Nissan Juke F15. Manual — part 320
DIAGNOSIS SYSTEM (ECM)
EC-93
< SYSTEM DESCRIPTION >
[MR FOR NISMO RS MODELS]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
*: This function is not necessary in the usual service procedure.
ACTIVE TEST MODE
Test Item
SELF-LEARNING CONT
The coefficient of self-learning control mixture ratio returns to
the original coefficient.
When clearing mixture ratio self-
learning value
G SENSOR CALIBRATION
• Park the vehicle on a flat road.
• Adjust pressure in all tires to the specified value.
Calibrates G sensor.
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.
When ECM is replaced.
WRITING DATA FOR REPLC CPU
In this mode, write data stored by “SAVE DATA FOR CPU
REPLC” in work support mode to ECM.
When ECM is replaced.
Work item
Condition
Usage
Test item
Condition
Judgement
Check item (Remedy)
VENT CONTROL/V
• Ignition switch ON (Engine
stopped)
• Turn solenoid valve ON and OFF
with the CONSULT and listen to
operating sound.
Solenoid valve makes an operating
sound.
• Harness and connectors
• EVAP canister vent control sole-
noid valve
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 sen-
sor
• Fuel injector
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
FUEL/T TEMP SEN
Change the fuel tank temperature using CONSULT.
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
CONSULT.
Engine speed changes according
to the opening percent.
• Harness and connectors
• Solenoid valve
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
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 Learning.
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
EC-94
< SYSTEM DESCRIPTION >
[MR FOR NISMO RS MODELS]
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:
ALTERNATOR DUTY
• Ignition switch: ON
• Change duty ratio using CON-
SULT.
Battery voltage changes.
• Harness and connectors
• Alternator
• IPDM E/R
POWER BALANCE
• Engine: After warming up, idle
the engine.
• A/C switch OFF
• Shift lever: P or N (CVT), Neutral
(M/T)
• Cut off each fuel injector signal
one at a time using CONSULT.
Engine runs rough or dies.
• Harness and connectors
• Compression
• Fuel injector
• Power transistor
• Spark plug
• Ignition coil
Test item
Condition
Judgement
Check item (Remedy)
Test mode
Test item
Corresponding DTC No.
Reference page
EVAPORATIVE SYS-
TEM
PURG VOL CN/V P1444
P0443
PURG FLOW P0441
P0441
HO2S2
HO2S2 (B1) P1146
P0138
HO2S2 (B1) P1147
P0137
HO2S2 (B1) P0139
P0139
A/F SEN1
A/F SEN1 (B1) P1278/P1279
—
A/F SEN1 (B1) P1276
P0130
DIAGNOSIS SYSTEM (ECM)
EC-95
< SYSTEM DESCRIPTION >
[MR FOR NISMO RS MODELS]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
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.
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.
JSBIA0062GB
EC-96
< ECU DIAGNOSIS INFORMATION >
[MR FOR NISMO RS MODELS]
ECM
ECU DIAGNOSIS INFORMATION
ECM
Reference Value
INFOID:0000000012197707
VALUES ON THE DIAGNOSIS TOOL
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
z
Numerical values in the following table are reference values.
z
These values are input/output values that ECM receives/transmits and may differ from actual operations.
Example:
The ignition timing shown by the timing light may differ from the ignition timing displayed on the data monitor.
This occurs because the timing light shows a value calculated by ECM according to signals received from the
cam shaft position sensor and other sensors related to ignition timing.
For outlines of following items, refer to
Monitor Item
Condition
Values/Status
ENG SPEED
Run engine and compare CONSULT value with the tachometer indication.
Almost the same speed as
the tachometer indication.
MAS A/F SE-B1
.
B/FUEL SCHDL
.
A/F ALPHA-B1
.
COOLANT TEMP/S
Engine: After warming up
More than 70
°C (158°F)
A/F SEN1 (B1)
Engine: After warming up
Maintaining engine speed at 2,000 rpm
Fluctuates around 2.2 V
HO2S2 (B1)
• Revving engine from idle up to 3,000 rpm quickly after the following conditions
are met.
- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load
0 - 0.3 V
←→ Approx. 0.6 -
1.0 V
HO2S2 MNTR(B1)
• Revving engine from idle up to 3,000 rpm quickly after the following conditions
are met.
- Engine: After warming up
- After keeping engine speed between 3,500 and 4,000 rpm for 1 minute and at
idle for 1 minute under no load
LEAN
←→ RICH
VHCL SPEED SE
Turn drive wheels and compare CONSULT value with the speedometer indica-
tion.
Almost the same speed as
speedometer indication.
BATTERY VOLT
Ignition switch: ON (Engine stopped)
11 - 14 V
ACCEL SEN 1
Ignition switch: ON
(Engine stopped)
Accelerator pedal: Fully released
0.6 - 0.9 V
Accelerator pedal: Fully depressed
4.0 - 4.8 V
ACCEL SEN 2
*1
Ignition switch: ON
(Engine stopped)
Accelerator pedal: Fully released
0.3 - 4.7 V
Accelerator pedal: Fully depressed
1.95 - 2.4 V
TP SEN 1-B1
• Ignition switch: ON
(Engine stopped)
• Selector lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully released
More than 0.36 V
Accelerator pedal: Fully depressed
Less than 4.75 V
TP SEN 2-B1*
• Ignition switch: ON
(Engine stopped)
• Selector lever: D (CVT), 1st (M/T)
Accelerator pedal: Fully released
More than 0.36 V
Accelerator pedal: Fully depressed
Less than 4.75 V
FUEL T/TMP SE
Ignition switch: ON
Indicates fuel tank tempera-
ture.
EVAP SYS PRES
Ignition switch: ON
Approx 0.5 - 4.6 V
FUEL LEVEL SE
Ignition switch: ON
Depending on fuel level of
fuel tank.
START SIGNAL
Ignition switch: ON
→ START → ON
OFF
→ ON → OFF
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