2008 NISSAN LATIO Service Repair Manual

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Page 1145 of 2771

NISSAN LATIO 2008 Service Repair Manual BASIC SERVICE PROCEDURE
EC-71
< SERVICE INFORMATION >
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With CONSULT-II
1. Start engine and warm it up to normal operating temperature.
2. Read idle speed in “DATA MON

Page 1146 of 2771

NISSAN LATIO 2008 Service Repair Manual EC-72
< SERVICE INFORMATION >
BASIC SERVICE PROCEDURE
>> GO TO 12.
12.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Perform EC-76, "
Throttle Valve Closed Position Learning".
>> GO TO 13.
13

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NISSAN LATIO 2008 Service Repair Manual BASIC SERVICE PROCEDURE
EC-73
< SERVICE INFORMATION >
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2. GO TO 4.
17.DETECT MALFUNCTIONING PART
Check the following.
• Check crankshaft position sensor (POS) and circ

Page 1148 of 2771

NISSAN LATIO 2008 Service Repair Manual EC-74
< SERVICE INFORMATION >
BASIC SERVICE PROCEDURE
1. Attach timing light to loop wire (1) as shown.
• : Vehicle front
2. Check ignition timing.
• Timing indicator (1)
Method B
1. Remove No. 4

Page 1149 of 2771

NISSAN LATIO 2008 Service Repair Manual BASIC SERVICE PROCEDURE
EC-75
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3. Check ignition timing.
• Timing indicator (1)
Procedure After Replacing ECMINFOID:0000000001702580
When repla

Page 1150 of 2771

NISSAN LATIO 2008 Service Repair Manual EC-76
< SERVICE INFORMATION >
BASIC SERVICE PROCEDURE
Accelerator Pedal Released Position Learning
INFOID:0000000001702582
DESCRIPTION
Accelerator Pedal Released Position Learning is an operation to l

EC-76
< SERVICE INFORMATION >
BASIC SERVICE PROCEDURE
Accelerator Pedal Released Position Learning
INFOID:0000000001702582
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 position sensor output signal. It must be performed each time
harness connector of accelerator pedal position 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:0000000001702583
DESCRIPTION
Throttle Valve Closed Position Learning is an operation to learn 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:0000000001702584
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 following conditions are missed for even a moment.
• Battery voltage: More than 12.9V (At idle)
• Engine coolant temperature: 70 - 95°C (158 - 203°F)
• Park/neutral position (PNP) switch: ON
• 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
- Models with CONSULT-II (A/T and CVT models)
• Drive vehicle until “FLUID TEMP SE” in “DATA MONITOR” mode of “A/T” or “CVT” system indicates less
than 0.9V.
- Models without CONSULT-II (A/T and CVT models) and M/T models
• Drive vehicle for 10 minutes.
OPERATION PROCEDURE
With CONSULT-II
1. Perform EC-76, "Accelerator Pedal Released Position Learning".
2. Perform EC-76, "
Throttle Valve Closed Position Learning".

Page 1151 of 2771

NISSAN LATIO 2008 Service Repair Manual BASIC SERVICE PROCEDURE
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3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic PRE

Page 1152 of 2771

NISSAN LATIO 2008 Service Repair Manual EC-78
< SERVICE INFORMATION >
BASIC SERVICE PROCEDURE
b. Fully release the accelerator pedal.
8. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL st

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