Nissan Rogue. Instruction — part 452
EC-76
< SYSTEM DESCRIPTION >
[QR25DE]
DIAGNOSIS SYSTEM (ECM)
*: The item is indicated, but not used.
NOTE:
Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically.
WORK SUPPORT MODE
Work Item
SYSTEM 1 DIAG-
NOSIS A B1
INCMP/CM-
PLT
• Indicates DTC P117A self-diagnosis con-
dition.
- INCMP: Self-diagnosis is incomplete.
- CMPLT: Self-diagnosis is complete.
SYSTEM 1 DIAG-
NOSIS B B1
ABSNT/
PRSNT
• Indicates DTC P117A self-diagnosis con-
dition.
- ABSNT: Self-diagnosis standby
- PRSNT: Under self-diagnosis
MASS AIR FLOW
SENSOR (Hz)
Hz
• The signal frequency of the mass air flow
sensor is displayed.
• When the engine is stopped, a
certain value is indicated.
• When engine is running, spec-
ification range is indicated in
“SPEC”.
Monitored item
Unit
Monitor Item
Selection
Description
Remarks
ECU
IN-
PUT
SIG-
NALS
MAIN
SIG-
NAL
S
Work item
Condition
Usage
IDLE AIR VOL LEARN
• The idle air volume that keeps the engine within the spec-
ified range is memorized in ECM.
When learning the idle air volume
EVAP SYSTEM CLOSE
Close the EVAP canister vent control valve in order to make
EVAP system close under the following conditions.
• Ignition switch ON
• Engine not running
• Ambient temperature is above 0
°C (32°F).
• No vacuum and no high pressure in EVAP system
• Fuel tank temp is more than 0
°C (32°F).
• Within 10 minutes after starting “EVAP SYSTEM CLOSE”
• When trying to execute “EVAP SYSTEM CLOSE” under
the condition except above, CONSULT will discontinue it
and display appropriate instruction.
NOTE:
When starting engine, CONSULT may display “BAT-
TERY VOLTAGE IS LOW. CHARGE BATTERY”, even in
when using a charged battery.
When detecting EVAP vapor leak
in the EVAP system
FUEL PRESSURE RELEASE
• Fuel pump will stop by touching “START” during idling.
Crank a few times after engine stalls.
When releasing fuel pressure from
fuel line
TARGET IGN TIM ADJ*
• Idle condition
When adjusting target ignition tim-
ing
TARGET IDLE RPM ADJ*
• Idle condition
When setting target idle speed
VIN REGISTRATION
• In this mode, VIN is registered in ECM.
When registering VIN in ECM
SELF-LEARNING CONT
• The coefficient of self-learning control mixture ratio returns
to the original coefficient.
When clearing mixture ratio self-
learning value
CLSD THL POS LEARN
• Ignition on and engine stopped.
When learning the throttle valve
closed position
SAVING DATA FOR REPLC CPU
In this mode, save data that is in ECM.
SAVING DATA FOR REPLC CPU
WRITING DATA FOR REPLC CPU
In this mode, write data stored by “SAVE DATA FOR CPU
REPLC” in work support mode to ECM.
WRITING DATA FOR REPLC
CPU
DIAGNOSIS SYSTEM (ECM)
EC-77
< SYSTEM DESCRIPTION >
[QR25DE]
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*: This function is not necessary in the usual service procedure.
ACTIVE TEST MODE
Test Item
Test item
Condition
Judgment
Check item (Remedy)
FUEL INJECTION
• Engine: Return to the original
trouble condition
• Change the amount of fuel injec-
tion using CONSULT.
If trouble symptom disappears, see
CHECK ITEM.
• Harness and connectors
• Fuel injector
• Air fuel ratio (A/F) sensor 1
ENG COOLANT
TEMP
• Engine: Return to the original
trouble condition
• Change the engine coolant tem-
perature using CONSULT.
If trouble symptom disappears, see
CHECK ITEM.
• Harness and connectors
• Engine coolant temperature
sensor
• Fuel injector
PURG VOL CONT/V
• Engine: After warming up, run en-
gine at 1,500 rpm.
• Change the EVAP canister purge
volume control solenoid valve
opening percent using CON-
SULT.
Engine speed changes according
to the opening percent.
• Harness and connectors
• Solenoid valve
FUEL/T TEMP SEN
• Change the fuel tank temperature using CONSULT.
FAN DUTY CON-
TROL*
• Ignition switch: ON
• Change duty ratio using CON-
SULT.
Cooling fan speed changes.
• Harness and connectors
• Cooling fan motor
• Cooling fan relay
• Cooling fan control module
• IPDM E/R
FUEL PUMP RELAY
• Ignition switch: ON (Engine
stopped)
• Turn the fuel pump relay “ON”
and “OFF” using CONSULT and
listen to operating sound.
Fuel pump relay makes the operat-
ing sound.
• Harness and connectors
• Fuel pump relay
TUMBLE CONTROL
VALVE
• Ignition switch: ON
• Turn intake manifold runner con-
trol valve “ON” and “OFF” using
CONSULT and listen to operating
sound.
Intake Manifold Runner control
valve motor makes an operating
sound.
• Harness and connectors
• Intake Manifold Runner control
valve motor
IGNITION TIMING
• Engine: Return to the original
trouble condition
• Timing light: Set
• Retard the ignition timing using
CONSULT.
If trouble symptom disappears, see
CHECK ITEM.
• Perform Idle Air Volume Learn-
ing.
POWER BALANCE
• Engine: After warming up, idle the
engine.
• A/C switch OFF
• Selector lever: P or N
• Cut off each fuel injector signal
one at a time using CONSULT.
Engine runs rough or stops.
• Harness and connectors
• Compression
• Fuel injector
• Power transistor
• Spark plug
• Ignition coil
VENT CONTROL/V
• Ignition switch: ON (Engine
stopped)
• Turn solenoid valve “ON” and
“OFF” using CONSULT and listen
to operating sound.
Solenoid valve makes an operating
sound.
• Harness and connectors
• Solenoid valve
INT V/T ASSIGN AN-
GLE
• Engine: Return to the original
trouble condition
• Change intake valve timing using
CONSULT.
If trouble symptom disappears, see
CHECK ITEM.
• Harness and connectors
• Intake valve timing control sole-
noid valve
EXH V/T ASSIGN
ANGLE
• Engine: Return to the original
trouble condition
• Change exhaust valve timing us-
ing CONSULT.
If trouble symptom disappears, see
CHECK ITEM.
• Harness and connectors
• Exhaust valve timing control so-
lenoid valve
EC-78
< SYSTEM DESCRIPTION >
[QR25DE]
DIAGNOSIS SYSTEM (ECM)
*: Leaving cooling fan OFF with CONSULT while engine is running may cause the engine to overheat.
DTC WORK SUPPORT MODE
Test Item
SRT & P-DTC MODE
SRT STATUS Mode
• For items whose SRT codes are set, “CMPLT” is displayed on the CONSULT screen; for items whose SRT
codes are not set, “INCMP” is displayed.
• “SRT STATUS” provides the presence or absence of permanent DTCs stored in ECM memory.
PERMANENT DTC STATUS Mode
How to display permanent DTC status
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON.
5. Select “PERMANENT DTC STATUS” in “DTC & SRT CONFIRMATION” mode with CONSULT.
NOTE:
Permanent DTCs stored in ECM memory are displayed on the CONSULT screen to show if a driving pat-
tern required for erasing permanent DTCs is complete (CMPLT) or incomplete (INCMP).
CAUTION:
Since the “PERMANENT DTC STATUS” screen displays the previous trip information, repeat the
following twice to update the information: “Ignition switch OFF”, “Wait for more than 10 seconds”
and “Ignition switch ON”.
NOTE:
This mode is not used in regions that permanent DTCs are not regulated by law.
SRT WORK SUPPORT Mode
This mode enables a technician to drive a vehicle to set the SRT while monitoring the SRT status.
Test mode
Test item
Corresponding DTC No.
Reference page
A/F SEN1
A/F SEN1(B1) P1276
P0130
A/F SENSOR1(B1) P014C/P014D
P014C, P014D
A/F SENSOR1(B1) P015A/P015B
P015A, P015B
EVAPORATIVE SYSTEM
PURG FLOW P0441
P0441
PURG VOL CN/V P1444
P0443
HO2S2
HO2S2(B1) P1146
P0138
HO2S2(B1) P1147
P0137
HO2S2(B1) P0139
P0139
JSBIA0062GB
DIAGNOSIS SYSTEM (ECM)
EC-79
< SYSTEM DESCRIPTION >
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PERMANENT DTC WORK SUPPORT Mode
This mode enables a technician to drive a vehicle to complete the driving pattern that is required for erasing
permanent DTC.
NOTE:
This mode is not used in regions that permanent DTCs are not regulated by law.
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