Nissan Rogue Service Manual: P0037, P0038 HO2S2 heater
DTC Description
DTC DETECTION LOGIC
| DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
| P0037 | HO2S2 HTR (B1) (HO2S heater control circuit low bank 1 sensor 2) | The current amperage in the heated oxygen sensor 2 heater circuit is
out
of the normal range.
(An excessively low voltage signal is sent to ECM through the heated oxygen sensor 2 heater.) |
| P0038 | HO2S2 HTR (B1) (HO2S heater control circuit high bank 1 sensor 2) | The current amperage in the heated oxygen sensor 2 heater circuit is
out
of the normal range.
(An excessively high voltage signal is sent to ECM through the heated oxygen sensor 2 heater.) |
POSSIBLE CAUSE
DTC P0037
- Harness or connectors (Heated oxygen sensor 2 heater circuit is open or shorted.)
- Heated oxygen sensor 2 heater
TC P0038
- Harness or connectors (Heated oxygen sensor 2 heater circuit is shorted.)
- Heated oxygen sensor 2 heater
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
- Turn ignition switch ON and select “DATA MONITOR” mode of “ENGINE” using CONSULT.
- Start engine and warm it up to normal operating temperature.
- Turn ignition switch OFF and wait at least 10 seconds.
- tart engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load.
- Let engine idle for 1 minute.
- Check 1st trip DTC.
With GST
Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected? YES >> Proceed to EC-188, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK HO2S2 POWER SUPPLY CIR
- Turn ignition switch OFF.
- Disconnect heated oxygen sensor 2 (HO2S2) harness connector.
- Turn ignition switch ON.
- Check the voltage between HO2S2 harness connector and ground.
Is the inspection result normal? YES >> GO TO 2.
NO >> Repair or replace error-detected parts.
2.CHECK HO2S2 OUTPUT SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between HO2S2 harness connector and ECM harness connector.
- Also check harness for short to ground and to power.
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace error-detected parts.
3.CHECK HEATED OXYGEN SENSOR 2 HEATER
Check the heated oxygen sensor 2 heater. Refer to EC-189, "Component Inspection".
Is the inspection result normal? YES >> GO TO 5.
NO >> GO TO 4.
4.REPLACE HEATED OXYGEN SENSOR 2
Replace heated oxygen sensor 2. Refer to EX-5, "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 using Oxygen Sensor Thread Cleaner [commercial service tool (J-43897-18 or J43897-12)] and approved Anti-seize Lubricant (commercial service tool).
>> INSPECTION END
5.CHECK INTERMITTENT INCIDENT
Refer to GI-41, "Intermittent Incident".
>> INSPECTION END
Component Inspection
1.CHECK HEATED OXYGEN SENSOR 2 HEATER
- Turn ignition switch OFF.
- Disconnect heated oxygen sensor 2 (HO2S2) harness connector.
- Check resistance between HO2S2 terminals as per the following.
Is the inspection result normal? YES >> INSPECTION END
NO >> GO TO 2.
2.REPLACE HEATED OXYGEN SENSOR 2
Replace heated oxygen sensor 2. Refer to EX-5, "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 using Oxygen Sensor Thread Cleaner [commercial service tool (J-43897-18 or J43897-12)] and approved Anti-seize Lubricant (commercial service tool).
>> INSPECTION END
P0031, P0032 A/F sensor 1 heater
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0031
A/F SEN1 HTR (B1)
[Air fuel ratio (A/F) sens ...
P0075 intake valve timing control
DTC Description
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0075
INT/V TIM V/CIR-B1
(Intake valve control sol ...
Other materials:
ECU diagnosis information
EPS CONTROL UNIT
Reference Value
VALUES ON THE DIAGNOSIS TOOL
CAUTION:
The output signal indicates the EPS control unit calculation data. The normal
values will be displayed
even in the event that the output circuit (harness) is open.
NOTE:
The following table includes information (items) ...
Fuel level sensor unit, fuel filter
and fuel pump assembly
Exploded View
1. Lock ring
2. O-ring
3. Fuel filter and fuel pump assembly
4. Fuel level sensor and fuel tank temperature sensor
5. Lock ring
6. O-ring
7. Sub fuel level sensor assembly
8. Fuel tank
Fron
CAUTION:
Do not remove or disassemble parts unless instructed as shown.
R ...
Rear disc brake
Brake Burnishing
CAUTION:
Burnish contact surfaces between brake pads and disc brake
rotor according to the following procedure
after refinishing the disc brake rotor, replacing brake pads or if a soft
pedal occurs at very low
mileage.
Be careful of vehicle speed. Brakes ...
