Nissan Versa (N17): P1226 TP sensor

Nissan Versa 2nd generation (N17) Service Manual / Engine / Engine control system (EC) / P1226 TP sensor

DTC Logic

DTC DETECTION LOGIC

DTC No. Trouble diagnosis DTC detecting condition Possible cause
P1226 Closed throttle position learning performance 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.

  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 10 V at idle.

>> GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

  1. Turn ignition switch ON.
  2. Turn ignition switch OFF and wait at least 10 seconds.
  3. Turn ignition switch ON.
  4. Repeat steps 2 and 3 for 32 times.
  5. Check 1st trip DTC.

Is 1st trip DTC detected?

YES >> Go to EC, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

  1. Turn ignition switch OFF.
  2. Remove the intake air duct. Refer to EM, "Removal and Installation".
  3. Check if foreign matter is caught between the throttle valve (1) and the housing.
  •   : 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".

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

2.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

Replace electric throttle control actuator. Refer to EM, "Removal and Installation".

>> INSPECTION END

P1225 TP sensor

P1550 battery current sensor

Other materials:

Drive belt idler pulley
Exploded View 1. Generator bracket 2. Center shaft 3. Spacer 4. Adjusting bolt 5. Washer 6. Idler pulley 7. Plate Removal and Installation REMOVAL Remove the fender protector (RH). Remove the air duct inlet assembly. Remove drive belt. Remove the lock nut, and then remove the pl ...

Ignition timing
Inspection 1.CHECK IGNITION TIMING     1.   Attach timing light (A) to loop wire (1) as shown.     2.   Check ignition timing. 1 : Timing indicator >> INSPECTION END ...

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