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Nissan Juke F15. Manual - part 320

DIAGNOSIS SYSTEM (ECM)

EC-93

< SYSTEM DESCRIPTION >

[MR FOR NISMO RS MODELS]

*: 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

EC-360

PURG FLOW P0441

P0441

EC-355

HO2S2

HO2S2 (B1) P1146

P0138

EC-279

HO2S2 (B1) P1147

P0137

EC-273

HO2S2 (B1) P0139

P0139

EC-286

A/F SEN1

A/F SEN1 (B1) P1278/P1279

—

A/F SEN1 (B1) P1276

P0130

EC-263

DIAGNOSIS SYSTEM (ECM)

EC-95

< SYSTEM DESCRIPTION >

[MR FOR NISMO RS MODELS]

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.

Numerical values in the following table are reference values.

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

EC-84, "CONSULT Function"

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

See

EC-181, "Diagnosis Procedure"

B/FUEL SCHDL

See

EC-181, "Diagnosis Procedure"

A/F ALPHA-B1

See

EC-181, "Diagnosis Procedure"

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

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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