Nissan GT-R (R35) · Service Manual ENGINE

P0196 EOT SENSOR

VR38

P0196

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.

SEF594K.JPG

<Reference data>

SEF012P.JPG

Engine oil temperature
[°C (°F)]
Voltage* (V)
Resistance (kΩ)
–10 (14)
4.4
7.0 - 11.4
20 (68)
3.5
2.1 - 2.5
50 (122)
2.2
0.68 - 1.00
90 (194)
0.9
0.236 - 0.260
110 (230)
0.6
0.143 - 0.153
*: These data are reference values and are measured between ECM terminals 27 (Engine oil temperature sensor) and 26 (Sensor ground).

DTC Logic

 
 DTC DETECTION LOGIC

NOTE:
If DTC P0196 is displayed with P0197 or P0198, first perform the trouble diagnosis for DTC P0197, P0198. Refer to DTC Logic (GT-R certified NISSAN dealer).

DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0196
Engine oil temperature sensor range/performance
Rationally incorrect voltage from the sensor is sent to ECM, compared with the voltage signals from engine coolant temperature sensor and intake air temperature sensor.
  • Harness or connectors
    (The sensor circuit is open or shorted)
  • Engine oil temperature sensor

 
 DTC CONFIRMATION PROCEDURE

 
 1.PRECONDITIONING
 
 2.PERFORM DTC CONFIRMATION PROCEDURE-I
 
 3.PERFORM DTC CONFIRMATION PROCEDURE-II

Diagnosis Procedure


 
 1.CHECK GROUND CONNECTION
 
 2.CHECK ENGINE OIL TEMPERATURE SENSOR
 
 3.CHECK INTERMITTENT INCIDENT

Component Inspection


 
 1.CHECK ENGINE OIL TEMPERATURE SENSOR