Infiniti I35 (A33). Manual — part 190
Item
DIAGNOSTIC TEST MODE
WORK
SUP-
PORT
SELF-DIAGNOSTIC
RESULTS
DATA
MONI-
TOR
DATA
MONI-
TOR
(SPEC)
ACTIVE
TEST
DTC & SRT
CONFIRMATION
DTC*1
FREEZE
FRAME
DATA*2
SRT
STATUS
DTC
WORK
SUP-
PORT
ENGINE
CONTROL
COMPONENT
P
ARTS
OUTPUT
Injectors
X
X
X
Power transistor (Ignition timing)
X
X
X
Throttle control motor relay
X
X
X
EVAP canister purge volume
control solenoid valve
X
X
X
X
X
Air conditioner relay
X
X
Fuel pump relay
X
X
X
X
Heated oxygen sensor 1 heater
X
X
X
X
Heated oxygen sensor 2 heater
X
X
X
X
EVAP canister vent control valve
X
X
X
X
X
Vacuum cut valve bypass valve
X
X
X
X
X
X
VIAS control solenoid valve
X
X
X
X
Intake valve timing control sole-
noid valve
X
X
X
X
Electronic controlled engine
mount
X
X
X
Calculated load value
X
X
X
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 data
mode only if a 1st trip DTC or DTC is detected. For details, refer to EC-76.
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ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont’d)
EC-101
FUNCTION
=NHEC0034S03
Diagnostic test mode
Function
WORK SUPPORT
This mode enables a technician to adjust some devices faster and more accurately by following the
indications on the CONSULT-II unit.
SELF-DIAG RESULTS
Self-diagnostic results such as 1st trip DTC, DTCs and 1st trip freeze frame data or freeze frame
data can be read and erased quickly.*1
DATA MONITOR
Input/Output data in the ECM can be read.
DATA MONITOR (SPEC)
Input/Output specification of the basic fuel schedule, AFM, A/F feedback control value and the
other data monitor items can be read.
CAN DIAGNOSTIC SUP-
PORT MONITOR
The results of transmit/receive diagnosis of CAN communication can be read.
ACTIVE TEST
Diagnostic Test Mode in which CONSULT-II drives some actuators apart from the ECMs and also
shifts some parameters in a specified range.
FUNCTION TEST
Conducted by CONSULT-II instead of a technician to determine whether each system is “OK” or
“NG”.
DTC & SRT CONFIRMA-
TION
The status of system monitoring tests and the self-diagnosis status/result can be confirmed.
ECM PART NUMBER
ECM part number can be read.
*1 The following emission-related diagnostic information is cleared when the ECM memory is erased.
1)
Diagnostic trouble codes
2)
1st trip diagnostic trouble codes
3)
Freeze frame data
4)
1st trip freeze frame data
5)
System readiness test (SRT) codes
6)
Test values
7)
Others
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont’d)
EC-102
WORK SUPPORT MODE
=NHEC0034S04
WORK ITEM
CONDITION
USAGE
FUEL PRESSURE RELEASE
I
FUEL PUMP WILL STOP BY TOUCHING “START”
DURING IDLING.
CRANK A FEW TIMES AFTER ENGINE STALLS.
When releasing fuel pressure
from fuel line
IDLE AIR VOL LEARN
I
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
I
THE COEFFICIENT OF SELF-LEARNING CONTROL
MIXTURE RATIO RETURNS TO THE ORIGINAL
COEFFICIENT.
When clearing the coefficient of
self-learning control value
EVAP SYSTEM CLOSE
OPEN THE VACUUM CUT VALVE BYPASS VALVE AND
CLOSE THE EVAP CANISTER VENT CONTROL VALVE
IN ORDER TO MAKE EVAP SYSTEM CLOSE UNDER
THE FOLLOWING CONDITIONS.
I
IGN SW ON
I
ENGINE NOT RUNNING
I
AMBIENT TEMPERATURE IS ABOVE 0°C (32°F).
I
NO VACUUM AND NO HIGH PRESSURE IN EVAP
SYSTEM
I
TANK FUEL TEMP. IS MORE THAN 0°C (32°F).
I
WITHIN 10 MINUTES AFTER STARTING “EVAP SYS-
TEM CLOSE”
I
WHEN TRYING TO EXECUTE “EVAP SYSTEM
CLOSE” UNDER THE CONDITION EXCEPT ABOVE,
CONSULT-II WILL DISCONTINUE IT AND DISPLAY
APPROPRIATE INSTRUCTION.
NOTE:
WHEN STARTING ENGINE, CONSULT-II MAY DIS-
PLAY “BATTERY VOLTAGE IS LOW. CHARGE
BATTERY”, EVEN IN USING CHARGED BATTERY.
When detecting EVAP vapor leak
point of EVAP system
TARGET IGN TIM ADJ*
I
IDLE CONDITION
I
When adjusting target ignition
timing
After adjustment, confirm target
ignition timing with a timing
light.
I
If once the “TARGET IDLE
RPM ADJ” has been done, the
Idle Air Volume Learning proce-
dure will not be completed.
TARGET IDLE RPM ADJ*
I
IDLE CONDITION
When setting target idle speed
*: This function is not necessary in the usual service procedure.
SELF-DIAGNOSTIC MODE
NHEC0034S05
DTC and 1st Trip DTC
NHEC0034S0501
Regarding items of DTC and 1st trip DTC, refer to “TROUBLE
DIAGNOSIS — INDEX” (See EC-9.)
Freeze Frame Data and 1st Trip Freeze Frame Data
NHEC0034S0502
Freeze frame data
item*1
Description
DIAG TROUBLE
CODE
[PXXXX]
I
The engine control component part/control system has a trouble code, it is displayed as “PXXXX”.
(Refer to “TROUBLE DIAGNOSIS — INDEX”, EC-9.)
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ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont’d)
EC-103
Freeze frame data
item*1
Description
FUEL SYS-B1
I
“Fuel injection system status” at the moment a malfunction is detected is displayed.
I
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 [%]
I
The calculated load value at the moment a malfunction is detected is displayed.
COOLANT TEMP [°C]
or [°F]
I
The engine coolant temperature at the moment a malfunction is detected is displayed.
S-FUEL TRM-B1 [%]
I
“Short-term fuel trim” at the moment a malfunction is detected is displayed.
I
The short-term fuel trim indicates dynamic or instantaneous feedback compensation to the base fuel
schedule.
S-FUEL TRM-B2 [%]
L-FUEL TRM-B1 [%]
I
“Long-term fuel trim” at the moment a malfunction is detected is displayed.
I
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 [%]
ENGINE SPEED
[rpm]
I
The engine speed at the moment a malfunction is detected is displayed.
VEHICL SPEED
[km/h] or [mph]
I
The vehicle speed at the moment a malfunction is detected is displayed.
B/FUEL SCHDL
[msec]
I
The base fuel schedule at the moment a malfunction is detected is displayed.
INT/A TEMP SE [°C]
or [°F]
I
The intake air temperature at the moment a malfunction is detected is displayed.
*1: The items are the same as those of 1st trip freeze frame data.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont’d)
EC-104
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