Nissan Sentra Service Manual: P1226 TP Sensor
DTC Logic
DTC DETECTION LOGIC
| DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition | Possible cause |
| P1226 | CTP LEARNING-B1 (CTP LEARNING-B1) | Closed throttle position learning is not performed successfully, repeatedly. | 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
- 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 10 V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
- Turn ignition switch ON.
- Turn ignition switch OFF, wait at least 10 seconds.
- Turn ignition switch ON.
- Repeat steps 2 and 3 for 32 times.
- Check 1st trip DTC.
Is 1st trip DTC detected? YES >> Proceed to EC-373, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
- Turn ignition switch OFF
- Remove the intake air duct. Refer to EM-25, "Exploded View".
- Check if foreign matter is caught between the throttle valve and the housing.
Is the inspection result normal? YES >> Replace electric throttle control actuator. Refer to EM- 27, "Removal and Installation".
NO >> Remove the foreign matter and clean the electric throttle control actuator inside, then perform throttle valve closed position learning. Refer to EC-139, "Work Procedure".
P1225 TP Sensor
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P1225
CTP LEARNING-B1
(Closed throttle ...
P1550 Battery current sensor
DTC Logic
DTC DETECTION LOGIC
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P1550
BAT CURRENT SENSOR
(Battery curr ...
Other materials:
Parking brake shoe
Adjustment - Drum Brake
If equipped with drum brakes, refer to PB-11, "Inspection and
Adjustment".
Adjustment - Disc Brake
Adjust parking brake lever stroke. Refer to PB-4,
"Inspection and Adjustment".
Perform parking brake break-in (drag on) operation by
d ...
NISSAN vehicle immobilizer system
The NISSAN Vehicle Immobilizer system will not
allow the engine to start without the use of the
registered key.
If the engine fails to start using a registered key
(for example, when interference is caused by
another registered key, an automated toll road
device or automatic payment device o ...
Precaution
Precaution for supplemental restraint system (srs) "air bag" and "seat belt
pre-tensioner"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used along
with a front seat belt, helps to reduce the risk or severity of injur ...
