DTC Description
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition |
P0197 | EOT SEN/CIRC (Engine oil temperature sensor low) | An excessively low voltage from the engine oil temperature sensor is sent to ECM. |
P0198 | EOT SEN/CIRC (Engine oil temperature sensor high) | An excessively high voltage from the engine oil temperature sensor is sent to ECM. |
POSSIBLE CAUSE
FAIL-SAFE
Exhaust valve timing control does not function.
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
Is 1st trip DTC detected? YES >> Proceed to EC-281, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK ENGINE OIL TEMPERATURE SENSOR POWER SUPPLY
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK ENGINE OIL TEMPERATURE SENSOR POWER SUPPLY CIRCUIT
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
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-279, "Component Inspection".
Is the inspection result normal? YES >> GO TO 5.
NO >> Replace engine oil temperature sensor. Refer to EC-14, "Component Parts Location".
5.CHECK INTERMITTENT INCIDENT
Refer to GI-41, "Intermittent Incident".
>> INSPECTION END
Component Inspection
1.CHECK ENGINE OIL TEMPERATURE SENSOR
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace engine oil temperature sensor. Refer to EC-14, "Component Parts Location".
Preparation
Special Service Tool
The actual shapes of the tools may differ from those illustrated here.
Tool number
(TechMate No.)
Tool name
Description
KV991J0070
(J-45695-A)
Coolant refill tool
Refilling engine cooling system
—
(J-48891)
14 ...
Moonroof switch
Description
Transmits switch operation signal to moonroof motor and sunshade motor
assembly.
Diagnosis Procedure
Regarding Wiring Diagram information, refer to RF-17, "Wiring Diagram".
1.CHECK MOONROOF SWITCH INPUT SIGNAL
Turn ignition switch ON.
Check voltage betwe ...
Preparation
Special Service Tool
The actual shape of the tools may differ from those illustrated here.
Tool number
(TechMate No.)
Tool name
Description
—
(J-39570)
Chassis Ear
Locating the noise
—
(J-50397)
NISSAN Squeak and Rattle Kit
...