Nissan Sentra Service Manual: P0197, P0198 EOTSensor
DTC Logic
DTC DETECTION LOGIC
| DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition | Possible cause |
| P0197 | EOT SEN/CIRC (Engine oil temperature sensor circuit low) | An excessively low voltage from the engine oil temperature sensor is sent to ECM. |
|
| P0198 | EOT SEN/CIRC (Engine oil temperature sensor circuit high) | An excessively high voltage from the engine oil temperature sensor is sent to ECM. |
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.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
- Start engine and wait at least 5 seconds.
- Check 1st trip DTC.
Is 1st trip DTC detected? YES >> Proceed to EC-264, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK ENGINE OIL TEMPERATURE SENSOR POWER SUPPLY
- Turn ignition switch OFF
- Disconnect engine oil temperature (EOT) sensor harness connector.
- Turn ignition switch ON.
- Check the voltage between EOT sensor harness connector and ground.
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK ENGINE OIL TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector
- Check the continuity between EOT sensor harness connector and ECM harness connector.
- 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 EOT SENSOR GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between EOT sensor harness connector and ECM harness connector.
- 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 ENGINE OIL TEMPERATURE SENSOR
Check the engine oil temperature sensor. Refer to EC-265, "Component Inspection (EOT Sensor)".
Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".
NO >> Replace engine oil temperature sensor. Refer to EM-94, "Exploded View".
Component Inspection (EOT Sensor)
1.CHECK ENGINE OIL TEMPERATURE SENSOR
- Turn ignition switch OFF.
- Disconnect engine oil temperature sensor harness connector
- Remove engine oil temperature sensor.
- Check resistance between engine oil temperature sensor terminals by heating with hot water as shown in the figure.
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace engine oil temperature sensor. Refer to EM-94, "Exploded View".
P0196 EOT Sensor
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P0196 is displayed with DTC P0197 or P0198, first perform the
trouble diagnosis for DTC P0197 or
P0198. Refer to EC-264, "DTC Logic".
...
P0222, P0223 TP Sensor
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P0222 or P0223 is displayed with DTC P0643, first perform the
trouble diagnosis for DTC P0643.
Refer to EC-353, "DTC Logic".
DTC No ...
Other materials:
Glass lid
Exploded view
Glass lid
Roof panel
Front
Removal and installation
Removal
Caution:
After installing glass lid, check gap/height adjustments and
operation to make sure there is no malfunction.
Handle glass lid with care to prevent damage.
Open sunshade (1), then close ...
Wiring diagram
Meter system
Wiring diagram
Compass
Wiring diagram
...
Inside mirror
Exploded view
Manual mirror
Windshield glass
Inside mirror base
Inside mirror assembly
Auto anti-dazzle mirror
Windshield glass
Inside mirror base
Harness connector
Mirror screw
Inside mirror assembly
Inside mirror cover
Removal and installation
Manual mirror
...
