Nissan Rogue (T33) 2021-Present Service Manual: P0137 Ho2s2

DTC Description

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 catalyst (manifold) causes the longer switching time. To judge the malfunctions of heated oxygen sensor 2, ECM monitors whether the maximum voltage of the sensor is sufficiently high during the various driving condition such as fuel-cut.

: 0.71 V

POSSIBLE CAUSE

• Harness or connectors (The heated oxygen sensor 2 circuit is open or shorted.)

• Heated oxygen sensor 2

• Fuel pressure

• Fuel injector

• Intake air leaks

FAIL-SAFE

Not applicable

DTC Confirmation Procedure

INSPECTION START

Do you have CONSULT?

Do you have CONSULT?

GO TO 2.

GO TO 5.

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:

For better results, perform “DTC WORK SUPPORT” at a temperature of 0 to 30°C (32 to 86°F).

GO TO 3.

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

1. Turn ignition switch ON and select “DATA MONITOR” mode of “ENGINE” using CONSULT.

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

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

4. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.

5. Let engine idle for 1 minute.

6. Make sure that “COOLANT TEMP/S” indicates more than 70°C (158°F).

   If not, warm up engine and go to next step when “COOLANT TEMP/S” indication reaches 70°C (158°F).

7. Open engine hood.

8. Select “HO2S2 (B1) P1147” of “HO2S2” in “DTC WORK SUPPORT” mode of “ENGINE” using CONSULT.

9. Follow the instruction of CONSULT.

   NOTE:

   It will take at most 10 minutes until “COMPLETED” is displayed.

10. Touch “SELF-DIAG RESULT”.

Which is displayed on CONSULT screen?

INSPECTION END

Refer to DTC Diagnosis Procedure.

GO TO 4.

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

1. Turn ignition switch OFF and leave the Nissan Ariya vehicle in a cool place (soak the vehicle).

2. Perform DTC CONFIRMATION PROCEDURE again.

GO TO 3.

PERFORM COMPONENT FUNCTION CHECK

Perform component function check. Refer to Component Function Check.

NOTE:

Use component function check to check the overall function of the heated oxygen sensor 2 circuit. During this check, a 1st trip DTC might not be confirmed.

Is the inspection result normal?

To check malfunction symptom before repair: Refer to Intermittent Incident.

Confirmation after repair: INSPECTION END

Proceed to DTC Diagnosis Procedure.

DTC Diagnosis Procedure

CLEAR THE MIXTURE RATIO SELF-LEARNING VALUE

1. Clear the mixture ratio self-learning value. Refer to Description.

2. Run engine for at least 10 minutes at idle speed.

Is the 1st trip DTC P0171 detected? Is it difficult to start engine?

Perform trouble diagnosis for DTC P0171. DTC Description

GO TO 2.

CHECK HO2S2 GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect heated oxygen sensor 2 (HO2S2) harness connector.

3. Disconnect ECM harness connector.

4. Check the continuity between HO2S2 harness connector and ECM harness connector.

   +		−		Continuity
   HO2S2		ECM
   Connector	Terminal	Connector	Terminal
   F67	1	F71	97	Existed

5. Also check harness for short to power.

Is the inspection result normal?

GO TO 3.

Repair or replace error-detected parts.

CHECK HO2S2 INPUT SIGNAL CIRCUIT

1. Check the continuity between HO2S2 harness connector and ECM harness connector.

   +		−		Continuity
   HO2S2		ECM
   Connector	Terminal	Connector	Terminal
   F67	2	F71	92	Existed

2. Check the continuity between HO2S2 harness connector and ground, or ECM harness connector and ground.

   +		−	Continuity
   HO2S2
   Connector	Terminal
   F67	2	Ground	Not existed

   +		−	Continuity
   ECM
   Connector	Terminal
   F71	92	Ground	Not existed

3. Also check harness for short to power.

Is the inspection result normal?

GO TO 4.

Repair or replace error-detected parts.

CHECK HEATED OXYGEN SENSOR 2

Check the heated oxygen sensor 2. Refer to Component Inspection.

Is the inspection result normal?

Check intermittent incident. Refer to Intermittent Incident.

GO TO 5.

REPLACE HEATED OXYGEN SENSOR 2

Replace heated oxygen sensor 2.

INSPECTION END