2010 NISSAN LATIO turn signal

ENGINE CONTROL SYSTEM SYMPTOMSEC-485
< SYMPTOM DIAGNOSIS > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
1 - 6: The numbers refer to the order of inspection.
(continued on next table)
SYSTEM — ENGINE MECHANICAL & OTHER
Crankshaft position sensor (POS) circuit 2 2
EC-257
Camshaft position sensor (PHASE) circuit 3 2EC-262
Vehicle speed signal circuit2 3 33EC-341
ECM 22333333333 EC-347EC-349
Intake valve timing control solenoid valve cir-
cuit32 13223 3
EC-138
PNP signal circuit3 3 3 33EC-356
Refrigerant pressure sensor circuit 233 4 EC-450
Electrical load signal circuit 3EC-421
Air conditioner circuit 223333333 3 2 MTC-23
ABS actuator and electric unit (control unit)4 BRC-10
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
Revision: January 20102010 Versa

EC-486
< SYMPTOM DIAGNOSIS >[HR16DE]
ENGINE CONTROL SYSTEM SYMPTOMS
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 A
A AB AC AD AE AF AG AH AJ AK AL AM HA
Fuel Fuel tank 5
5 FL-12
Fuel piping
5 5 5 5 5 5FL-5
Va p o r l o c k —
Valve deposit 5 555 55 5 —
Poor fuel (Heavy weight gas-
oline, Low octane) —
Air Air duct
55555 5 EM-26
Air cleaner
Air leakage from air duct
(Mass air flow sensor — elec-
tric throttle control actuator)
555 5
Electric throttle control actua-
tor
EM-28
Air leakage from intake mani-
fold/Collector/Gasket
Cranking Battery 111111
11
SC-5
Generator circuit
SC-21
Starter circuit3 SC-9
Signal plate6 EM-90
PNP switch (M/T)
Transmission range switch
(A/T)4
MT-13 (M/T)
AT- 9 4
(A/T)
Engine Cylinder head 55555 55 5 EM-73
Cylinder head gasket 4 3
Cylinder block
66666 66 64
EM-90
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Revision: January 20102010 Versa

AIR CONDITIONING CUT CONTROLEC-521
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
AIR CONDITIONING
CUT CONTROL
Input/Output Signal ChartINFOID:0000000005532384
*1: This signal is sent to the ECM through CAN communication line.
*2: ECM determines the start signal status by the signals of engine speed and battery voltage.
System DescriptionINFOID:0000000005532385
This system improves engine operation when the air conditioner is used.
Under the following conditions, the air conditioner is turned off.
• When the accelerator pedal is fully depressed.
• When cranking the engine.
• At high engine speeds.
• When the engine coolant temperature becomes excessively high.
• When operating power steering during low engine speed or low vehicle speed.
• When engine speed is excessively low.
• When refrigerant pressure is excessively low or high.
Sensor Input Signal to ECMECM functionActuator
Air conditioner switch Air conditioner ON signal*
1
Air conditioner
cut controlAir conditioner relay
Accelerator pedal position sensor
Accelerator pedal position
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE) Engine speed*
2
Engine coolant temperature sensor
Engine coolant temperature
Battery Battery voltage*
2
Refrigerant pressure sensorRefrigerant pressure
EPS control unit Power steering operation*
1
ABS actuator and electric unit (control unit)
Vehicle speed*1
Combination meter
Revision: January 20102010 Versa

EC-522
< SERVICE INFORMATION >[MR18DE]
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
AUTOMATIC SPEED CONTROL DEVICE (ASCD)
System DescriptionINFOID:0000000005532386
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM through CAN communication line.
BASIC ASCD SYSTEM
Refer to Owner's Manual for ASCD operating instructions.
Automatic Speed Control Device (ASCD) allows a driver to keep vehicle at predetermined constant speed
without depressing accelerator pedal. Driver can set
vehicle speed in advance between approximately 40 km/
h (25 MPH) and 144 km/h (89 MPH).
ECM controls throttle angle of electric thro ttle control actuator to regulate engine speed.
Operation status of ASCD is indicated by CRUISE indi cator and SET indicator in combination meter. If any
malfunction occurs in ASCD system, it automatically deactivates control.
NOTE:
Always drive vehicle in safe manner according to traffic conditions and obey all traffic laws.
SET OPERATION
Press MAIN switch. (The CRUISE indicator in combination meter illuminates.)
When vehicle speed reaches a desired speed between approximately 40 km/h (25 MPH) and 144 km/h (89
MPH), press SET/COAST switch. (Then SET indi cator in combination meter illuminates.)
ACCELERATE OPERATION
If the RESUME/ACCELERATE switch is depressed during cruise control driving, increase the vehicle speed
until the switch is released or vehicle speed reaches maximum speed controlled by the system.
And then ASCD will keep the new set speed.
CANCEL OPERATION
When any of following conditions exist, cruise operation will be canceled.
• CANCEL switch is pressed
• More than two switches at ASCD steering switch are pressed at the same time (Set speed will be cleared)
• Brake pedal is depressed
• Clutch pedal is depressed or gear position is changed to the neutral position (M/T models)
• Selector lever is changed to N, P, R position (A/T and CVT models)
• Vehicle speed decreased to 13 km/h (8 MPH) lower than the set speed
When the ECM detects any of the following conditions, the ECM will cancel the cruise operation and inform
the driver by blinking indicator lamp.
• Engine coolant temperature is slightly higher than the normal operating temperature, CRUISE lamp may
blink slowly.
When the engine coolant temperature decreases to the normal operating temperature, CRUISE lamp will
stop blinking and the cruise operation will be able to work by pressing SET/COAST switch or RESUME/
ACCELERATE switch.
• Malfunction for some self-diagnoses regarding ASCD control: SET lamp will blink quickly.
If MAIN switch is turned to OFF during ASCD is activated, all of ASCD operations will be canceled and vehicle
speed memory will be erased.
COAST OPERATION
Sensor Input signal to ECM ECM functionActuator
ASCD brake switch Brake pedal operation
ASCD vehicle speed controlElectric throttle control
actuator
Stop lamp switch
Brake pedal operation
ASCD clutch switch (M/T models) Clutch pedal operation
ASCD steering switch ASCD steering switch operation
Park/neutral position (PNP) signal Gear position
ABS actuator and electric unit (con-
trol unit) Vehicle speed*
Combination meter
TCM Powertrain revolution*
Revision: January 20102010 Versa

EC-580
< SERVICE INFORMATION >[MR18DE]
BASIC SERVICE PROCEDURE
5. Perform
EC-580, "Idle Air Volume Learning".
VIN RegistrationINFOID:0000000005532407
DESCRIPTION
VIN Registration is an operation to registering VIN in ECM. It must be performed each time ECM is replaced.
NOTE:
Accurate VIN which is registered in ECM ma y be required for Inspection & Maintenance (I/M).
OPERATION PROCEDURE
With CONSULT-III
1. Check the VIN of the vehicle and note it. Refer to GI-43, "Model Variation".
2. Turn ignition switch ON and engine stopped.
3. Select “VIN REGISTRATION ” in “WORK SUPPORT” mode.
4. Follow the instruction of CONSULT-III display.
Accelerator Pedal Released Position LearningINFOID:0000000005532408
DESCRIPTION
Accelerator Pedal Released Position Learning is an operation to learn the fully released position of the accel-
erator pedal by monitoring the accelerator pedal positi on sensor output signal. It must be performed each time
harness connector of accelerator pedal pos ition sensor or ECM is disconnected.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch ON and wait at least 2 seconds.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Turn ignition switch ON and wait at least 2 seconds.
5. Turn ignition switch OFF and wait at least 10 seconds.
Throttle Valve Closed Position LearningINFOID:0000000005532409
DESCRIPTION
Throttle Valve Closed Position Learning is an operation to l earn the fully closed position of the throttle valve by
monitoring the throttle position sensor output signal . It must be performed each time harness connector of
electric throttle control actuator or ECM is disconnected.
OPERATION PROCEDURE
1. Make sure that accelerator pedal is fully released.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds. Make sure that throttle valve moves during above 10 seconds by confirming the operating sound.
Idle Air Volume LearningINFOID:0000000005532410
DESCRIPTION
Idle Air Volume Learning is an operation to learn the idle air volume that keeps each engine within the specific
range. It must be performed under any of the following conditions:
• Each time electric throttle control actuator or ECM is replaced.
• Idle speed or ignition timing is out of specification.
PREPARATION
Before performing Idle Air Volume Learning, make sure that all of the following conditions are satisfied.
Learning will be cancelled if any of the follo wing conditions are missed for even a moment.
• Battery voltage: More than 12.9 V (At idle)
• Engine coolant temperature: 70 - 95 °C (158 - 203° F)
• Park/neutral position (PNP) switch (M/T): ON
Selector lever (A/T and CVT): P or N
Revision: January 20102010 Versa

TROUBLE DIAGNOSISEC-593
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
1 - 6: The numbers refer to the order of inspection.
(continued on next table)
SYSTEM — ENGINE MECHANICAL & OTHER
Camshaft position sensor (PHASE) circuit 3 2
EC-799
Vehicle speed signal circuit2 3 33EC-887
ECM 22333333333 EC-893
Intake valve timing control solenoid valve cir-
cuit32 13223 3
EC-659
Park/neutral position (PNP) signal circuit3 3 3 33EC-901
Refrigerant pressure sensor circuit 233 4 EC-1028
Electrical load signal circuit 3EC-1007
Air conditioner circuit 223333333 3 2 MTC-23
ABS actuator and electric unit (control unit)4 BRC-10
SYMPTOM
Reference
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
Revision: January 20102010 Versa

EC-594
< SERVICE INFORMATION >[MR18DE]
TROUBLE DIAGNOSIS
SYMPTOM
Reference
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-12
Fuel piping
5 5 5 5 55FL-5
Va p o r l o c k —
Valve deposit 5 555 55 5—
Poor fuel (Heavy weight gasoline,
Low octane) —
Air Air duct
55555 5 EM-135
Air cleaner
EM-135
Air leakage from air duct
(Mass air flow sensor — electric
throttle control actuator)
5555 EM-135
Electric throttle control actuator
EM-137
Air leakage from intake manifold/
Collector/GasketEM-137
Cranking Battery
111111
11
SC-7
Generator circuit
SC-22
Starter circuit3 SC-16
Signal plate6 EM-196
Park/neutral position (PNP)
switch (M/T)
Transmission range switch (A/T
or CVT)4
MT-57,
AT- 9 4
,
CVT-70
Engine Cylinder head 55555 55 5 EM-182
Cylinder head gasket 4 3
Cylinder block
66666 66 64
EM-196
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Revision: January 20102010 Versa

TROUBLE DIAGNOSISEC-607
< SERVICE INFORMATION > [MR18DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
15 Y Throttle control motor relay
[Ignition switch: OFF]
BATTERY VOLTAGE
(11 - 14 V)
[Ignition switch: ON] 0 - 1.0 V
17
18
21
22 R
LG
G
SB Ignition signal No. 1
Ignition signal No. 2
Ignition signal No. 4
Ignition signal No. 3 [Engine is running]
•
Warm-up condition
• Idle speed
NOTE:
The pulse cycle changes depending on rpm
at idle. 0 - 0.3 V
[Engine is running]
• Warm-up condition
• Engine speed: 2,500 rpm. 0.2 - 0.5 V
23 GR Fuel pump relay [Ignition switch: ON]
• For 1 second after turning ignition switch
ON
[Engine is running] 0 - 1.0 V
[Ignition switch: ON]
• More than 1 second after turning ignition switch ON BATTERY VOLTAGE
(11 - 14 V)
25
29
30
31 V
Y
O L Fuel injector No. 4
Fuel injector No. 3
Fuel injector No. 2
Fuel injector No. 1 [Engine is running]
•
Warm-up condition
• Idle speed NOTE:
The pulse cycle changes depending on rpm
at idle. BATTERY VOLTAGE
(11 - 14 V)
[Engine is running]
• Warm-up condition
• Engine speed: 2,000 rpm BATTERY VOLTAGE
(11 - 14 V)
28 W EVAP canister vent control
valve [Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14 V)
32 P ECM relay
(Self shut-off) [Engine is running]
[Ignition switch: OFF]
• For a few seconds after turning ignition
switch OFF 0 - 1.0 V
[Ignition switch: OFF]
• More than a few seconds after turning igni- tion switch OFF BATTERY VOLTAGE
(11 - 14 V)
Te r m i -
nal No. Wire
color Item
Condition Data (DC Voltage)
PBIA9265J
PBIA9266J
PBIB0529E
PBIA4943J
Revision: January 20102010 Versa