DTC DETECTION LOGIC
| DTC No. | Trouble diagnosis | DTC detecting condition | Possible cause |
| P1225 | Closed throttle position learning performance | Closed throttle position learning value is excessively low. | Electric throttle control actuator (TP sensor 1 and 2) |
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC, "Diagnosis Procedure".
NO >> INSPECTION END
1.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
: Vehicle front
Is the inspection result normal?
YES >> GO TO 2.
NO >> Remove the foreign matter and clean the electric throttle control actuator inside, and then perform throttle valve closed position learning. Refer to EC, "Work Procedure".

2.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
Replace electric throttle control actuator. Refer to EM, "Removal and Installation".
>> INSPECTION END
Exterior front
1. Engine hood
2. Windshield
3. Wiper and washer switch
4. Power windows (if so equipped)
5. Door locks. NISSAN Intelligent Key
(if so equipped). Key fob (if so equipped). Keys
6. Mirrors
7. Tire pressure. Flat tire. Tire chains
8. Headlight and turn signal switch. Replacing bulbs
9. Fo ...
Engine protection control at low engine oil pressure
Engine protection control at low engine oil pressure : system diagram
Engine protection control at low engine
oil pressure : system description
INPUT/OUTPUT SIGNAL CHART
Sensor
Input signal to ECM
ECM function
Actuator
Engine oil pressure sensor
Engine pressure
...