2011 NISSAN LATIO transmission

DI-38
< SERVICE INFORMATION >
CVT INDICATOR
CVT INDICATOR
System DescriptionINFOID:0000000005929187
The TCM receives CVT indicator signals from the transmission range switch. The TCM then sends CVT posi-
tion indicator signals to the combination meter via CAN communication lines. The combination meter indicates
the received shift position.
SchematicINFOID:0000000005929188
ABNWA0597GB
Revision: May 2010 2011 Versa

DI-42
< SERVICE INFORMATION >
CVT INDICATOR
Perform self-diagnosis of combination meter. Refer to DI-11, "Self-
Diagnosis Mode of Combination Meter".
Are all segments displayed?
YES >> GO TO 2.
NO >> Replace combination meter. Refer to IP-12, "
Removal
and Installation".
2.CHECK COMBINATION METER (CONSULT-III)
1. Connect CONSULT-III.
2. Select “METER/M&A” on CONSULT- III, and perform self-diagnosis of combination meter. Refer to DI-13,
"CONSULT-III Function (METER/M&A)".
Self
-diagnostic results content
No malfunction detected>> GO TO 3.
Malfunction detected>> Check applicable parts, and repair or replace as necessary.
3.CHECK COMBINATION METER INPUT SIGNAL
Use “DATA MONITOR” of “METER/M&A” on CONSULT-III. Confirm each indication on the monitor when oper-
ating the CVT selector lever.
OK or NG
OK >> Replace combination meter. Refer to IP-12, "Removal and Installation".
NG >> GO TO 4.
4.CHECK SELF-DIAGNOSIS RESULTS OF TCM
Perform self-diagnosis of TCM. Refer to CVT-48, "
CONSULT-III Function (TRANSMISSION)".
OK or NG
OK >> Check TCM input/output signal. Repair or replace malfunctioning part, if necessary. Refer to CVT-
22, "Input/Output Signal of TCM".
NG >> Check applicable part, and repair or replace as necessary.
SKIB1206J
CONSULT-III dis-
play Switch operation
Operation status
P RANGE IND P range position
ON
Except for P range position OFF
R RANGE IND R range position
ON
Except for R range position OFF
N RANGE IND N range position
ON
Except for N range position OFF
D RANGE IND D range position
ON
Except for D range position OFF
L RANGE IND L range position
ON
Except for L range position OFF
Revision: May 2010 2011 Versa

EC-18
< BASIC INSPECTION >[HR16DE]
DIAGNOSIS AND REPAIR WORK FLOW
NO-1 >> No request for I/M examination from the custom
er: Before returning the vehicle to the customer,
always erase unnecessary DTC in ECM and TCM (Transmission Control Module). Refer to EC-
29, "Description".
NO-2 >> I/M examination, request ed from the customer: GO TO 13.
13.PREPARE FOR I/M EXAMINATION
1. Set SRT codes. Refer to EC-29, "
Description".
2. Erase permanent DTCs. Refer to EC-34, "
Description".
>> INSPECTION END
Diagnostic Work SheetINFOID:0000000005929745
DESCRIPTION
There are many operating conditions that lead to the malfunction of
engine components. A good grasp of such conditions can make trou-
bleshooting faster and more accurate.
In general, each customer feels differently about an incident. It is
important to fully understand the symptoms or conditions for a cus-
tomer complaint.
Utilize a diagnostic worksheet like the one on the WORKSHEET
SAMPLE in order to organize all the information for troubleshooting.
Some conditions may cause the MIL to come on steady or blink and
DTC to be detected. Examples:
• Vehicle ran out of fuel, which caused the engine to misfire.
• Fuel filler cap was left off or incorrectly screwed on, allowing fuel to evaporate into the atmosphere.
SEF907L
Revision: May 2010 2011 Versa

EC-26
< BASIC INSPECTION >[HR16DE]
INSPECTION AND ADJUSTMENT
• Each time electric throttle control actuator or ECM is replaced.
• Idle speed or ignition timing is out of specification.
IDLE AIR VOLUME LEARNING
: Special Repair RequirementINFOID:0000000005929760
1.PRECONDITIONING
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 - 100 °C (158 - 212° F)
• Selector lever: P or N (A/T), Neutral (M/T)
• Electric load switch: OFF (Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime light systems, if the parking brake is applied before the engine is
started the headlamp will not be illuminated.
• Steering wheel: Neutral (Straight-ahead position)
• Vehicle speed: Stopped
• Transmission: Warmed-up
- A/T models
• With CONSULT-III: Drive vehicle until “FLUID TEMP SE” in “DATA MONITOR” mode of “TRANSMISSION”
system indicates less than 0.9 V.
• Without CONSULT-III: Drive vehicle for 10 minutes.
- M/T models
• Drive vehicle for 10 minutes.
Do you have CONSULT-III?
YES >> GO TO 2.
NO >> GO TO 3.
2.IDLE AIR VOLUME LEARNING
With CONSULT-III
1. Perform Accelerator Pedal Released Position Learning. Refer to EC-25, "
ACCELERATOR PEDAL
RELEASED POSITION LEARNING : Special Repair Requirement".
2. Perform Throttle Valve Closed Position Learning. Refer to EC-25, "
THROTTLE VALVE CLOSED POSI-
TION LEARNING : Special Repair Requirement".
3. Start engine and warm it up to normal operating temperature.
4. Select “IDLE AIR VOL LEARN” in “WORK SUPPORT” mode.
5. Touch “START” and wait 20 seconds.
Is
“CMPLT” displayed on CONSULT-III screen?
YES >> GO TO 4.
NO >> GO TO 5.
3.IDLE AIR VOLUME LEARNING
Without CONSULT-III
NOTE:
• It is better to count the ti me accurately with a clock.
• It is impossible to switch the di agnostic mode when an accelerator pedal position sensor circuit has
a malfunction.
1. Perform Accelerator Pedal Released Position Learning. Refer to EC-25, "
ACCELERATOR PEDAL
RELEASED POSITION LEARNING : Special Repair Requirement".
2. Perform Throttle Valve Closed Position Learning. Refer to EC-25, "
THROTTLE VALVE CLOSED POSI-
TION LEARNING : Special Repair Requirement".
3. Start engine and warm it up to normal operating temperature.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Confirm that accelerator pedal is fully releas ed, turn ignition switch ON and wait 3 seconds.
6. Repeat the following procedure quickly five times within 5 seconds.
- Fully depress the accelerator pedal.
- Fully release the accelerator pedal.
7. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stops
blinking and turned ON.
8. Fully release the accelerator pedal within 3 seconds after the MIL turned ON.
Revision: May 2010 2011 Versa

MULTIPORT FUEL INJECTION SYSTEMEC-47
< FUNCTION DIAGNOSIS > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
MULTIPORT FUEL INJECTION SYSTEM
System DiagramINFOID:0000000005929767
System DescriptionINFOID:0000000005929768
INPUT/OUTPUT SIGNAL CHART
*1: This sensor is not used to control the engine system under normal conditions.
JMBIA2193GB
Sensor
Input signal to ECMECM functionActuator
Crankshaft position sensor (POS) Engine speed*
3
Piston position
Fuel injection
& mixture ratio
controlFuel injector
Camshaft position sensor (PHASE)
Mass air flow sensor
Amount of intake air
Intake air temperature sensor Intake air temperature
Engine coolant temperature sensor Engine coolant temperature
Air fuel ratio (A/F) sensor 1 Density of oxygen in exhaust gas
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Park/neutral position (PNP) switch (M/T)
Transmission range switch (A/T) Gear position
Battery Battery voltage*
3
Knock sensor Engine knocking condition
Heated oxygen sensor 2*
1Density of oxygen in exhaust gas
EPS control unit Power steering operation*
2
ABS actuator and electric unit (control unit)
Vehicle speed*2
Combination meter
BCMAir conditioner ON signal*
2
Revision: May 2010 2011 Versa

EC-56
< FUNCTION DIAGNOSIS >[HR16DE]
ELECTRIC IGNITION SYSTEM
ELECTRIC IGNITION SYSTEM
System DiagramINFOID:0000000005929771
System DescriptionINFOID:0000000005929772
INPUT/OUTPUT SIGNAL CHART
*1: This signal is sent to the ECM via the CAN communication line.
*2: ECM determines the start signal status by the signals of engine speed and battery voltage.
SYSTEM DESCRIPTION
Ignition order: 1 - 3 - 4 - 2
The ignition timing is controlled by the ECM to maintain
the best air-fuel ratio for every running condition of the
engine. The ignition timing data is stored in the ECM.
The ECM receives information such as the injection pulse width and camshaft position sensor (PHASE) sig-
nal. Computing this information, ignition si gnals are transmitted to the power transistor.
During the following conditions, the ignition timing is re vised by the ECM according to the other data stored in
the ECM.
• At starting
• During warm-up
• At idle
• At low battery voltage
• During acceleration
JMBIA2194GB
Sensor Input signal to ECMECM functionActuator
Crankshaft position sensor (POS) Engine speed*
2
Piston position
Ignition timing
controlIgnition coil (with power
transistor)
Camshaft position sensor (PHASE)
Mass air flow sensor
Amount of intake air
Engine coolant temperature sensor Engine coolant temperature
Throttle position sensor Throttle position
Accelerator pedal position sensor Accelerator pedal position
Battery Battery voltage*
2
Knock sensorEngine knocking
Park/neutral position (PNP) switch (M/T)
Transmission range switch (A/T) Gear position
ABS actuator and electric unit (control unit) Vehicle speed*
1Combination meter
Revision: May 2010 2011 Versa

EC-70
< FUNCTION DIAGNOSIS >[HR16DE]
CAN COMMUNICATION
CAN COMMUNICATION
System DescriptionINFOID:0000000005929779
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication s
peed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CA N communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
Refer to LAN-27, "
CAN Communication Signal Chart", about CAN communication for detail.
Revision: May 2010 2011 Versa

EC-114
< COMPONENT DIAGNOSIS >[HR16DE]
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
COMPONENT DIAGNOSIS
TROUBLE DIAGNOSIS - SPECIFICATION VALUE
DescriptionINFOID:0000000005929795
The specification (SP) value indicates the tolerance of
the value that is displayed in “SPEC” of “DATA MONI-
TOR” mode of CONSULT-III during normal operation of the Engine Control System. When the value in “SPEC”
of “DATA MONITOR” mode is within the SP value, the Engine Control System is confirmed OK. When the
value in “SPEC” of “DATA MONITOR” mode is NOT withi n the SP value, the Engine Control System may have
one or more malfunctions.
The SP value is used to detect malfunctions that may af fect the Engine Control System, but will not light the
MIL.
The SP value will be displayed for the following three items:
• B/FUEL SCHDL (The fuel injection pulse width progr ammed into ECM prior to any learned on board correc-
tion)
• A/F ALPHA-B1 (The mean value of air-fuel ratio feedback correction factor per cycle)
• MAS A/F SE-B1 (The signal voltage of the mass air flow sensor)
Component Function CheckINFOID:0000000005929796
1.START
Make sure that all of the following conditions are satisfied.
• Vehicle driven distance: More than 5,000 km (3,107 miles)
• Barometric pressure: 98.3 - 104.3 kPa (1.003 - 1.064 kg/cm
2, 14.25 - 15.12 psi)
• Atmospheric temperature: 20 - 30 °C (68 - 86° F)
• Engine coolant temperature: 75 - 95 °C (167 - 203° F)
• Transmission: Warmed-up
- A/T models: After the engine is warmed up to norma l operating temperature, drive vehicle until “FLUID
TEMP SE” (A/T fluid te mperature sensor signal) indicates more than 60 °C (140 °F).
- M/T models: After the engine is warmed up to normal operating temperature, drive vehicle for 5 minutes.
• Electrical load: Not applied
- Rear window defogger switch, air conditioner switch, lighting switch are OFF. Steering wheel is straight
ahead.
• Engine speed: Idle
>> GO TO 2.
2.PERFORM “SPEC” OF “DATA MONITOR” MODE
With CONSULT-III
NOTE:
Perform “SPEC” in “DATA MONITOR” mode in maximum scale display.
1. Perform EC-20, "
BASIC INSPECTION : Special Repair Requirement".
2. Select “B/FUEL SCHDL”, “A/F ALPHA-B1” and “MAS A/F SE-B1” in “SPEC” of “DATA MONITOR” mode
with CONSULT-III.
3. Make sure that monitor items are within the SP value.
Is the inspection result normal?
YES >> END
NO >> Go to EC-115, "
Diagnosis Procedure".
Revision: May 2010 2011 Versa