2009 NISSAN TIIDA engine control system

ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-551
< SERVICE INFOMATION >
[MR TYPE 1] C
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• Sea level
• Flat road
• Ambient air temperature: 20 - 30 °C (68 - 86 °F)
• Diagnosis is performed as quickly as possible under normal conditions.
Under different conditions [For example: ambient air temperature other than 20 - 30 °C (68 - 86 °F)], diagno-
sis may also be performed.
Pattern 1:
• The engine is started at the engine coolant temperature of −10 to 35 °C (14 to 95 °F)
(where the voltage between the ECM terminal 38 and ground is 3.0 - 4.3V).
• The engine must be operated at idle speed until the engine coolant temperature is greater than 70 °C
(158 °F) (where the voltage between the ECM te rminal 38 and ground is lower than 1.4V).
• The engine is started at the fuel tank temperature of warmer than 0 °C (32 °F) (where the voltage
between the ECM terminal 43 and ground is less than 4.1V).
Pattern 2:
• When steady-state driving is performed again even afte r it is interrupted, each diagnosis can be conducted.
In this case, the time required for diagnosis may be extended.
Pattern 3:
• Operate vehicle following the driving pattern shown in the figure.
• Release the accelerator pedal during decelerating vehicle speed
from 90 km/h (56 MPH) to 0 km/h (0 MPH).
Pattern 4:
• The accelerator pedal must be held very steady during steady-
state driving.
• If the accelerator pedal is moved, the test must be conducted all over again.
*1: Depress the accelerator pedal until vehicle speed is 90 km/h (56
MPH), then release the accelerator pedal and keep it released for
more than 10 seconds. Depress the accelerator pedal until vehicle
speed is 90 km/h (56 MPH) again.
*2: Checking the vehicle speed with GST is advised.
Suggested Transmission Gear Po sition for A/T and CVT Models
Set the selector lever in the D position (CVT), D position with the overdrive switch turned ON (A/T).
Suggested upshift speeds for M/T models
Shown below are suggested vehicle speeds for shifting into a higher gear. These suggestions relate to fuel
economy and vehicle performance. Actual upshift speeds will vary according to road conditions, the weather
and individual driving habits.
Suggested Maximum Speed in Each Gear
Downshift to a lower gear if the engine is not running smoothly, or if you need to accelerate.
Do not exceed the maximum suggested speed (shown below) in any gear. For level road driving, use the high-
est gear suggested for that speed. Always observe post ed speed limits and drive according to the road condi-
tions to ensure safe operation. Do not over-rev t he engine when shifting to a lower gear as it may cause
engine damage or loss of vehicle control. PBIB2244E
For normal accelera
tion in low alti-
tude areas
[less than 1,219 m (4,000 ft)]: For quick acceleration in low alti-
tude areas For high attitude areas
[over 1,219m (4,000 ft)]:
Gear change ACCEL shift point km/h (MPH) km/h (MPH) km/h (MPH)
1st to 2nd 13 (8) 24 (15) 24 (15)
2nd to 3rd 27 (17) 40 (25) 40 (25)
3rd to 4th 40 (25) 53 (33) 65 (40)
4th to 5th 58 (36) 71 (44) 73 (45)
5th to 6th 82 (51) 82 (51) 82 (51)

TROUBLE DIAGNOSIS
EC-577
< SERVICE INFOMATION >
[MR TYPE 1] C
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TROUBLE DIAGNOSIS
Trouble Diagnosis Introduction INFOID:0000000004537051
INTRODUCTION The engine has an ECM to control major systems such as fuel con-
trol, ignition control, idle air control system, etc. The ECM accepts
input signals from sensors and instantly drives actuators. It is essen-
tial that both input and output signals are proper and stable. At the
same time, it is important that there are no malfunctions such as vac-
uum leaks, fouled spark plugs, or other malfunctions with the engine.
It is much more difficult to diagnose an incident that occurs intermit-
tently rather than continuously. Most intermittent incidents are
caused by poor electric connections or improper wiring. In this case,
careful checking of suspected circuits may help prevent the replace-
ment of good parts.
A visual check only may not find t he cause of the incidents. A road
test with CONSULT-III (or GST) or a circuit tester connected should
be performed. Follow the Work Flow on "WORK FLOW".
Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a driveability complaint. The cus-
tomer can supply good information about such incidents, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A Diagnostic Worksheet like the example
on "Worksheet Sample" should be used.
Start your diagnosis by looking for conventional malfunctions first.
This will help troubleshoot driveability malfunctions on an electroni-
cally controlled engine vehicle.
WORK FLOW MEF036D
SEF233G
SEF234G

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• When there is an open circuit on MIL circuit, the ECM c
annot warn the driver by lighting up MIL when there
is malfunction on engine control system.
Therefore, when electrical controlled throttle and pa rt of ECM related diagnoses are continuously detected
as NG for 5 trips, ECM warns the driver that engine control system malfunctions and MIL circuit is open by
means of operating fail-safe function.
The fail-safe function also operates when above diagnos es except MIL circuit are detected and demands the
driver to repair the malfunction.
Symptom Matrix Chart INFOID:0000000004537054
SYSTEM — BASIC ENGINE CONTROL SYSTEM P0117
P0118 Engine coolant temperature
sensor circuit Engine coolant temperature will be determined by ECM based on the following condi-
tion.
CONSULT-III displays the engine coolant temperature decided by ECM.
Condition Engine coolant temperature decided
(CONSULT-III display)
Just as ignition switch is turned ON
or START 40
°C (104 °F)
Approx. 4 minutes or more after
engine sarting. 80
°C (176 °F)
Except as shown above 40 - 80
°C (104 - 176 °F)
(Depends on the time)
When the fail-safe system for engine coolant temperature sensor is activated, the cool-
ing fan operates while engine is running.
P0122
P0123
P0222
P0223
P2135 Throttle position sensor The ECM controls the electric throttle control actuator in regulating the throttle opening
in order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor.
P0643 Sensor power supply ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P2100
P2103 Throttle control relay ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2101 Electric throttle control func- tion ECM stops the electric throttle control actuator control, throttle valve is maintained at a
fixed opening (approx. 5 degrees) by the return spring.
P2118 Throttle control motor ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring.
P2119 Electric throttle control actu- ator (When electric throttle control actuator does not function properly due to the return
spring malfunction:)
ECM controls the electric throttle actuator by regulating the throttle opening around the
idle position. The engine speed will not rise more than 2,000 rpm.
(When throttle valve opening angle in fail-safe mode is not in specified range:)
ECM controls the electric throttle control ac tuator by regulating the throttle opening to
20 degrees or less.
(When ECM detects the throttle valve is stuck open:)
While the vehicle is driving, it slows down gradually by fuel cut. After the vehicle stops,
the engine stalls.
The engine can restart in N or P (A/T, CVT), Neutral (M/T) position, and engine speed
will not exceed 1,000 rpm or more.
P2122
P2123
P2127
P2128
P2138 Accelerator pedal position
sensor The ECM controls the electric throttle control actuator in regulating the throttle opening
in order for the idle position to be within +10 degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal
condition.
So, the acceleration will be poor.
DTC No. Detected items Engine operating condition in fail-safe mode
Engine operating condition in fail-safe mode Engine speed will not rise more than 2,500 rpm due to the fuel cut

Fuel pressure regulator system 3 3 4 4 4 4 4 4 4 4
EC-574Fuel injector circuit 1 1 2 3 2 2 2 2
EC-986Evaporative emission system 3 3 4 4 4 4 4 4 4 4
EC-527Air Positive crankcase ventilation sys-
tem 3 34 4 4 4 4 4 4 4 1
EC-538Incorrect idle speed adjustment 1 1 1 1 1
EC-566Electric throttle control actuator 1 1 2 3 3 2 2 2 2 2 2
EC-929 ,
EC-940 Ignition Incorrect ignition timing adjustment 3 3 1 1 1 1 1 1
EC-566Ignition circuit 1 1 2 2 2 2 2 2
EC-996Main power supply and ground circuit 2 2 3 3 3 3 3 2 3
EC-627Mass air flow sensor circuit
1
1 2 2
2 2 2 2 EC-655 ,
EC-663 Engine coolant temperature sensor circuit
33 3
EC-674 ,
EC-684 Air fuel ratio (A/F) sensor 1 circuit
EC-692 ,
EC-698 ,
EC-704 ,
EC-710 ,
EC-966 Throttle position sensor circuit
2 2EC-679 ,
EC-760 ,
EC-895 ,
EC-897 ,
EC-954 Accelerator pedal position sensor circuit 3 2 1
EC-874 ,
EC-942 ,
EC-947 ,
EC-959 Knock sensor circuit 2 3
EC-771Crankshaft position sensor (POS) circuit 2 2
EC-775Camshaft position sens
or (PHASE) circuit 3 2 EC-781Vehicle speed signal circuit 2 3 3 3
EC-866ECM 2 2 3 3 3 3 3 3 3 3 3
EC-872

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1 - 6: The numbers refer to the order of inspection.
(continued on next page)
SYSTEM — ENGINE MECHANICAL & OTHER Intake valve timing control solenoid valve cir-
cuit 3 2 1 3 2 2 3 3
EC-650Park/neutral position (P
NP) switch circuit 3 3 3 3 3 EC-879Refrigerant pressure sensor circuit 2 3 3 4
EC-1005Electrical load signal circuit 3
EC-984Air conditioner circuit 2 2 3 3 3 3 3 3 3 3 2
MTC-22ABS actuator and electric unit (control unit) 4
BRC-8SYMPTOM
Reference
pageHARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel tank 5
5 FL-9Fuel piping 5 5 5 5 5 5
EM-156Vapor lock
—
Valve deposit 5 5 5 5 5 5 5 —
Poor fuel (Heavy weight gasoline,
Low octane) —

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1 - 6: The numbers refer to the order of inspection.
Cooling Radiator/Hose/Radiator filler cap
5 5 5 5 5 5 5 4 5 CO-38Thermostat
5CO-45 Water control valve
CO-47Water pump
CO-43Water gallery
CO-34Cooling fan
5CO-42 Coolant level (Low)/Contaminat-
ed coolant CO-35NVIS (NISSAN Vehicle
Immobilizer System-
NATS) 1 1
BL-248 SYMPTOM
Reference
pageHARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA

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50 W Heated oxygen sensor 2
[Engine is running]
• Revving engine from idle to 3,000 rpm quickly after the following conditions are
met.
- Engine: After warming up
- Keeping the engine speed between 3,500
and 4,000 rpm for 1 minute and at idle for 1
minute under no load. 0 - Approximately 1.0V
51 O Sensor ground
(EVAP control system pres-
sure sensor) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
52 LG Sensor ground
(Mass air flow sensor) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
53 B A/F sensor 1 [Ignition switch: ON]Approximately 2.2V
55 O Sensor ground
(Intake air temperature sen-
sor) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
59 O Sensor ground
(Heated oxygen sensor 2) [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
61 W Crankshaft position sensor
(POS) [Engine is running]
• Warm-up condition
• Idle speed NOTE:
The pulse cycle changes depending on rpm
at idle. Approximately 4.0V
[Engine is running]
• Engine speed: 2,000 rpm Approximately 4.0V
62 R Sensor ground
[Crankshaft position sensor
(POS)] [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
63 BR Sensor ground
[Camshaft position sensor
(PHASE)] [Engine is running]
• Warm-up condition
• Idle speed Approximately 0V
TERMI-
NAL
NO. WIRE
COLOR ITEM CONDITION DATA (DC Voltage)

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Item
DIAGNOSTIC TEST MODE
WORK SUP-
PORT SELF DIAGNOSTIC
RESULT DATA
MONI-
TOR ACTIVE
TEST DTC & SRT
CONFIRMATION
DTC* 1 FREEZE
FRAME
DATA* 2 SRT
STATUS DTC
WORK
SUP-
PORTENGINE CONTROL COMPONENT PARTS
INPUT
Crankshaft position sensor (POS) × × ×
Camshaft position sensor (PHASE) × × ×
Mass air flow sensor × ×
Engine coolant temperature sensor × × × ×
Air fuel ratio (A/F) sensor 1 × × × ×
Heated oxygen sensor 2 × × × ×
Vehicle speed signal × × ×
Accelerator pedal position sensor × ×
Throttle position sensor × × ×
Fuel tank temperature sensor × × ×
EVAP control system pressure sen-
sor × ×
Intake air temperature sensor × × ×
Knock sensor ×
Refrigerant pressure sensor ×
Closed throttle position switch (Ac-
celerator pedal position sensor sig-
nal) ×
Air conditioner switch ×
Park/neutral position (PNP) switch × ×
Stop lamp switch × ×
Battery voltage ×
Load signal ×
Fuel level sensor × ×
ASCD steering switch × ×
ASCD brake switch × ×
ASCD clutch switch × ×
Power steering operation signal ×