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:

    The braking distance is long
    Diagnosis Procedure CAUTION: The stopping distance on slippery road surfaces might be longer with the ABS operating than when the ABS is not operating. 1.CHECK FUNCTION Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector to deactivate ABS. In ...

    Camshaft
    Exploded View Camshaft position sensor bracket (RH) Camshaft brackets No. 1 camshaft bracket (RH) Camshaft (EXH) (RH) Camshaft (INT) (RH) Cylinder head (RH) Cylinder head (LH) Camshaft (EXH) (LH) Camshaft (INT) (LH) No. 1 camshaft bracket (LH) Camshaft brackets Cam ...

    P0460 fuel level sensor
    Description The fuel level sensor is mounted in the fuel level sensor unit. The sensor detects a fuel level in the fuel tank and transmits a signal to the combination meter. The combination meter sends the fuel level sensor signal to the ECM via the CAN communication line. It consists o ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2020 Copyright www.nimainfo.com
    0.0143