2010 NISSAN LATIO Service Repair Manual

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Page 1953 of 3745

NISSAN LATIO 2010 Service Repair Manual EC-688
< SERVICE INFORMATION >[MR18DE]
DTC P0117, P0118 ECT SENSOR
Wiring Diagram
INFOID:0000000005532512
Diagnosis ProcedureINFOID:0000000005532513
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch

Page 1954 of 3745

NISSAN LATIO 2010 Service Repair Manual DTC P0117, P0118 ECT SENSOREC-689
< SERVICE INFORMATION > [MR18DE]
C
D
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G H
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EC
NP
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OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
2.CHECK ECT SENSOR POWER SUPPLY C

Page 1955 of 3745

NISSAN LATIO 2010 Service Repair Manual EC-690
< SERVICE INFORMATION >[MR18DE]
DTC P0117, P0118 ECT SENSOR
Refer to
EC-684, "Component Inspection".
OK or NG
OK >> GO TO 5.
NG >> Replace engine coolant temperature sensor.
5.CHECK INTERMITTE

Page 1956 of 3745

NISSAN LATIO 2010 Service Repair Manual DTC P0122, P0123 TP SENSOR
EC-691
< SERVICE INFORMATION > [MR18DE]
C
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M A
EC
NP
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DTC P0122, P0123 TP SENSOR
Component DescriptionINFOID:0000000005532516
Electric throttle control act

DTC P0122, P0123 TP SENSOR
EC-691
< SERVICE INFORMATION > [MR18DE]
C
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EC
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DTC P0122, P0123 TP SENSOR
Component DescriptionINFOID:0000000005532516
Electric throttle control actuator
consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has two sensors. These sensors are a
kind of potentiometers which transform the throttle valve position into
output voltage, and emit the voltage signal to the ECM. In addition,
these sensors detect the opening and closing speed of the throttle
valve and feed the voltage signals to the ECM. The ECM judges the
current opening angle of the throttle valve from these signals and the
ECM controls the throttle control motor to make the throttle valve
opening angle properly in response to driving condition.
CONSULT-III Reference Val ue in Data Monitor ModeINFOID:0000000005532517
Specification data are reference values.
*: Throttle position sensor 2 signal is converted by ECM internally. Thus, it differs from ECM terminal voltage signal.
On Board Diagnosis LogicINFOID:0000000005532518
These self-diagnoses have the on e trip detection logic.
NOTE:
If DTC P0122 or P0123 is displayed with DTC P0643, first perform the tro\
uble diagnosis for DTC P0643.
Refer to EC-896
.
FA I L - S A F E M O D E
When the malfunction is detected, ECM ent ers fail-safe mode and the MIL lights up.
DTC Confirmation ProcedureINFOID:0000000005532519
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8 V at idle.
1. Start engine and let it idle for 1 second.
2. Check DTC.
3. If DTC is detected, go to EC-693, "
Diagnosis Procedure".
PBIB0145E
Monitor item Condition Specification
TP SEN 1-B1
TP SEN 2-B1* • Ignition switch: ON
(Engine stopped)
• Shift lever: D (A/T, CVT),
1st (M/T) Accelerator pedal: Fully released
More than 0.36 V
Accelerator pedal: Fully depressed Less than 4.75 V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0122
0122 Throttle position sensor
2 circuit low input An excessively low voltage from the TP sensor
2 is sent to ECM.
• Harness or connectors
(TP sensor 2 circuit is open or shorted.)
• Electric throttle control actuator (TP sensor 2)
P0123
0123 Throttle position sensor
2 circuit high input An excessively high voltage from the TP sensor
2 is sent to ECM.
Engine operation condition in fail-safe mode
The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10
degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal condition.
So, the acceleration will be poor.
Revision: January 20102010 Versa

Page 1957 of 3745

NISSAN LATIO 2010 Service Repair Manual EC-692
< SERVICE INFORMATION >[MR18DE]
DTC P0122, P0123 TP SENSOR
Wiring Diagram
INFOID:0000000005532520
Specification data are reference values and are measured between each terminal and ground.
CAUT

Page 1958 of 3745

NISSAN LATIO 2010 Service Repair Manual DTC P0122, P0123 TP SENSOR
EC-693
< SERVICE INFORMATION > [MR18DE]
C
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G H
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K L
M A
EC
NP
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Diagnosis ProcedureINFOID:0000000005532521
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2.

Page 1959 of 3745

NISSAN LATIO 2010 Service Repair Manual EC-694
< SERVICE INFORMATION >[MR18DE]
DTC P0122, P0123 TP SENSOR
1. Disconnect electric throttle control actuator (1) harness connec-
tor.
- : Vehicle front
2. Turn ignition switch ON.
3. Check volta

Page 1960 of 3745

NISSAN LATIO 2010 Service Repair Manual DTC P0122, P0123 TP SENSOR
EC-695
< SERVICE INFORMATION > [MR18DE]
C
D
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K L
M A
EC
NP
O
>>
INSPECTION END
7.CHECK INTERMITTENT INCIDENT
Refer to EC-632
.
>> INSPECTION END
Component Inspec

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