Nissan Juke Service and Repair Manual : Loss of power
Description
CHART 12: LOSS OF POWER
Diagnosis Procedure
1.CHECK FUEL
Check that the fuel reservoir is correctly filled and with the right fuel.
>> GO TO 2.
2.CHECK FUEL FILTER
Check the correctness of the fuel filter.
Is the fuel filter correct? Yes >> GO TO 3.
No >> Replace the fuel filter with an genuine part.
3.CHECK ENGINE OIL
Check the grade of engine oil. Refer to LU-33, "Inspection".
Is the inspection result normal? YES >> GO TO 4.
NO >> Replace engine oil. Refer to LU-34, "Refilling".
4.CHECK ENGINE OIL LEVEL
Is the engine oil level correct? Yes or No Yes >> GO TO 5.
No >> Top up the oil.
5.CHECK ECM POWER SUPPLY AND GROUND CIRCUIT
Check ECM power supply and ground circuit. Refer to EC-885, "Diagnosis Procedure".
Is the inspection result normal? YES >> GO TO 6.
NO >> Repair or replace harness or connector.
6.CHECK WIRING HARNESS
Visually check the condition of the engine wiring harness.
Is the inspection result normal? YES >> GO TO 7.
NO >> Repair or replace harness or connector.
7.CHECK AIR INTAKE SYSTEM
Check air intake system. Refer to EM-280, "Removal and Installation".
Is the inspection result normal? YES >> GO TO 8.
NO >> Repair or replace.
8.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR
Check electric throttle control actuator. Refer to EC-909, "Diagnosis Procedure".
Is the inspection result normal? YES >> GO TO 9.
NO >> Repair or replace.
9.CHECK MASS AIR FLOW SENSOR
Check mass air flow sensor. Refer to EC-902, "Component Inspection".
Is the inspection result normal? YES >> GO TO 10.
NO >> Repair or replace.
10.CHECK ACCELERATOR PEDAL POSITION SENSOR
Check the accelerator pedal position sensor. Refer to EC-1001, "Component Inspection".
Is the inspection result normal? YES >> GO TO 11.
NO >> Repair or replace.
11.CHECK CLUTCH PEDAL POSITION SWITCH
Check clutch pedal position switch.
Is the inspection result normal? YES >> GO TO 12.
NO >> Repair or replace.
12.CHECK VEHICLE SPEED SIGNAL
Check the following component.
• ???ABS actuator and electric unit (control unit)??? [Refer to BRC-24, "CONSULT-III Function". (Without ESP), BRC-131, "CONSULT-III Function". (With ESP)] • Combination meter (Refer to MWI-23, "CONSULT-III Function".) Is the inspection result normal? YES >> GO TO 13.
NO >> Repair or replace.
13.CHECK TURBOCHARGER
Check that the turbocharger is working properly. Refer to EC-1003, "Diagnosis Procedure".
Is the turbocharger correct? Yes >> GO TO 14.
No >> Repair or replace.
14.CHECK CAN COMMUNICATION
Perform trouble diagnosis on the CAN communication line using CONSULT-III. Refer to LAN-31, "CAN COMMUNICATION SYSTEM : CAN Communication Signal Chart".
Is the inspection result normal? YES >> GO TO 15.
NO >> Repair or replace harness or connector.
15.CHECK EGR SYSTEM
Check EGR system. Refer to EC-954, "Diagnosis Procedure".
Is the inspection result normal? YES >> GO TO 16.
NO >> Repair or replace.
16.CHECK CATALYTIC CONVERTER
Is the catalytic converter clogged or deteriorated? Is the inspection result normal? YES >> GO TO 17.
NO >> Repair or replace.
17.CHECK LOW PRESSURE CIRCUIT
Perform the TEST 1: LOW PRESSURE CIRCUIT CHECK. Refer to EC-867, "Work Procedure (TEST 1: Low Pressure Fuel Supply System Check)".
>> GO TO 18.
18.CHECK INTERNAL FUEL TRANSFER PUMP
Perform the TEST 2: INTERNAL FUEL TRANSFER PUMP CHECK. Refer to EC-868, "Work Procedure (TEST 2: Internal Fuel Transfer Pump Check)".
>> GO TO 19.
19.CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE)
Perform the TEST 3: HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE). Refer to EC-868, "Work Procedure [TEST 3: High Pressure Supply Pump (Pressure Control Valve) Check]".
>> GO TO 20.
20.CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)
Perform the TEST 4: HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE). Refer to EC- 869, "Work Procedure [TEST 4: High Pressure Supply Pump (Volumetric Control Valve) Check]".
>> GO TO 21.
21.CHECK RAIL HIGH PRESSURE CONTROL CIRCUIT
Perform the TEST 5: RAIL HIGH PRESSURE CONTROL CIRCUIT CHECK. Refer to EC-871, "Work Procedure (TEST 5: Rail High Pressure Regulation Check)".
>> GO TO 22.
22.CHECK MAJOR LEAK IN FUEL INJECTOR/FUEL INJECTORS OPEN
Perform the TEST 6: MAJOR LEAK IN FUEL INJECTOR/FUEL INJECTORS OPEN. Refer to EC-876, "Work Procedure (TEST 6: Fuel Injectors Leak Check)".
>> GO TO 23.
23.CHECK INCORRECT FUEL INJECTION QUANTITY
Perform the TEST 7: INCORRECT FUEL INJECTION QUANTITY. Refer to EC-877, "Work Procedure (TEST 7: Fuel Injection Quantity Check)".
>> INSPECTION END
No engine braking
Description
CHART 11: NO ENGINE BRAKING
Diagnosis Procedure
1.CHECK ECM POWER SUPPLY AND GROUND CIRCUIT
Check ECM power supply and ground circuit. Refer to EC-885, "Diagnosis
Procedure" ...
Too much power
Description
CHART 13: TOO MUCH POWER
Diagnosis Procedure
1.CHECK ECM POWER SUPPLY AND GROUND CIRCUIT
Check ECM power supply and ground circuit. Refer to EC-885, "Diagnosis
Procedure".
...
Other materials:
Diagnosis system (BCM) (without intelligent key system)
Common item
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the fo ...
Precaution Necessary for Steering Wheel Rotation after Battery Disconnect
NOTE:
• Before removing and installing any control units, first turn the ignition
switch to the LOCK position, then disconnect
both battery cables.
• After finishing work, confirm that all control unit connectors are connected
properly, then re-connect both
battery cables.
• Always use CONS ...
Precaution Necessary for Steering Wheel Rotation after Battery Disconnect
NOTE:
• Before removing and installing any control units, first turn the ignition
switch to the LOCK position, then disconnect
both battery cables.
• After finishing work, confirm that all control unit connectors are connected
properly, then re-connect both
battery cables.
• Always use CONS ...