Nissan Sentra manuals

Nissan Sentra Service Manual: P0132 A/F SENSOR 1

Nissan Sentra Service Manual / Engine / Engine control system / Dtc/circuit diagnosis / P0132 A/F SENSOR 1

DTC Logic

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 No.

 CONSULT screen terms (Trouble diagnosis content)

 DTC detecting condition

 Possible cause
P0132 A/F SENSOR1 (B1) (O2 sensor circuit high voltage 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 shorted.)
  • A/F sensor 1

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.

Follow the procedure “With CONSULT” above. 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.

  1. Maintain the following conditions for about 20 consecutive seconds.

NOTE:


NOTE:

  1. Check 1st trip DTC.

Follow the procedure “With CONSULT” above. With GST


Follow the procedure “With CONSULT” above.

Is 1st trip DTC is detected? YES >> Proceed to EC-218, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

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


*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


*1: Except California

*2: For California

  1. 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


*1: Except California

*2: For California

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

*1: Except California


*1: Except California

*2: For California


  1. 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.

P0131 A/F Sensor 1
DTC Logic 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 No. CONSULT s ...

P0137 HO2S2
DTC Logic DTC DETECTION LOGIC The heated oxygen sensor 2 has a much longer switching time between rich and lean than the air fuel ratio (A/F) sensor 1. The oxygen storage capacity of the three way ...

Other materials:

Removal and installation
EXHAUST SYSTEM Exploded View Sub muffler Spring Mounting rubber Seal bearing Catalyst shroud (upper) Seal bearing Exhaust front tube Spring Catalyst shroud (lower) Clamp Heated oxygen sensor 2 Ring gasket Mounting rubber Main muffler Exhaust finisher (if equipped ...

Multiport Fuel Injection System or Engine Control System
Before connecting or disconnecting any harness connector for the multiport fuel injection system or ECM: Turn ignition switch to “OFF” position. Disconnect negative battery terminal. Otherwise, there may be damage to ECM. Before disconnecting pressurized fuel line from ...

P2118 Throttle control motor
DTC Logic DTC DETECTION LOGIC DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause P2118 ETC MOT-B1 (Throttle actuator control motor current range/ performance) ECM detects short in both circuits between ECM a ...

© 2014-2025 Copyright www.nisentra.com