Nissan Versa (N17): P0963 Pressure control solenoid A

Nissan Versa 2nd generation (N17) Service Manual / Transmission & driveline / Transaxle & transmission (TM) / P0963 Pressure control solenoid A

DTC Logic

DTC DETECTION LOGIC

DTC Trouble diagnosis name DTC detection condition Possible causes
P0963 Pressure Control Solenoid "A" Control Circuit High The following diagnosis conditions are met, and the current monitor reading of the TCM line pressure solenoid valve is 200 mA or less continuously for 0.5 seconds or more.

- Diagnosis condition

- Solenoid valve output current: 750 mA or more

- TCM power supply voltage: 10 V < TCM power supply voltage < 16 V

- Harness or connector (Line pressure solenoid valve circuit is open or shorted to power supply.)

- Line pressure solenoid valve

DTC CONFIRMATION PROCEDURE

CAUTION: Be careful of the driving speed.

1.PREPARATION BEFORE WORK

If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at least 10 seconds, then perform the next test.

>> GO TO 2.

2.CHECK DTC DETECTION

  1. Start the engine.
  2. Maintain the following conditions for 5 seconds or more.

Selector lever : N position

Engine speed : Idle speed

    3.   Check the first trip DTC.

Is "P0963" detected?

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

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK CIRCUIT BETWEEN TCM AND A/T UNIT

  1. Turn the ignition switch OFF.
  2. Disconnect the TCM connector and A/T unit connector.
  3. Check the continuity between the TCM harness connector and the A/T unit harness connector.  

Is the check result normal?

YES >> GO TO 2.

NO >> Repair or replace the malfunctioning parts.

2.CHECK LINE PRESSURE SOLENOID VALVE

Check the line pressure solenoid valve. Refer to TM, "Component Inspection (Line Pressure Solenoid Valve)".

Is the check result normal?

YES >> Check intermittent incident. Refer to GI, "Intermittent Incident".

NO >> Repair or replace the malfunctioning parts.

Component Inspection (Line Pressure Solenoid Valve)

1.CHECK LINE PRESSURE SOLENOID VALVE

Check the resistance between the A/T unit connector and ground. 

Is the check result normal?

YES >> INSPECTION END

NO >> There is a malfunction of line pressure solenoid valve. Replace the transaxle assembly. Refer to TM, "Removal and Installation".

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