Nissan Maxima Service and Repair Manual: P0197, P0198 EOT sensor
Description
The engine oil temperature sensor is used to detect the engine oil temperature. The sensor modifies a voltage signal from the ECM.
The modified signal returns to the ECM as the engine oil temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.
<Reference data>
*: These data are reference values and are measured between ECM terminals 54 (Engine oil temperature sensor) and 52 (Sensor ground).
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following 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.
2.PERFORM DTC CONFIRMATION PROCEDURE
- Start engine and wait at least 5 seconds.
- Check 1st trip DTC.
Diagnosis Procedure
1.CHECK GROUND CONNECTION
- Turn ignition switch OFF.
- . Check ground connection E9.
2.CHECK EOT SENSOR POWER SUPPLY CIRCUIT
- Disconnect engine oil temperature (EOT) sensor harness connector.
- Turn ignition switch ON.
- Check the voltage between EOT sensor harness connector and ground.
3.CHECK EOT SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
- 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 and short to power.
4.CHECK ENGINE OIL TEMPERATURE SENSOR
5.CHECK INTERMITTENT INCIDENT
Component Inspection
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
P0196 EOT sensor
Description
The engine oil temperature sensor is used to detect the engine oil
temperature. The sensor modifies a voltage signal from the ECM.
The modified signal returns to the ECM as the e ...
P0222, P0223 TP sensor
Description
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The ...
Other materials:
Engine cooling system
The engine cooling system is filled at the factory
with a pre-diluted mixture of 50% Genuine
NISSAN Long Life Antifreeze/Coolant (blue) and
50% water to provide year-round antifreeze and
coolant protection. The antifreeze solution contains
rust and corrosion inhibitors. Additional engine
cooli ...
Remote Engine Start
The button will be on the NISSAN
Intelligent
Key if the vehicle has remote engine start.
This feature allows the engine to start from outside
the vehicle.
The following features may be affected when the
remote start feature is used:
Vehicles with an automatic climate control
sys ...
Tire equipment
1. SUMMER tires have a tread designed to
provide superior performance on dry pavement.
However, the performance of these
tires will be substantially reduced in snowy
and icy conditions. If you operate your vehicle
on snowy or icy roads, NISSAN recommends
the use of MUD & SNOW or ALL
SEA ...
Nissan Maxima Owners Manual
- Illustrated table of contents
- Safety-Seats, seat belts and supplemental restraint system
- Instruments and controls
- Pre-driving checks and adjustments
- Monitor, climate, audio, phone and voice recognition systems
- Starting and driving
- In case of emergency
- Appearance and care
- Do-it-yourself
- Maintenance and schedules
- Technical and consumer information
Nissan Maxima Service and Repair Manual
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