Nissan Maxima Service and Repair Manual: P0778 pressure control solenoid B

Description

The secondary pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the TCM.

DTC Logic

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

CAUTION: Always drive vehicle at a safe speed.

NOTE: Immediately after performing any "DTC CONFIRMATION PROCEDURE", always turn ignition switch OFF.

Then wait at least 10 seconds before performing the next test.

1.CHECK DTC DETECTION

With CONSULT

  1.  Start engine.
  2.  Drive vehicle and maintain the following conditions for at least 5 consecutive seconds.
  3.  Perform "Self Diagnostic Results" in "TRANSMISSION".

With GST

Follow the procedure "With CONSULT".

Diagnosis Procedure

Regarding Wiring Diagram information, refer to TM-126, "Wiring Diagram".

1.CHECK SECONDARY PRESSURE SOLENOID VALVE CIRCUIT

  1.  Turn ignition switch OFF.
  2.  Disconnect TCM connector.
  3.  Check resistance between TCM vehicle side harness connector terminal and ground.

2.CHECK HARNESS BETWEEN TCM AND SECONDARY PRESSURE SOLENOID VALVE (PART 1)

  1.  Disconnect CVT unit connector.
  2.  Check continuity between TCM vehicle side harness connector terminal and CVT unit vehicle side harness connector terminal.

3.CHECK HARNESS BETWEEN TCM AND SECONDARY PRESSURE SOLENOID VALVE (PART 2

Check continuity between TCM vehicle side harness connector terminal and ground.

4.CHECK SECONDARY PRESSURE SOLENOID VALVE

Check secondary pressure solenoid valve. Refer to TM-78, "Component Inspection (Secondary Pressure Solenoid Valve)".

5.DETECT MALFUNCTIONING ITEMS

Check TCM connector pin terminals for damage or loose connection with harness connector.

Component Inspection (Secondary Pressure Solenoid Valve)

1.CHECK SECONDARY PRESSURE SOLENOID VALVE

Check resistance between CVT unit connector terminal and ground.

    P0776 pressure control solenoid B
    Description The secondary pressure solenoid valve regulates the secondary pressure to suit the driving condition in response to a signal sent from the TCM. DTC Logic DTC DETECTION LOGIC DTC ...

    P0826 up and down shift SW
    Description Manual mode switch transmits signals (manual mode, not manual mode, shift up and shift down) to combination meter. Paddle shifter transmits signals (shift up and shift down) to combi ...

    Other materials:

    Normal operating condition
    Description The majority of the audio concerns are the result of outside causes (bad CD, electromagnetic interference, etc.). NOISE The following noise results from variations in field strength, such as fading noise and multi-path noise, or external noise from trains and other sources. I ...

    Oil pan
    Exploded View  Transaxle assembly  Oil pan bolt  Drain plug  O-ring  Oil pan  Oil pan gasket  Magnet Apply CVT Fluid NS-2 Removal and Installation REMOVAL  Drain CVT fluid from CVT. ...

    U122A AV control unit
    DTC Logic Diagnosis Procedure 1.PERFORM THE SELF-DIAGNOSIS When U122A is detected, write configuration data with "MULTI AV" of CONSULT. U122E AV CONTROL UNIT DTC Logic DTC DETECTION LOGIC ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2022 Copyright www.nimainfo.com
    0.0057