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:
Front power window motor
Removal and Installation
REMOVAL
Remove the front door glass regulator (2). Refer to GW-16,
"Removal and Installation".
Remove the bolts (A) and the front power window motor (1).
INSTALLATION
Installation is in the reverse order of removal. ...
Keys
Remote keyless entry keyfob (if so equipped)
Integrated door lock keyfob
Key number plate
CAUTION
Do not leave the ignition key inside the
vehicle when you leave the vehicle.
A key number plate is supplied with your keys.
Record the key number and keep it in a safe place
(such as ...
Dtc/circuit diagnosis
U1000 can comm circuit
DTC Logic
DTC DETECTION LOGIC
CONSULT Display
DTC Detection Condition
Possible Cause
CAN COMM CIRCUIT
[U1000]
AV control unit is not transmitting or receiving
CAN communication signal for 2 seconds or
more.
CAN communication system.
...
