2011 NISSAN LATIO Service Repair Manual

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NISSAN LATIO 2011 Service Repair Manual DTC P0507 ISC SYSTEMEC-891
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DTC P0507 ISC SYSTEM
DescriptionINFOID:0000000006342068
NOTE:
If DTC P0507 is displayed with ot
her DTC, fir

DTC P0507 ISC SYSTEMEC-891
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DTC P0507 ISC SYSTEM
DescriptionINFOID:0000000006342068
NOTE:
If DTC P0507 is displayed with ot
her DTC, first perform the trouble diagnosis for the other DTC.
The ECM controls the engine idle speed to a specified level through the fine adjustment of the air, which is let
into the intake manifold, by operating the electric thrott le control actuator. The operating of the throttle valve is
varied to allow for optimum control of the engine id ling speed. The ECM calculates the actual engine speed
from signals of camshaft position sensor (POS) and camshaft position sensor (PHASE).
The ECM controls the electric throttle control actuator so that the engine speed coincides with the target value
memorized in the ECM. The target engine speed is the lowest speed at which the engine can operate steadily.
The optimum value stored in the ECM is determined by taking into consideration various engine conditions,
such as during warming up, deceleration, and engine load (air conditioner, power steering and cooling fan
operation, etc.).
On Board Diagnosis LogicINFOID:0000000006342069
DTC Confirmation ProcedureINFOID:0000000006342070
NOTE:
• If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
• If the target idle speed is ou t of the specified value, perform EC-580, "
Idle Air Volume Learning",
before conducting DTC Confirmation Procedure. For the target idle speed, refer to the EC-1035
.
TESTING CONDITION:
• Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
• Always perform the test at a temperature above −10° C (14° F).
1. Open engine hood.
2. Start engine and warm it up to normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start engine and run it for at least 1 minute at idle speed.
5. Check 1st trip DTC.
6. If 1st trip DTC is detected, go to EC-891, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006342071
1.CHECK PCV HOSE CONNECTION
Confirm that PCV hose is connected correctly.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace.
2.CHECK INTAKE AIR LEAK
1. Start engine and let it idle.
2. Listen for an intake air leak after the mass air flow sensor.
OK or NG
OK >> GO TO 3.
NG >> Discover air leak location and repair.
3.REPLACE ECM
1. Stop engine.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0507
0507 Idle speed control sys-
tem RPM higher than
expected The idle speed is more than the target idle
speed by 200 rpm or more. • Electric throttle control actuator
• Intake air leak
• PCV system
Revision: May 2010
2011 Versa

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NISSAN LATIO 2011 Service Repair Manual EC-892
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DTC P0507 ISC SYSTEM
2. Replace ECM.
3. Perform initialization of NVIS (NATS) system and
registration of all NVIS (NATS) ignition key IDs.
Refer to BL-247, "
EC

Page 2187 of 3787

NISSAN LATIO 2011 Service Repair Manual DTC P050A, P050B, P050E COLD START CONTROLEC-893
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DTC P050A, P050B, P050E COLD START CONTROL
DescriptionINFOID:0000000006342118
ECM cont

DTC P050A, P050B, P050E COLD START CONTROLEC-893
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DTC P050A, P050B, P050E COLD START CONTROL
DescriptionINFOID:0000000006342118
ECM controls ignition timing and engine idle speed when engine is started with prewarming up condition.
This control promotes the activation of three way catalyst by heating the catalyst and reduces emissions.
On Board Diagnosis LogicINFOID:0000000006342119
DTC Confirmation ProcedureINFOID:0000000006342120
NOTE:
• If DTC Confirmation Procedure has been previously conduc
ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
• If DTC P050A, P050B or P050E is displayed with ot her DTC, first perform the trouble diagnosis for
other DTC.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
1.PERFORM DTC CONFIRMATION PROCEDURE-I
WITH CONSULT-III
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Select “DATA MONITOR” mode with CONSULT-III.
4. Check the indication of “COOLAN TEMP/S”.
WITH GST
Follow the procedure “WITH CONSULT-III” above.
Is the value of
“COOLAN TEMP/S” between 20°C (68°F) and 36°C (97°F)?
YES >> GO TO 2.
NO-1 [If it is below 20° C (68°F)]>>Warm up the engine unit the value of “COOLAN TEMP/S” reaches 20 °C
(68 °F) or more. Retry from step 1.
NO-2 [If it is above 36 °C (97 °F)]>>Cool engine down to less than 36 °C (97° F). Retry from step 1.
2.PERFORM DTC CONFIRMATION PROCEDURE-II
WITH CONSULT-III
1. Set the select lever in N range.
2. Start the engine and warm up in idle with the value of “COOLAN TEMP/S”\
between 20 °C (68° F) and 40° C
(104° F) for more than 15 seconds.
3. Check 1st trip DTC.
WITH GST
Follow the procedure “WITH CONSULT-III” above.
Is 1st trip DTC detected?
YES >> Go to EC-894, "Diagnosis Procedure".
NO >> INSPECTION END
DTC No. Trouble diagnosis name DTC detecting conditionPossible cause
P050A
050A Cold start idle air control system
performance ECM does not control engine idle speed properly
when engine is started with pre-warming up con-
dition.
• Lack of intake air volume
• Fuel injection system
•ECM
P050B
050B
Cold start ignition timing perfor-
mance ECM does not control ignition timing properly
when engine is started with pre-warming up con-
dition.
P050E
050E Cold start engine exhaust temper-
ature too low The temperature of the catalyst inlet does not
rise to the proper temperature when the engine
is started with pre-warming up condition.
Revision: May 2010
2011 Versa

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NISSAN LATIO 2011 Service Repair Manual EC-894
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DTC P050A, P050B, P050E COLD START CONTROL
Diagnosis Procedure
INFOID:0000000006342121
1.PERFORM IDLE AIR VOLUME LEARNING
Perform EC-580, "
Idle Air Volume Lear

Page 2189 of 3787

NISSAN LATIO 2011 Service Repair Manual DTC P0605 ECMEC-895
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DTC P0605 ECM
Component DescriptionINFOID:0000000006342072
The ECM consists of a microcomputer and connectors for s

DTC P0605 ECMEC-895
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DTC P0605 ECM
Component DescriptionINFOID:0000000006342072
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The ECM controls the engine.
On Board Diagnosis LogicINFOID:0000000006342073
This self-diagnosis has one or two trip detection logic.
FA I L - S A F E M O D E
ECM enters fail-safe mode when malfunction A is detected.
DTC Confirmation ProcedureINFOID:0000000006342074
Perform PROCEDURE FOR MALFUNCTION A first. If th
e 1st trip DTC cannot be confirmed, perform
PROCEDURE FOR MALFUNCTION B. If there is no malfunction on PROCEDURE FOR MALFUNCTION
B, perform PROCEDURE FOR MALFUNCTION C.
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
PROCEDURE FOR MALFUNCTION A
1. Turn ignition switch ON.
2. Check 1st trip DTC.
3. If 1st trip DTC is detected, go to EC-896, "
Diagnosis Procedure".
PROCEDURE FOR MALFUNCTION B
1. Turn ignition switch ON and wait at least 1 second.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Check 1st trip DTC.
4. If 1st trip DTC is detected, go to EC-896, "
Diagnosis Procedure".
PROCEDURE FOR MALFUNCTION C
1. Turn ignition switch ON and wait at least 1 second.
2. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
3. Repeat step 2 for 32 times.
PBIA9222J
DTC No. Trouble diagnosis name DTC detecting conditionPossible cause
P0605
0605 Engine control module A) ECM calculation function is malfunctioning.
•ECM
B) ECM EEP-ROM system is malfunctioning.
C) ECM self shut-off function is malfunctioning.
Detected items Engine operation condition in fail-safe mode
Malfunction A • ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5
degrees) by the return spring.
• ECM deactivates ASCD operation.
Revision: May 2010 2011 Versa

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NISSAN LATIO 2011 Service Repair Manual EC-896
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DTC P0605 ECM
4. Check 1st trip DTC.
5. If 1st trip DTC is detected, go to
EC-896, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006342075
1.INSPECTI

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NISSAN LATIO 2011 Service Repair Manual DTC P0607 ECMEC-897
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DTC P0607 ECM
DescriptionINFOID:0000000006342076
CAN (Controller Area Network) is a serial communication line for r

DTC P0607 ECMEC-897
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DTC P0607 ECM
DescriptionINFOID:0000000006342076
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 speed 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 CAN 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.
On Board Diagnosis LogicINFOID:0000000006342077
This self-diagnosis has the one trip detection logic (A/T and CVT).
The MIL will not light up for this self-diagnosis (M/T).
DTC Confirmation ProcedureINFOID:0000000006342078
1. Turn ignition switch ON.
2. Check 1st trip DTC.
3. If 1st trip DTC is detected, go to EC-897, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006342079
1.INSPECTION START
1. Erase DTC.
2. Perform DTC Confirmation Procedure. See EC-897, "
DTC Confirmation Procedure".
3. Is the 1st trip DTC P0607 displayed again?
Ye s o r N o
Yes >> GO TO 2.
No >> INSPECTION END
2.REPLACE ECM
1. Replace ECM.
2. Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs.
Refer to BL-247, "
ECM Re-communicating Function".
3. Perform EC-580, "
VIN Registration".
4. Perform EC-580, "
Accelerator Pedal Released Position Learning".
5. Perform EC-580, "
Throttle Valve Closed Position Learning".
6. Perform EC-580, "
Idle Air Volume Learning".
>> INSPECTION END
DTC No. Trouble diagnosis name DTC detecting conditionPossible cause
P0607
0607 CAN communication bus
When detecting error during the initial diagno-
sis for CAN controller of each control unit. •ECM
Revision: May 2010
2011 Versa

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NISSAN LATIO 2011 Service Repair Manual EC-898
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DTC P0643 SENSOR POWER SUPPLY
DTC P0643 SENSOR POWER SUPPLY
On Board Diagn
osis LogicINFOID:0000000006342080
This self-diagnosis has the one trip detection logic

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