O2 sensor NISSAN LATIO 2010 Service Repair Manual

EC-372
< COMPONENT DIAGNOSIS >[HR16DE]
P1715 INPUT SPEED SENSOR
(PRIMARY SPEED SENSOR)
P1715 INPUT SPEED SENSOR (PRIMARY SPEED SENSOR)
DescriptionINFOID:0000000005398540
ECM receives input speed sensor signal from TCM via the CAN communication line. ECM uses this signal for
engine control.
DTC LogicINFOID:0000000005398541
DTC DETECTION LOGIC
NOTE:
• If DTC P1715 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC U1000,XXXX.
• If DTC P1715 is displayed with DTC P0335, first perform the trouble diagno sis for DTC P0335. Refer
to EC-257, "
DTC Logic".
• If DTC P1715 is displayed with DTC P0340, first perform the trouble diagno sis for DTC P0340. Refer
to EC-262, "
DTC Logic".
• If DTC P1715 is displayed with DTC P0605, first perform the trouble diagno sis for DTC P0605. Refer
to EC-349, "
DTC Logic".
• If DTC P1715 is displayed with DTC P0607, first perform the trouble diagno sis for DTC P0607. Refer
to EC-351, "
DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and drive the vehicle at more t han 50 km/h (31 MPH) for at least 5 seconds.
CAUTION:
Always drive vehicle at a safe speed.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-372, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000005398542
1.CHECK DTC WITH TCM
Check DTC with TCM. Refer to AT-39, "
OBD-II Diagnostic Trouble Code (DTC)".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform trouble shooting relevant to DTC indicated.
2.REPLACE TCM
Replace TCM.
>> INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1715 Input speed sensor
(TCM output) Input speed sensor signal is different from
the theoretical value calculated by ECM
from secondary speed sensor signal and
engine rpm signal. • Harness or connectors
(The CAN communication line is open or short-
ed)
• Harness or connectors
(Input speed sensor circuit is open or shorted)
•TCM
Revision: January 20102010 Versa

P2101 ELECTRIC THROTTLE CONTROL FUNCTIONEC-381
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P2101 ELECTRIC THROTTLE CONTROL FUNCTION
DescriptionINFOID:0000000005398552
Electric throttle control actuator consists of throttle control mo
tor, throttle position sensor, etc.
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feed-
back to the ECM. ECM controls the throttle valve opening angle in response to driving condition via the throttle
control motor.
DTC LogicINFOID:0000000005398553
DTC DETECTION LOGIC
NOTE:
• If DTC P2101 is displayed with DT C P2100, first perform the trouble diagnosis for DTC P2100. Refer
to EC-377, "
DTC Logic".
• If DTC P2101 is displayed with DTC P2119, first pe rform the trouble diagnosis for DTC P2119. Refer
to EC-390, "
DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
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 11 V when
engine is running.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON and wait at least 2 seconds.
2. Start engine and let it idle for 5 seconds.
3. Check DTC.
Is DTC detected?
YES >> Go to EC-382, "Diagnosis Procedure".
NO >> INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2101 Electric throttle control
performance Electric throttle control function does not
operate properly. • Harness or connectors
(Throttle control motor circuit is open or shorted)
• Electric throttle control actuator
Revision: January 20102010 Versa

EC-386
< COMPONENT DIAGNOSIS >[HR16DE]
P2118 THROTTLE CONTROL MOTOR
P2118 THROTTLE CONTROL MOTOR
DescriptionINFOID:0000000005398558
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The current opening angle of the throttle valve is detected
by the throttle position sensor and it provides feed-
back to the ECM. ECM controls the throttle valve openi ng angle in response to driving conditions via the throt-
tle control motor.
DTC LogicINFOID:0000000005398559
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON and wait at least 2 seconds.
2. Start engine and let it idle for 5 seconds.
3. Check DTC.
Is DTC detected?
YES >> Go to EC-387, "Diagnosis Procedure".
NO >> INSPECTION END
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2118 Throttle control motor
circuit short ECM detects short in both circuits between
ECM and throttle control motor. • Harness or connectors
(Throttle control motor circuit is shorted.)
• Electric throttle control actuator
(Throttle control motor)
Revision: January 20102010 Versa

EC-390
< COMPONENT DIAGNOSIS >[HR16DE]
P2119 ELECTRIC THROTTLE CONTROL ACTUATOR
P2119 ELECTRIC THROTTLE CONTROL ACTUATOR
DescriptionINFOID:0000000005398564
Electric throttle control actuator consists of th
rottle control motor, throttle position sensor, etc.
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The throttle position sensor detects the throttle valv e position, and feeds the voltage signal to the ECM. The
ECM judges the current opening angle of the throttle valve and controls the throttle valve opening angle in
response to driving conditions via the throttle control motor.
DTC LogicINFOID:0000000005398565
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A AND B
1. Turn ignition switch ON and wait at least 1 second.
2. Set selector lever to D (A/T) or 1st (M/T) position and wait at least 3 seconds.
3. Set selector lever to P (A/T) or Neutral (M/T) position.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Turn ignition switch ON and wait at least 1 second.
6. Set selector lever to D (A/T) or 1st (M/T) position and wait at least 3 seconds.
7. Set selector lever to P (A/T) or Neutral (M/T) position.
8. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
9. Check DTC.
Is DTC detected?
YES >> Go to EC-390, "Diagnosis Procedure".
NO >> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION C
1. Turn ignition switch ON and wait at least 1 second.
2. Set selector lever to D (A/T) or 1st (M/T) position and wait at least 3 seconds.
3. Set selector lever to P (A/T) or Neutral (M/T) position.
4. Start engine and let it idle for 3 seconds.
5. Check DTC.
Is DTC detected?
YES >> Go to EC-390, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000005398566
1.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1. Turn ignition switch OFF.
2. Remove the intake air duct.
DTC No. Trouble diagnosis name DTC detecting conditionPossible cause
P2119 Electric throttle control
actuator A
Electric throttle control actuator does not function
properly due to the return spring malfunction.
• Electric throttle control actuator
B Throttle valve opening angle in fail-safe mode is
not in specified range.
C ECM detect the throttle valve is stuck open.
Revision: January 20102010 Versa

EC-392
< COMPONENT DIAGNOSIS >[HR16DE]
P2122, P2123 APP SENSOR
P2122, P2123 APP SENSOR
DescriptionINFOID:0000000005398568
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelera-
tor position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometer which transform the accelerator pedal
position into output voltage, and emit the voltage signal to the ECM.
The ECM judges the current opening angle of the accelerator pedal
from these signals and controls the throttle control motor based on
these signals.
Idle position of the accelerator pedal is determined by the ECM
receiving the signal from the accelerator pedal position sensor. The
ECM uses this signal for the engine operation such as fuel cut.
DTC LogicINFOID:0000000005398569
DTC DETECTION LOGIC
NOTE:
If DTC P2122 or P2123 is displayed with DTC P0643, first perform the tro\
ubl
e diagnosis for DTC P0643.
Refer to EC-352, "
DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
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.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for 1 second.
2. Check DTC.
Is DTC detected?
YES >> Go to EC-393, "Diagnosis Procedure".
NO >> INSPECTION END
PBIB1741E
DTC No. Trouble diagnosis name DTC detecting conditionPossible cause
P2122 Accelerator pedal position
sensor 1 circuit low input An excessively low
voltage from the APP
sensor 1 is sent to ECM. • Harness or connectors
(APP sensor 1 circuit is open or shorted.)
• Accelerator pedal position sensor
(APP sensor 1)
P2123 Accelerator pedal position
sensor 1 circuit high input An excessively high voltage from the APP
sensor 1 is sent to ECM.
Revision: January 20102010 Versa

P2122, P2123 APP SENSOREC-393
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Wiring DiagramINFOID:0000000005398570
Diagnosis ProcedureINFOID:0000000005398571
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connections E15, E24. Refer to EC-119, "
Ground Inspection".
Is the inspection result normal?
BBWA2652E
Revision: January 20102010 Versa

EC-394
< COMPONENT DIAGNOSIS >[HR16DE]
P2122, P2123 APP SENSOR
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between APP sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK APP SENSOR 1 GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between APP sens or harness connector and ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK APP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check the continuity between APP sens or harness connector and ECM harness connector.
2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 5.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK APP SENSOR
Refer to EC-395, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 7.
NO >> GO TO 6.
6.REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Perform EC-395, "
Special Repair Requirement".
>> INSPECTION END
7.CHECK INTERMITTENT INCIDENT
APP sensor Ground Voltage
Connector Terminal
E12 4 Ground Approx. 5 V
PBIA9606J
APP sensor ECM
Continuity
Connector Terminal Connector Terminal
E12 2 E16 111 Existed
APP sensor ECM
Continuity
Connector Terminal Connector Terminal
E12 3 E16 110 Existed
Revision: January 20102010 Versa

P2122, P2123 APP SENSOREC-395
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Refer to
EC-114, "Diagnosis Procedure".
>> INSPECTION END
Component InspectionINFOID:0000000005398572
1.CHECK ACCELERATOR PEDAL POSITION SENSOR
1. Reconnect all harness connectors disconnected.
2. Turn ignition switch ON.
3. Check the voltage between ECM harness connector and ground.
Is the inspection result normal?
YES >> INSPECTION END
NO >> GO TO 2.
2.REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal assembly.
2. Perform EC-395, "
Special Repair Requirement".
>> INSPECTION END
Special Repair RequirementINFOID:0000000005398573
1.PERFORM ACCELERATOR PEDAL RE LEASED POSITION LEARNING
Refer to EC-25, "
ACCELERATOR PEDAL RELEASED POSITION LEARNING : Special Repair Requirement".
>> GO TO 2.
2.PERFORM THROTTLE VALVE CL OSED POSITION LEARNING
Refer to EC-25, "
THROTTLE VALVE CLOSED POSITION L EARNING : Special Repair Requirement".
>> GO TO 3.
3.PERFORM IDLE AIR VOLUME LEARNING
Refer to EC-26, "
IDLE AIR VOLUME LEARNING : Special Repair Requirement".
>> END
ECM Ground Condition Voltage
Connector Terminal
E16 11 0
(APP sensor 1 signal) GroundAccelerator
pedal Fully released 0.6 - 0.9 V
Fully depressed 3.9 - 4.7 V
103
(APP sensor 2 signal) Fully released 0.3 - 0.6 V
Fully depressed 1.95 - 2.4 V
PBIA9572J
Revision: January 20102010 Versa

EC-396
< COMPONENT DIAGNOSIS >[HR16DE]
P2127, P2128 APP SENSOR
P2127, P2128 APP SENSOR
DescriptionINFOID:0000000005398574
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelera-
tor position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometer which transform the accelerator pedal
position into output voltage, and emit the voltage signal to the ECM.
The ECM judges the current opening angle of the accelerator pedal
from these signals and controls the throttle control motor based on
these signals.
Idle position of the accelerator pedal is determined by the ECM
receiving the signal from the accelerator pedal position sensor. The
ECM uses this signal for the engine operation such as fuel cut.
DTC LogicINFOID:0000000005398575
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
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.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and let it idle for 1 second.
2. Check DTC.
Is DTC detected?
YES >> Go to EC-397, "Diagnosis Procedure".
NO >> INSPECTION END
PBIB1741E
DTC No. Trouble diagnosis name DTC detecting conditionPossible cause
P2127 Accelerator pedal position
sensor 2 circuit low input An excessively low voltage from the APP
sensor 2 is sent to ECM. • Harness or connectors
(APP sensor 2 circuit is open or shorted.)
[Crankshaft position sensor (POS) circuit
is shorted.]
(Refrigerant pressure sensor circuit is
shorted.)
(EVAP control system pressure sensor
circuit is shorted.)
• Accelerator pedal position sensor (APP sensor 2)
• Crankshaft position sensor (POS)
• Refrigerant pressure sensor
• EVAP control system pressure sensor
P2128
Accelerator pedal position
sensor 2 circuit high input An excessively high
voltage from the APP
sensor 2 is sent to ECM.
Revision: January 20102010 Versa

P2127, P2128 APP SENSOREC-397
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Wiring DiagramINFOID:0000000005398576
Diagnosis ProcedureINFOID:0000000005398577
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connections E15, E24. Refer to EC-119, "
Ground Inspection".
Is the inspection result normal?
BBWA3074E
Revision: January 20102010 Versa