Nissan Sentra. Manual - part 380

EC-216

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

P0131 A/F SENSOR 1

*2: For California

4. Check the continuity between A/F sensor 1 harness connector and ground, or ECM harness connector

and ground.

*1: Except California

*2: For California

5. Also check harness for short to power.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace air fuel ratio (A/F) sensor 1. Refer to 

EM-30, "Exploded View"

.

NO

>> Repair or replace error-detected parts.

+

−

Continuity

A/F sensor 1

Connector

Terminal

F12

*1

F42

*2

1

Ground

Not existed

2

+

−

Continuity

ECM

Connector

Terminal

F24

41

Ground

Not existed

45

P0132 A/F SENSOR 1

EC-217

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

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EC

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P0132 A/F SENSOR 1

DTC Logic

INFOID:0000000009758480

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 high.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure

before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

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

1. Start engine and warm it up to normal operating temperature.

2. Select “A/F SEN1 (B1)” in “DATA MONITOR” mode of “ENGINE” using CONSULT.

3. Check “A/F SEN1 (B1)” indication.

With GST

Follow the procedure “With CONSULT” above.
Is the indication constantly approx. 5 V?

YES

>> Proceed to 

EC-218, "Diagnosis Procedure"

.

NO

>> GO TO 3.

3.

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

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 after restarting engine at step 1, return to step

1.

4. Check 1st trip DTC.

With GST

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0132

A/F SENSOR1 (B1)
(O2 sensor circuit high volt-
age bank 1 sensor 1)

The A/F signal computed by ECM from the A/F 
sensor 1 signal is constantly approx. 5 V.

• Harness or connectors

(A/F sensor 1 circuit is open or short-
ed.)

• A/F sensor 1

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

EC-218

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

P0132 A/F SENSOR 1

Follow the procedure “With CONSULT” above.
Is 1st trip DTC is detected?

YES

>> Proceed to 

EC-218, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009758481

1.

CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect A/F sensor 1 harness connector.

3. Turn ignition switch ON.

4. Check the voltage between A/F sensor 1 harness connector and ground.

*1: Except California

*2: For California

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK AIR FUEL RATIO (A/F) SENSOR 1 POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R harness connector.

3. Check the continuity between A/F sensor 1 harness connector and IPDM E/R harness connector.

*1: Except California

*2: For California

4. Also check harness for short to ground.
Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

3.

CHECK A/F SENSOR 1 INPUT SIGNAL CIRCUIT

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.

*1: Except California

+

−

Voltage

A/F sensor 1

Connector

Terminal

F12

*1

F42

*2

4

Ground

Battery voltage

+

−

Continuity

A/F sensor 1

IPDM E/R

Connector

Terminal

Connector

Terminal

F12

*1

F42

*2

4

E45

26

Existed

+

−

Continuity

A/F sensor 1

ECM

Connector

Terminal

Connector

Terminal

F12

*1

F42

*2

1

F24

41

Existed

2

45

P0132 A/F SENSOR 1

EC-219

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

*2: For California

4. Check the continuity between A/F sensor 1 harness connector and ground, or ECM harness connector

and ground.

*1: Except California

*2: For California

5. Also check harness for short to power.
Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK INTERMITTENT INCIDENT

Check intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace air fuel ratio (A/F) sensor 1. Refer to 

EM-30, "Exploded View"

.

NO

>> Repair or replace error-detected parts.

+

−

Continuity

A/F sensor 1

Connector

Terminal

F12

*1

F42

*2

1

Ground

Not existed

2

+

−

Continuity

ECM

Connector

Terminal

F24

41

Ground

Not existed

45