NISSAN LATIO 2011 Service Repair Manual

P0130 A/F SENSOR 1EC-187
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3. Shift the selector lever to the D position (A/T) or 1st position (M/T), then release the accelerator pedal fully
until the vehicle speed decreases to 50 km/h (31 MPH).
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
Never apply brake during releasing the accelerator pedal.
4. Repeat steps 2 to 3 for five times.
5. Stop the vehicle and turn ignition switch OFF.
6. Wait at least 10 seconds and restart engine.
7. Repeat steps 2 to 3 for five times.
8. Stop the vehicle.
9. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-188, "Diagnosis Procedure".
NO >> INSPECTION END
Revision: May 2010 2011 Versa

EC-188
< COMPONENT DIAGNOSIS >[HR16DE]
P0130 A/F SENSOR 1
Wiring Diagram
INFOID:0000000005929878
Diagnosis ProcedureINFOID:0000000005929879
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connections E15, E24. Refer to EC-127, "
Ground Inspection".
Is the inspection result normal?
AABWA0307GB
Revision: May 2010 2011 Versa

P0130 A/F SENSOR 1EC-189
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YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect A/F sensor 1 harness connector.
2. Turn ignition switch ON.
3. Check the voltage between A/F sensor 1 harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• IPDM E/R harness connector E45
• 10 A fuse (No. 54)
• Harness for open or short between A/F sensor 1 and fuse
>> Repair or replace harness or connectors.
4.CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between A/F sensor 1 harness connector and ECM harness connector.
4. Check the continuity between A/F sensor 1 harness connector and ground, or ECM harness connector
and ground.
5. Also check harness for 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 INTERMITTENT INCIDENT
Perform EC-122, "
Diagnosis Procedure".
A/F sensor 1
Ground Voltage
Connector Terminal
F12 4 Ground Battery voltage
PBIB3308E
A/F sensor 1 ECM
Continuity
Connector Terminal Connector Terminal
F12 1
F11 49
Existed
25 3
A/F sensor 1 Ground Continuity
Connector Terminal
F12 1
Ground Not existed
2
ECM Ground Continuity
Connector Terminal
F11 49
Ground Not existed
53
Revision: May 2010 2011 Versa

EC-190
< COMPONENT DIAGNOSIS >[HR16DE]
P0130 A/F SENSOR 1
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace.
6.REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace air fuel ratio (A/F) sensor 1. Refer to EM-30, "
Exploded View".
CAUTION:
• Discard any sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard
surface such as a concrete floor; use a new one.
• Before installing new sensor, clean exhaust system threads usi ng Oxygen Sensor Thread Cleaner
[commercial service tool (J-43897-18 or J43897-12)] and approved Anti-seize Lubricant (commercial
service tool).
>> INSPECTION END
Revision: May 2010 2011 Versa

P0131 A/F SENSOR 1EC-191
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P0131 A/F SENSOR 1
DescriptionINFOID:0000000006141187
The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sen-
sor. The sensor element of the A/F sensor 1 is composed an elec-
trode layer, which transports ions. It has a heater in the element.
The sensor is capable of precise m
easurement = 1, but also in the
lean and rich range. Together with its control electronics, the sensor
outputs a clear, continuous signal throughout a wide range.
The exhaust gas components diffuse through the diffusion layer at
the sensor cell. An electrode layer is applied voltage, and this current
relative oxygen density in lean. Also this current relative hydrocar-
bon density in rich.
Therefore, the A/F sensor 1 is able to indicate air fuel ratio by this
electrode layer of current. In addition, a heater is integrated in the
sensor to ensure the required operating temperature of about 800 °C
(1,472 °F).
DTC LogicINFOID:0000000005929881
DTC DETECTION LOGIC
To judge the malfunction, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1
signal is not inordinately low.
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 10.5 V at idle.
>> GO TO 2.
2.CHECK A/F SENSOR FUNCTION
With CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Select “A/F SEN1 (B1)” in “DAT A MONITOR” mode with CONSULT-III.
3. Check “A/F SEN1 (B1)” indication.
With GST
Follow the procedure “With CONSULT-III” above.
Is the indication constantly approx. 0 V?
JMBIA0112GB
PBIB3354E
DTC No. Trouble diagnosis name DTC detecting conditionPossible Cause
P0131 Air fuel ratio (A/F) sensor 1
circuit low voltage • The A/F signal computed by ECM from the A/F
sensor 1 signal is constantly approx. 0 V. • Harness or connectors
(The A/F sensor 1 circuit is open or
shorted.)
• A/F sensor 1
Revision: May 2010 2011 Versa

EC-192
< COMPONENT DIAGNOSIS >[HR16DE]
P0131 A/F SENSOR 1
YES >> Go to EC-193, "Diagnosis Procedure".
NO >> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-III
1. Turn ignition switch OFF, wait at least 10 seconds and then restart engine.
2. Drive and accelerate vehicle to more than 40 km/h (25 MPH) within 20 seconds after restarting engine. CAUTION:
Always drive vehicle at a safe speed.
3. Maintain the following conditions for about 20 consecutive seconds.
NOTE:
•Keep the accelerator pedal as steady as possible during the cruising.
• If this procedure is not completed within 1 minute af ter restarting engine at step 1, return to step
1.
4. Check 1st trip DTC.
With GST
Follow the procedure “With CONSULT-III” above.
Is 1st trip DTC detected?
YES >> Go to EC-193, "Diagnosis Procedure".
NO >> INSPECTION END
ENG SPEED 1,000 - 3,200 rpm
VHCL SPEED SE More than 40 km/h (25 mph)
B/FUEL SCHDL 1.5 - 9.0 msec
Selector lever Suitable position
Revision: May 2010 2011 Versa

P0131 A/F SENSOR 1EC-193
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Wiring DiagramINFOID:0000000006141190
Diagnosis ProcedureINFOID:0000000005929883
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connections E15, E24. Refer to EC-127, "
Ground Inspection".
Is the inspection result normal?
AABWA0307GB
Revision: May 2010 2011 Versa

EC-194
< COMPONENT DIAGNOSIS >[HR16DE]
P0131 A/F SENSOR 1
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect A/F sensor 1 harness connector.
2. Turn ignition switch ON.
3. Check the voltage between A/F sensor 1 harness connector and ground.
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 3.
3.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• IPDM E/R harness connector E45
• 10 A fuse (No. 54)
• Harness for open or short between A/F sensor 1 and fuse
>> Repair or replace harness or connectors.
4.CHECK A/F SENSOR 1 INPUT SIGN AL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between A/F sensor 1 harness connector and ECM harness connector.
4. Check the continuity between A/F sensor 1 harness connector and ground, or ECM harness connector
and ground.
5. Also check harness for 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 INTERMITTENT INCIDENT
A/F sensor 1 Ground Voltage
Connector Terminal
F12 4 Ground Battery voltage
PBIB3308E
A/F sensor 1 ECM
Continuity
Connector Terminal Connector Terminal
F12 1
F11 49
Existed
25 3
A/F sensor 1 Ground Continuity
Connector Terminal
F12 1
Ground Not existed
2
ECM Ground Continuity
Connector Terminal
F11 49
Ground Not existed
53
Revision: May 2010 2011 Versa

P0131 A/F SENSOR 1EC-195
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Perform
EC-122, "Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Repair or replace.
6.REPLACE AIR FUEL RATIO (A/F) SENSOR 1
Replace air fuel ratio (A/F) sensor 1. Refer to EM-30, "
Exploded View".
CAUTION:
• Discard any sensor which has been dropped from a he ight of more than 0.5 m (19.7 in) onto a hard
surface such as a concrete floor; use a new one.
• Before installing new sensor, clean exhaust syst em threads using Oxygen Sensor Thread Cleaner
[commercial service tool (J-43897-18 or J43897-12)] and approved Anti-seize Lubricant (commercial
service tool).
>> INSPECTION END
Revision: May 2010 2011 Versa

EC-196
< COMPONENT DIAGNOSIS >[HR16DE]
P0132 A/F SENSOR 1
P0132 A/F SENSOR 1
DescriptionINFOID:0000000006141188
The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sen-
sor. The sensor element of the
A/F sensor 1 is composed an elec-
trode layer, which transports ions. It has a heater in the element.
The sensor is capable of precise measurement = 1, but also in the
lean and rich range. Together with its control electronics, the sensor
outputs a clear, continuous signal throughout a wide range.
The exhaust gas components diffuse through the diffusion layer at
the sensor cell. An electrode layer is applied voltage, and this current
relative oxygen density in lean. Also this current relative hydrocar-
bon density in rich.
Therefore, the A/F sensor 1 is able to indicate air fuel ratio by this
electrode layer of current. In additi on, a heater is integrated in the
sensor to ensure the required operating temperature of about 800° C
(1,472° F).
DTC LogicINFOID:0000000005929885
DTC DETECTION LOGIC
To judge the malfunction, the diagnosis checks that t he A/F signal computed by ECM from the A/F sensor 1
signal is not inordinately high.
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 10.5 V at idle.
>> GO TO 2.
2.CHECK A/F SENSOR FUNCTION
With CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Select “A/F SEN1 (B1)” in “D ATA MONITOR” mode with CONSULT-III.
3. Check “A/F SEN1 (B1)” indication.
With GST
Follow the procedure “With CONSULT-III” above.
Is the indication constantly approx. 5 V?
JMBIA0112GB
PBIB3354E
DTC No. Trouble diagnosis name DTC detecting conditionPossible Cause
P0132 Air fuel ratio (A/F) sensor 1
circuit high voltage • The A/F signal computed by ECM from the A/F
sensor 1 signal is constantly approx. 5 V. • Harness or connectors
(The A/F sensor 1 circuit is open or
shorted.)
• A/F sensor 1
Revision: May 2010 2011 Versa