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".
P0196 EOT sensor
P0222, P0223 TP sensorRemoval and installation
NATS ANTENNA AMP.
Removal and Installation
REMOVAL
Remove the steering column covers. Refer to IP-17, "Removal and
Installation".
Disconnect the harness connector from the NATS antenna amp.
Release pawls and remove NATS antenna amp. (1) from the
ignition sw ...
General maintenance
Explanation of General Maintenance
General maintenance includes those items which should be checked during the
normal day-to-day operation
of the vehicle. They are essential if the vehicle is to continue operating
properly. The owners can perform the
checks and inspections themselves or have ...
Refrigeration system symptoms
Trouble Diagnosis For Unusual Pressure
Diagnose using a manifold gauge whenever system’s high and/or low side
pressure(s) is/are unusual. The
marker above the gauge scale in the following tables indicates the standard
(usual) pressure range. Refer to
above table (Ambient air temperature-to- ...