Nissan Juke Service and Repair Manual : 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".
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace harness or connector.
2.CHECK WIRING HARNESS
Visually check the condition of the engine wiring harness.
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace harness or connector.
3.CHECK ENGINE COOLANT TEMPERATURE SENSOR
Check engine coolant temperature sensor. Refer to EC-908, "Component Inspection".
Is the turbocharger correct? Yes >> GO TO 4.
No >> Repair or replace.
4.CHECK TURBOCHARGER
Check that the turbocharger is working properly. Refer to EC-1003, "Diagnosis Procedure".
Is the turbocharger correct? Yes >> GO TO 5.
No >> Repair or replace.
5.CHECK CLUTCH PEDAL POSITION SWITCH
Check clutch pedal position switch.
Is the inspection result normal? YES >> GO TO 6.
NO >> Repair or replace.
6.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 7.
NO >> Repair or replace.
7.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 8.
NO >> Repair or replace harness or connector.
8.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 9.
9.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 10.
10.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 11.
11.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 12.
12.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
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 t ...
Overspeed at idle speed or on releasing brake
Description
CHART 14: OVERSPEED AT IDLE SPEED OR ON RELEASING BRAKE
Diagnosis Procedure
1.CHECK ENGINE OIL
Check the grade of engine oil. Refer to LU-33, "Inspection".
Is the inspecti ...
Other materials:
Wiring diagram
SRS AIR BAG SYSTEM
Wiring Diagram
For connector terminal arrangements, harness layouts, and alphabets in a
(option abbreviation; if not
described in wiring diagram), refer to GI-12, "Connector Information/Explanation
of Option Abbreviation".
...
Precaution
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT
PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injury to the
driver a ...
Diagnosis and repair work flow
Work Flow
DETAILED FLOW
1.INTERVIEW FROM THE CUSTOMER
Clarify customer complaints before inspection. First of all, perform an
interview utilizing BRC-146, "Diagnostic
Work Sheet" and reproduce the symptom as well as fully understand it. Ask
customer about his/her complaints
carefu ...