Nissan Sentra manuals

Nissan Sentra Service Manual: P0963 Pressure control solenoid A

DTC Logic

DTC DETECTION LOGIC

DTC

CONSULT screen terms (Trouble diagnosis content)

DTC detection condition

Possible causes

P0963 PC SOLENOID A (Pressure Control Solenoid A Control Circuit High) The line pressure solenoid valve current is 200 mA or less continuously for 200 msec or more under the following diagnosis conditions:

Diagnosis conditions

  • Solenoid output current: 750 mA or more
  • GND short diagnosis of the solenoid drive circuit is not satisfied.
  • TCM power supply voltage: More than 11 V
  • Harness or connector (Line pressure solenoid valve circuit is open or shorted to power supply)
  • Line pressure solenoid valve

DTC CONFIRMATION PROCEDURE

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 and wait for 5 seconds or more.
  2. Check the first trip DTC.

Is “P0963” detected? YES >> Go to TM-203, "Diagnosis Procedure".

NO >> INSPECTION END

Diagnosis Procedure

1.CHECK CIRCUIT BETWEEN TCM AND CVT UNIT

  1. Turn ignition switch OFF.
  2. Disconnect TCM connector and CVT unit connector.
  3. Check continuity between TCM harness connector terminal and CVT unit harness connector terminal.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 2.

NO >> Repair or replace malfunctioning parts.

2.CHECK LINE PRESSURE SOLENOID VALVE

Check line pressure solenoid valve. Refer to TM-203, "Component Inspection".

Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".

NO >> Repair or replace malfunctioning parts.

Component Inspection

1.CHECK LINE PRESSURE SOLENOID VALVE

Check resistance between CVT unit connector terminal and ground.

result normal? Is the inspection
result normal? YES >> INSPECTION END

NO >> There is a malfunction of line pressure solenoid valve. Replace transaxle assembly. Refer to TM- 283, "Removal and Installation".

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