 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.
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Trouble diagnosis name
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DTC detecting condition
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Possible cause
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P0196
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Engine oil temperature sensor range/performance
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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.
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- Harness or connectors
(The sensor circuit is open or shorted)
- Engine oil temperature sensor
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 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.
TESTING CONDITION:Before performing the following procedure, confirm that battery voltage is more than 11 V at idle. >>GO TO 2.
 2.PERFORM DTC CONFIRMATION PROCEDURE-I
- Start engine and warm it up to normal operating temperature.
- Turn ignition switch OFF and wait at least 10 seconds.
- Turn ignition switch ON.
- Turn ignition switch OFF and wait at least 10 seconds.
- Start engine and let it idle for 5 minutes and 10 seconds.
- Check 1st trip DTC.
Is 1st trip DTC detected?
YES >>Diagnosis Procedure (GT-R certified NISSAN dealer). NO >>GO TO 3.
 3.PERFORM DTC CONFIRMATION PROCEDURE-II
- Select “DATA MONITOR” mode with CONSULT-III.
- Check that “COOLAN TEMP/S” indicates above 80°C (176°F).If it is above 80°C (176°F), go to the following steps.If it is below 80°C (176°F), warm engine up until “COOLAN TEMP/S” indicates more than 80°C (176°F). Then perform the following steps.
- Turn ignition switch OFF and soak the vehicle in a cool place.
- Turn ignition switch ON.
NOTE: Do not turn ignition switch OFF until step 8.
- Select “DATA MONITOR” mode with CONSULT-III.
- Check the following.
COOLAN TEMP/S
| Below 40°C (104°F)
| INT/A TEMP SE
| Below 40°C (104°F)
| Difference between “COOLAN TEMP/S” and “INT/A TEMP SE”
| Within 6°C (11°F)
|
If they are within the specified range, perform the following steps.If they are out of the specified range, soak the vehicle to meet the above conditions. Then perform the following steps.NOTE: - Do not turn ignition switch OFF.
- If it is supposed to need a long period of time, do not deplete the battery.
- Start engine and let it idle for 5 minutes.
- Check 1st trip DTC.
Is 1st trip DTC detected?
YES >>Diagnosis Procedure (GT-R certified NISSAN dealer). NO >>INSPECTION END
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