Infiniti G35 (V35). Manual — part 310
TROUBLE DIAGNOSIS
EC-121
C
D
E
F
G
H
I
J
K
L
M
A
EC
CONSULT-II Function (ENGINE)
NBS000NK
FUNCTION
*: The following emission-related diagnostic information is cleared when the ECM memory is erased.
●
Diagnostic trouble codes
●
1st trip diagnostic trouble codes
●
Freeze frame data
●
1st trip freeze frame data
●
System readiness test (SRT) codes
●
Test values
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-diagnostic 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.*
Data monitor
Input/Output data in the ECM can be read.
Data monitor (SPEC)
Input/Output of the specification for Basic fuel schedule, AFM, A/F feedback control value and the
other data monitor items can be read.
CAN diagnostic support
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.
DTC & SRT confirmation
The status of system monitoring tests and the self-diagnosis status/result can be confirmed.
Function test
This mode is used to inform customers when their vehicle condition requires periodic maintenance.
ECM part number
ECM part number can be read.
EC-122
TROUBLE DIAGNOSIS
ENGINE CONTROL COMPONENT PARTS/CONTROL SYSTEMS APPLICATION
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
IN
P
U
T
Crankshaft position sensor (POS)
×
×
×
×
Camshaft position sensor (PHASE)
×
×
×
×
Mass air flow sensor
×
×
×
Engine coolant temperature sensor
×
×
×
×
×
Engine oil temperature sensor*
3
*
4
×
×
Air Fuel ratio (A/F) sensor 1
×
×
×
×
×
Heated oxygen sensor 2
×
×
×
×
×
Vehicle speed sensor
×
×
×
×
Accelerator pedal position sensor
×
×
×
Throttle position sensor
×
×
×
×
Fuel tank temperature sensor
×
×
×
×
EVAP control system pressure
sensor
×
×
×
Intake air temperature sensor
×
×
×
×
Knock sensor
×
Refrigerant pressure sensor
×
×
Closed throttle position switch
(accelerator pedal position sensor
signal)
×
×
Air conditioner switch
×
×
Park/neutral position (PNP) switch
×
×
×
Stop lamp switch
×
×
×
Power steering pressure sensor
×
×
×
Battery voltage
×
×
Load signal
×
×
Exhaust valve timing control posi-
tion sensor*
3
×
×
×
Fuel level sensor
×
×
×
ASCD steering switch
×
×
×
ASCD brake switch
×
×
×
ASCD clutch switch
×
×
×
TROUBLE DIAGNOSIS
EC-123
C
D
E
F
G
H
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J
K
L
M
A
EC
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-124, "Freeze Frame Data and 1st Trip Freeze Frame Data"
*3: For models with M/T.
*4: This sensor is not for controlling the engine system, nor for the on board diagnosis.
*5: Always “CMPLT” is displayed.
INSPECTION PROCEDURE
Refer to
GI-37, "CONSULT-II Start Procedure"
.
WORK SUPPORT MODE
Work Item
ENGI
NE CONTROL C
O
MPONENT P
ARTS
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
×
×
×
×
*
5
Heated oxygen sensor 2 heater
×
×
×
×
*
5
EVAP canister vent control valve
×
×
×
×
×
Intake valve timing control solenoid
valve
×
×
×
×
Exhaust valve timing control mag-
net retarder*
3
×
×
×
×
×
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*
1
FREEZE
FRAME
DATA*
2
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
EC-124
TROUBLE DIAGNOSIS
*1: This function is not necessary in the usual service procedure.
*2: For models with M/T.
SELF-DIAG RESULTS MODE
Self Diagnostic Item
Regarding items of DTC and 1st trip DTC, refer to
EC-48, "EMISSION-RELATED DIAGNOSTIC INFORMA-
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
EXH V/T CONTROL LEARN*
2
●
IN THIS MODE, OPERATION TO LEARN EXHAUST
VALVE TIMING CONTROL MAGNET RETARDER
CHARACTERISTIC.
When learning the exhaust valve
timing control
TARGET IDLE RPM ADJ*
1
●
IDLE CONDITION
When setting target idle speed
TARGET IGN TIM ADJ*
1
●
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
.)
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 [%]
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