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
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. 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

1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Turn ignition switch ON.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Start engine and let it idle for 5 minutes and 10 seconds.
6. 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

1. Select “DATA MONITOR” mode with CONSULT-III.
2. 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.
3. Turn ignition switch OFF and soak the vehicle in a cool place.
4. Turn ignition switch ON.
   NOTE：
   Do not turn ignition switch OFF until step 8.
5. Select “DATA MONITOR” mode with CONSULT-III.
6. 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.
7. Start engine and let it idle for 5 minutes.
8. Check 1st trip DTC.

Is 1st trip DTC detected?
YES>>Diagnosis Procedure (GT-R certified NISSAN dealer).
NO>>INSPECTION END