2009 NISSAN LATIO Service Repair Manual

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Page 1921 of 4331

NISSAN LATIO 2009 Service Repair Manual ON BOARD DIAGNOSTIC (OBD) SYSTEM
EC-565
< SERVICE INFOMATION >
[MR TYPE 1] C
D E
F
G H
I
J
K L
M A EC
NP
O
<Driving Pattern A>
• The A counter will be cleared when the malfunc tion is detected regar

Page 1922 of 4331

NISSAN LATIO 2009 Service Repair Manual EC-566< SERVICE INFOMATION >
[MR TYPE 1]
BASIC SERVICE PROCEDURE
BASIC SERVICE PROCEDURE
Basic Inspection INFOID:00000000045370431.
INSPECTION START
1. Check service records for any recent repairs tha

Page 1923 of 4331

NISSAN LATIO 2009 Service Repair Manual EC
NP
O
2. Rev engine (2,000 to 3,000 rpm) two or three times under no
load, then run engine at idle speed for about 1 minute.
3. Read idle speed in “DATA MONITOR” mode with CONSULT-III

Page 1924 of 4331

NISSAN LATIO 2009 Service Repair Manual OK >> GO TO 10.
NG >> GO TO 8. .
• Check camshaft position sensor (PHASE) and circuit.
Refer to EC-781 .
OK or NG OK >> GO TO 9.
NG >> 1. Repair or replace.
2. GO TO 4. ECM Re-communicating Functio

Page 1925 of 4331

NISSAN LATIO 2009 Service Repair Manual BASIC SERVICE PROCEDURE
EC-569
< SERVICE INFOMATION >
[MR TYPE 1] C
D E
F
G H
I
J
K L
M A EC
NP
O
Yes >> GO TO 14.
No >> 1. Follow the instruction of Idle Air Volume Learning. 2. GO TO 4. 14.
CHECK TA

Page 1926 of 4331

NISSAN LATIO 2009 Service Repair Manual ECM Re-communicating Function " .
>> GO TO 4. Yes >> 1. Perform
EC-572, " VIN Registration " .
2. INSPECTION END
No >> INSPECTION END
Idle Speed and Ignition Timing Check INFOID:0000000004537044
IDLE

Page 1927 of 4331

NISSAN LATIO 2009 Service Repair Manual EC
NP
O
• : Vehicle front
2. Connect No. 4 ignition coil (1) and No. 4 spark plug with suitable high-tension wire (A) as shown, and attach timing light clamp (B) to this wire.
•

Page 1928 of 4331

NISSAN LATIO 2009 Service Repair Manual Idle Air Volume Learning " .
VIN Registration INFOID:0000000004537046
DESCRIPTION
VIN Registration is an operation to registering VIN in ECM. It must be performed each time ECM is replaced.
NOTE:
Acc

Idle Air Volume Learning " .
VIN Registration INFOID:0000000004537046
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 .
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 Learning INFOID:0000000004537047
DESCRIPTION
Accelerator Pedal Released Position Learning is an operati on 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 Clos ed Position Learning INFOID:0000000004537048
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 Learning INFOID:0000000004537049
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 12.9V (At idle)
• Engine coolant temperature: 70 - 95 °C (158 - 203 °F)
• Park/neutral position (PNP) switch: ON
• Electric load switch: OFF

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