NISSAN LATIO 2009 Service Repair Manual

P0132 A/F SENSOR 1
EC-195
< COMPONENT DIAGNOSIS >
[HR16DE] C
D E
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G H
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K L
M A EC
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Wiring Diagram
INFOID:0000000004780711
Diagnosis Procedure INFOID:00000000047801161.
CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connections E15, E24. Refer to EC-125, " Ground Inspection " .
Is the inspection result normal? AABWA0307G B

EC-196< COMPONENT DIAGNOSIS >
[HR16DE]
P0132 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
2 53
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

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Perform
EC-120, " Diagnosis Procedure " .
Is the inspection result normal? YES >> GO TO 6.
NO >> Repair or replace.

EC-198< COMPONENT DIAGNOSIS >
[HR16DE]
P0133 A/F SENSOR 1
P0133 A/F SENSOR 1
Description INFOID:0000000004780117
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 Logic INFOID:0000000004780118
DTC DETECTION LOGIC
To judge the malfunction of A/F sensor 1, this diagnosis measures response time of the A/F signal computed
by ECM from the A/F sensor 1 signal. The time is compensated by engine operating (speed and load), fuel
feedback control constant, and the A/F sensor 1 temper ature index. Judgment is based on whether the com-
pensated time (the A/F signal cycling time index) is inordinately long or not.
DTC CONFIRMATION PROCEDURE 1.
PRECONDITIONING
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
Do you have CONSULT-III? YES >> GO TO 2.
NO >> GO TO 5. 2.
PERFORM DTC CONFIRMATION PROCEDURE-I JMBIA0112GB
PBIB3354E
DTC No. Trouble diagnosis name DTC detecting condition Possible Cause
P0133 Air fuel ratio (A/F) sensor
1 circuit slow response • The response of the A/F signal computed
by ECM from A/F sensor 1 signal takes
more than the specified time. • Harness or connectors
(The A/F sensor 1 circuit is open or shorted.)
• A/F sensor 1
• A/F sensor 1 heater
• Fuel pressure
• Fuel injector
• Intake air leaks
• Exhaust gas leaks
• PCV
• Mass air flow sensor

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With CONSULT-III
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1minute under no load.
4. Let engine idle for 1 minute.
5. Select “A/F SEN1(B1) P1278/P1279” of “A/F SEN1 ” in “DTC WORK SUPPORT” mode with CONSULT-III.
6. Touch “START”.
Is “ COMPLETED ” displayed on COUSULT-III?
YES >> GO TO 3
NO >> GO TO 4. OK >> INSPECTION END
NG >> Go to EC-201, " Diagnosis Procedure " .
Component Function Check " .
2. Wait for about 20 seconds at idle under the conditi on that “TESTING” is displayed on the CONSULT-III
screen.
3. Make sure that “TESTING” changes to “COMPLETED”. If “TESTING” changed to “O UT OF CONDITION”, go to EC-112, " Component Function Check " .
4. Touch “SELF-DIAG RESULT”.
Which is displayed on CONSULT-III? OK >> INSPECTION END
NG >> Go to EC-201, " Diagnosis Procedure " .
% ?
YES >> GO TO 7.
NO >> GO TO 6.

EC-200< COMPONENT DIAGNOSIS >
[HR16DE]
P0133 A/F SENSOR 1
5. Fully release accelerator pedal and then let engine idle for about 1 minute.
6. Check 1st trip DTC detected?.
Is 1st trip DTC detected? YES >> Go to
EC-201, " Diagnosis Procedure " .
NO >> INSPECTION END
Wiring Diagram INFOID:0000000004780712 AABWA0307G B

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Diagnosis Procedure
INFOID:0000000004780119Ground Inspection " .
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace ground connection. Exploded View " .
>> GO TO 3. YES >> Repair or replace.
NO >> GO TO 4. YES >> Repair or replace.
NO >> GO TO 5. MIXTURE RATIO SELF-LEARNING VALUE
CLEAR : Special Repair Requirement " .
2. Run engine for at least 10 minutes at idle speed.
Is the 1st trip DTC P0171 or P172 detected? Is it difficult to start engine? YES >> Perform trouble diagnosis for DTC P0171 or P0172. Refer to
EC-229, " DTC Logic " or
EC-235, " DTC Logic " .
NO >> GO TO 6.

EC-202< COMPONENT DIAGNOSIS >
[HR16DE]
P0133 A/F SENSOR 1
3. Check the voltage between A/F sensor 1 harness connector and ground.
Is the inspection result normal? YES >> GO TO 8.
NO >> GO TO 7. 7.
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. 8.
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 9.
NO >> Repair open circuit or short to ground or short to power in harness or connectors. 9.
CHECK AIR FUEL RATIO (A/F) SENSOR 1 HEATER
Refer to EC-139, " Component Inspection " .
Is the inspection result normal? YES >> GO TO 10.
NO >> GO TO 13. 10.
CHECK MASS AIR FLOW SENSORA/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
2 53
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

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Refer to
EC-153, " Component Inspection " .
Is the inspection result normal? YES >> GO TO 11.
NO >> Replace mass air flow sensor. Component Inspection " .
Is the inspection result normal? YES >> GO TO 12.
NO >> Repair or replace PCV valve. Diagnosis Procedure " .
Is the inspection result normal? YES >> GO TO 13.
NO >> Repair or replace.

YES >> GO TO 2.
NO >> GO TO 5. SEF259VA