Nissan Juke Service and Repair Manual : Erratic acceleration
Description
CHART 10: Erratic acceleration
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 ACCELERATOR PEDAL POSITION SENSOR
Check the accelerator pedal position sensor. Refer to EC-1001, "Component Inspection".
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace.
4.CHECK CLUTCH PEDAL POSITION SWITCH
Check clutch pedal position switch.
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace.
5.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 6.
NO >> Repair or replace.
6.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 7.
NO >> Repair or replace harness or connector.
7.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 8.
8.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 9.
9.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 10.
10.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 11.
11.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
Engine bucking
Description CHART 9: ENGINE BUCKING Diagnosis Procedure 1.CHECK ECM POWER SUPPLY AND GROUND CIRCUIT Check ECM power supply and ground circuit. Refer to EC-885, "Diagnosis Procedure". ...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" ...Other materials:
Power supply and ground circuit
Power window main switch
POWER WINDOW MAIN SWITCH : Diagnosis Procedure
1.CHECK POWER WINDOW MAIN SWITCH POWER SUPPLY
1. Turn ignition OFF.
2. Disconnect power window main switch connector.
3. Check voltage between power window main switch harness connector and ground.
(): RHD models
Is the ...
Drive belt
Exploded View
1. Alternator
2. Drive belt auto-tensioner
3. Crankshaft pulley
4. A/C compressor
5. Water pump
6. Drive belt
A. Possible use range
B.
Range when new drive belt is installed
C. Indicator
Checking
WARNING:
Perform this step when engine is stopped.
• Check that th ...
Diagnosis and repair work flow
Work Flow
OVERALL SEQUENCE
DETAILED FLOW
1.GET INFORMATION FOR SYMPTOM
1. Get the detailed information from the customer about the symptom (the
condition and the environment
when the incident/malfunction occurred).
2. Check operation condition of the function that is malfunctioning.
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