Nissan Maxima Service and Repair Manual: P0868 transmission fluid pressure

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 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.  Turn ignition switch ON.

  2.  Select "Data Monitor" in "TRANSMISSION".

  3.  Check that output voltage of CVT fluid temperature sensor is within the range below.

ATF TEMP SEN : 1.0 - 2.0 V

If it is out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to increase the voltage (cool down the fluid)

4. Start engine and maintain the following conditions for at least 10 consecutive seconds.

VEHICLE SPEED (accelerate slowly) : 0 → 50 km/h (31 MPH)

ACC PEDAL OPEN : 0.5/8 - 1.0/8

RANGE : "D" position

Diagnosis Procedure

1.CHECK LINE PRESSURE

Perform line pressure test. Refer to TM-162, "Inspection and Judgment".

2.CHECK SECONDARY PRESSURE SOLENOID VALVE

  1.  Turn ignition switch OFF.

  2.  Disconnect CVT unit connector.

  3.  Check secondary pressure solenoid valve. Refer to TM-94, "Component Inspection (Secondary Pressure Solenoid Valve)".

3.CHECK LINE PRESSURE SOLENOID VALVE

Check line pressure solenoid valve. Refer to TM-94, "Component Inspection (Line Pressure Solenoid Valve)".

4.CHECK SECONDARY PRESSURE SENSOR SYSTEM

Check secondary pressure sensor system. Refer to TM-85, "DTC Logic".

5.DETECT MALFUNCTIONING ITEMS

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

Component Inspection (Line Pressure Solenoid Valve)

1.CHECK LINE PRESSURE SOLENOID VALVE

Check resistance between CVT unit connector terminal and ground.

Component Inspection (Secondary Pressure Solenoid Valve)

1.CHECK SECONDARY PRESSURE SOLENOID VALVE

Check resistance between CVT unit connector terminal and ground.

    P0845 transmission fluid pressure SEN/SW B
    Description The primary pressure sensor detects primary pressure of CVT and sends a signal to the TCM. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE NOTE: Immediately after perfo ...

    P1701 TCM
    Description When the power supply to the TCM is cut off, for example because the battery is removed, and the self-diagnosis memory function stops, a malfunction is detected. NOTE: Since "P1701 ...

    Other materials:

    Operating range
    The Intelligent Key functions can only be used when the Intelligent Key is within the specified operating range from the request switch 1 . NOTE: If all doors are already unlocked, opening the trunk does NOT require an Intelligent Key to be in range of the trunk request switch or rear of ...

    Wiring diagram
    ENGINE CONTROL SYSTEM Wiring Diagram ...

    Door mirror motor
    Description It makes mirror face operate from side to side and up and down with the electric power that automatic drive positioner control unit supplies. Component Function Chec 1. CHECK DOOR MIRROR MOTOR FUNCTION Check the operation with "MIRROR MOTOR RH" and "MIRROR MOTOR LH" in "ACTIVE TE ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2023 Copyright www.nimainfo.com
    0.0056