2007 NISSAN TIIDA Engine Control

EC-1272
< SYMPTOM DIAGNOSIS >[K9K]
ERRATIC ACCELERATION
ERRATIC ACCELERATION
DescriptionINFOID:0000000001162717
CHART 10: Erratic acceleration
Diagnosis ProcedureINFOID:0000000001162718
1.CHECK ECM POWER SUPPLY AND GROUND CIRCUIT
Check ECM power supply and ground circuit. Refer to EC-1106, "
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-1193, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace.
4.CHECK ASCD CLUTCH SWITCH
Check ASCD clutch switch. Refer to EC-1209, "
Component Inspection".
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-25, "
CONSULT-III Function (ABS)" (without
ESP) or BRC-105, "
CONSULT-III Function (ABS)" (with ESP).]
 Combination meter (Refer to MWI-22, "
CONSULT-III Function (METER/M&A)".)
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-33, "
CAN Com-
munication 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-1044,
"BASIC INSPECTION : Special Repair Requirement [TEST 3: High Pressure Supply Pump (Pressure Control
Valve) Check]".
>> GO TO 8.
8.CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)

LOSS OF POWER
EC-1275
< SYMPTOM DIAGNOSIS >[K9K]
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LOSS OF POWER
DescriptionINFOID:0000000001162721
CHART 12: LOSS OF POWER
Diagnosis ProcedureINFOID:0000000001162722
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-26, "
Inspection".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace engine oil. Refer to LU-27, "
Refilling"
4.CHECK ENGINE OIL LEVEL
Is the engine oil level correct?
Ye s o r N o
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-1106, "
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-269, "
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-1134, "
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-1125, "
Component Inspection".

EC-1278
< SYMPTOM DIAGNOSIS >[K9K]
TOO MUCH POWER
TOO MUCH POWER
DescriptionINFOID:0000000001162723
CHART 13: TOO MUCH POWER
Diagnosis ProcedureINFOID:0000000001162724
1.CHECK ECM POWER SUPPLY AND GROUND CIRCUIT
Check ECM power supply and ground circuit. Refer to EC-1106, "
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-1133, "
Component Inspection".
Is the turbocharger correct?
Ye s > > G O T O 4 .
No >> Repair or replace.
4.CHECK TURBOCHARGER
Check that the turbocharger is working properly. Refer to EC-1195, "
Diagnosis Procedure".
Is the turbocharger correct?
Ye s > > G O T O 5 .
No >> Repair or replace.
5.CHECK ASCD CLUTCH SWITCH
Check ASCD clutch switch. Refer to EC-1209, "
Component Inspection".
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-25, "
CONSULT-III Function (ABS)" (without
ESP) or BRC-105, "
CONSULT-III Function (ABS)" (with ESP).]
 Combination meter (Refer to MWI-22, "
CONSULT-III Function (METER/M&A)".)
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-33, "
CAN Com-
munication 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)

EC-1280
< SYMPTOM DIAGNOSIS >[K9K]
OVERSPEED AT IDLE SPEED OR ON RELEASING BRAKE
OVERSPEED AT IDLE SPEED OR ON RELEASING BRAKE
DescriptionINFOID:0000000001162725
CHART 14: OVERSPEED AT IDLE SPEED OR ON RELEASING BRAKE
Diagnosis ProcedureINFOID:0000000001162726
1.CHECK ENGINE OIL
Check the grade of engine oil. Refer to LU-26, "
Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace engine oil. Refer to LU-27, "
Refilling"
2.CHECK ENGINE OIL LEVEL
Is the engine oil level correct?
Ye s o r N o
Ye s > > G O T O 3 .
No >> Top up the oil.
3.CHECK ECM POWER SUPPLY AND GROUND CIRCUIT
Check ECM power supply and ground circuit. Refer to EC-1106, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness or connector.
4.CHECK WIRING HARNESS
Visually check the condition of the engine wiring harness.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace harness or connector.
5.CHECK CAN COMMUNICATION
Perform trouble diagnosis on the CAN communication line using CONSULT-III. Refer to LAN-33, "
CAN Com-
munication Signal Chart".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace harness or connector.
6.CHECK “ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)”
Perform trouble diagnosis on the “ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)”. Refer to BRC-
25, "CONSULT-III Function (ABS)" (without ESP) or BRC-105, "CONSULT-III Function (ABS)" (with ESP).
Is the inspection result normal?
YES >> INSPECTION END.
NO >> Repair or replace.

EXCESSIVE CONSUMPTION
EC-1281
< SYMPTOM DIAGNOSIS >[K9K]
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EXCESSIVE CONSUMPTION
DescriptionINFOID:0000000001162727
CHART 15:EXCESSIVE CONSUMPTION
Diagnosis ProcedureINFOID:0000000001162728
1.CHECK ECM POWER SUPPLY AND GROUND CIRCUIT
Check ECM power supply and ground circuit. Refer to EC-1106, "
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 AIR INTAKE SYSTEM
Check air intake system. Refer to EM-269, "
Removal and Installation".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace air intake system.
4.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR
Check electric throttle control actuator. Refer to EC-1134, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace.
5.CHECK MASS AIR FLOW SENSOR
Check mass air flow sensor. Refer to EC-1125, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace.
6.CHECK TURBOCHARGER
Check that the turbocharger is working properly. Refer to EC-1195, "
Diagnosis Procedure".
Is the turbocharger correct?
Yes >> GO TO 7.
No >> Repair or replace.
7.CHECK ENGINE COOLANT TEMPERATURE SENSOR
Check engine coolant temperature sensor. Refer to EC-1133, "
Component Inspection".
Is the inspection result normal?
Yes >> GO TO 8.
No >> Repair or replace.
8.CHECK LOW PRESSURE CIRCUIT
Perform the TEST 1: LOW PRESSURE CIRCUIT CHECK. Refer to EC-1043, "
BASIC INSPECTION : Special
Repair Requirement (TEST 1: Low Pressure Fuel Supply System Check)".
>> GO TO 9.
9.CHECK INTERNAL FUEL TRANSFER PUMP

ENGINE KNOCK
EC-1283
< SYMPTOM DIAGNOSIS >[K9K]
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ENGINE KNOCK
DescriptionINFOID:0000000001162729
CHART 16: ENGINE KNOCK
Diagnosis ProcedureINFOID:0000000001162730
1.CHECK ENGINE OIL
Check the grade of engine oil. Refer to LU-26, "
Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace engine oil. Refer to LU-27, "
Refilling"
2.CHECK ENGINE OIL LEVEL
Is the engine oil level correct?
Ye s o r N o
Yes >> GO TO 3.
No >> Top up the oil.
3.CHECK ECM POWER SUPPLY AND GROUND CIRCUIT
Check ECM power supply and ground circuit. Refer to EC-1106, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair or replace harness or connector.
4.CHECK WIRING HARNESS
Visually check the condition of the engine wiring harness.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair or replace harness or connector.
5.CHECK AIR INTAKE SYSTEM
Check air intake system. Refer to EM-269, "
Removal and Installation".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace air intake system.
6.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR
Check electric throttle control actuator. Refer to EC-1134, "
Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 7.
NO >> Repair or replace.
7.CHECK MASS AIR FLOW SENSOR
Check mass air flow sensor. Refer to EC-1125, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair or replace.
8.CHECK CATALYTIC CONVERTER
Is the catalytic converter clogged or deteriorated?
Is the inspection result normal?
YES >> GO TO 9.
NO >> Repair or replace.
9.CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE)

EC-1284
< SYMPTOM DIAGNOSIS >[K9K]
ENGINE KNOCK
Perform the TEST 3: HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE). Refer to EC-1044,
"BASIC INSPECTION : Special Repair Requirement [TEST 3: High Pressure Supply Pump (Pressure Control
Valve) Check]".
>> GO TO 10.
10.CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)
Perform the TEST 4: HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE). Refer to EC-
1045, "BASIC INSPECTION : Special Repair Requirement [TEST 4: High Pressure Supply Pump (Volumetric
Control Valve) Check]".
>> GO TO 11.
11 .CHECK RAIL HIGH PRESSURE CONTROL CIRCUIT
Perform the TEST 5: RAIL HIGH PRESSURE CONTROL CIRCUIT CHECK. Refer to EC-1048, "
BASIC
INSPECTION : Special Repair Requirement (TEST 5: Rail High Pressure Regulation Check)".
>> GO TO 12.
12.CHECK MAJOR LEAK IN FUEL INJECTOR/FUEL INJECTORS OPEN
Perform the TEST 6: MAJOR LEAK IN FUEL INJECTOR/FUEL INJECTORS OPEN. Refer to EC-1052,
"BASIC INSPECTION : Special Repair Requirement (TEST 6: Major Leak in Fuel Injectors/Fuel Injectors
Open)".
>> GO TO 13.
13.CHECK INCORRECT FUEL INJECTION QUANTITY
Perform the TEST 7: INCORRECT FUEL INJECTION QUANTITY. Refer to EC-1053, "
BASIC INSPECTION :
Special Repair Requirement (TEST 7: Incorrect Fuel Injection Quantity)".
>>INSPECTION END

EC-1286
< SYMPTOM DIAGNOSIS >[K9K]
ENGINE SMOKES WHEN STARTED
ENGINE SMOKES WHEN STARTED
DescriptionINFOID:0000000001162733
CHART 18: ENGINE SMOKES WHEN STARTED
Diagnosis ProcedureINFOID:0000000001162734
1.CHECK ENGINE OIL
Check the grade of engine oil. Refer to LU-26, "
Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace engine oil. Refer to LU-27, "
Refilling"
2.CHECK ENGINE OIL LEVEL
Is the engine oil level correct?
Ye s o r N o
Ye s > > G O T O 3 .
No >> Top up the oil.
3.CHECK FUEL PUMP TEMPERATURE SENSOR
Check fuel pump temperature sensor. Refer to EC-1137, "
Component Inspection".
Is the inspection result normal?
Ye s > > G O T O 4 .
No >> Repair or replace.
4.CHECK ENGINE COOLANT TEMPERATURE SENSOR
Check engine coolant temperature sensor. Refer to EC-1133, "
Component Inspection".
Is the inspection result normal?
Ye s > > G O T O 5 .
No >> Repair or replace.
5.CHECK COOLING SYSTEM
Check the cooling system. Refer to CO-53, "
Troubleshooting Chart".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace.
6.CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE)
Perform the TEST 3: HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE). Refer to EC-1044,
"BASIC INSPECTION : Special Repair Requirement [TEST 3: High Pressure Supply Pump (Pressure Control
Valve) Check]".
>> GO TO 7.
7.CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)
Perform the TEST 4: HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE). Refer to EC-
1045, "BASIC INSPECTION : Special Repair Requirement [TEST 4: High Pressure Supply Pump (Volumetric
Control Valve) Check]".
>> GO TO 8.
8.CHECK RAIL HIGH PRESSURE CONTROL CIRCUIT
Perform the TEST 5: RAIL HIGH PRESSURE CONTROL CIRCUIT CHECK. Refer to EC-1048, "
BASIC
INSPECTION : Special Repair Requirement (TEST 5: Rail High Pressure Regulation Check)".
>>INSPECTION END