROL/V
I
Ignition switch: ON
(Engine stopped)
I
Turn solenoid valve “ON” and
“OFF” with the CONSULT-II and
listen to operating sound.
Solenoid valve makes an operating
sound.
I
Harness and connector
I
Solenoid valve
VC/V BYPASS/V
I
Ignition switch: ON
(Engine stopped)
I
Turn solenoid valve “ON” and
“OFF” with the CONSULT-II and
listen to operating sound.
Solenoid valve makes an operating
sound.
I
Harness and connector
I
Solenoid valve
SWIRL CONT
SOL VALVE
I
Ignition switch: ON
I
Turn solenoid valve “ON” and
“OFF” with CONSULT-II and lis-
ten for operating sound.
Solenoid valve makes an operating
sound.
I
Harness and connector
I
Solenoid valve
VIAS SOL VALVE
I
Ignition switch: ON
I
Turn solenoid valve “ON” and
“OFF” with CONSULT-II and lis-
ten for operating sound.
Solenoid valve makes an operating
sound.
I
Harness and connector
I
Solenoid valve
ENGINE MOUNT-
ING
I
Engine: After warming up, run
engine at idle speed.
I
Gear position: “D”’ range
(Vehicle stopped)
I
Turn electronic controlled engine
mount “IDLE” and “RAVEL” with
the CONSULT-II.
Body vibration changes according
to the electronic controlled engine
mount condition.
I
Harness and connector
I
Electronic controlled engine
mount
DTC & SRT CONFIRMATION MODE
NHEC0034S08
SRT STATUS Mode
NHEC0034S0801
For details, refer to “SYSTEM READINESS TEST (SRT) CODE”,
EC-70.
SRT Work Support Mode
NHEC0034S0803
This mode enables a technician to drive a vehicle to set the SRT
while monitoring the SRT status.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont’d)
EC-100
DTC Work Support Mode
NHEC0034S0802
Test mode
Test item
Condition
Reference page
EVAP SYSTEM
EVAP SML LEAK P0440/P1440
Refer to corresponding
trouble diagnosis for
DTC.
PURG VOL CN/V P1444
PURGE FLOW P1447
VC CUT/V BP/V P1491
HO2S1
HO2S1 (B1) P0130
HO2S1 (B1) P0131
HO2S1 (B1) P0132
HO2S1 (B1) P0133
HO2S1 (B2) P0150
HO2S1 (B2) P0151
HO2S1 (B2) P0152
HO2S1 (B2) P0153
HO2S2
HO2S2 (B1) P0137
HO2S2 (B1) P0138
HO2S2 (B1) P0139
HO2S2 (B2) P0157
HO2S2 (B2) P0158
HO2S2 (B2) P0159
SEF705Y
SEF707X
REAL TIME DIAGNOSIS IN DATA MONITOR MODE
(RECORDING VEHICLE DATA)
NHEC0034S10
CONSULT-II has two kinds of triggers and they can be selected by
touching “SETTING” in “DATA MONITOR” mode.
1)
“AUTO TRIG” (Automatic trigger):
I
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, “MONITOR”
in “DATA MONITOR” screen is changed to “Recording Data ...
xx%” as shown at left, and the data after the malfunction detec-
tion 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):
I
DTC/1st trip DTC and malfunction item will not be displayed
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont’d)
EC-101
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.
Use these triggers as follows:
1)
“AUTO TRIG”
I
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 malfunc-
tion at the moment it is detected.
I
While narrowing down the possible causes, CONSULT-II
should be set in “DATA MONITOR (AUTO TRIG)” mode, espe-
cially in case the incident is intermittent.
When you are inspecting the circuit by gently shaking (or twist-
ing) the suspicious connectors, components and harness in
the “DTC Confirmation Procedure”, the moment a malfunction
is found the DTC/1st trip DTC will be displayed. (Refer to
GI-25, “Incident Simulation Tests”.)
2)
“MANU TRIG”
I
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 further diagnosis, such as a comparison with
the value for the normal operating condition.
SEF720X
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont’d)
EC-102
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