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:

    C1130, C1131, C1132, C1133, C1136 engine signal
    Description ABS actuator and electric unit (control unit) and ECM exchange the engine signal with CAN communication line. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1.CHECK SELF-DIAGNOSIS RESULTS Check the self-diagnosis results. Diagnosis Procedure 1.CHECK ENGINE S ...

    Headlight control switch
    Lighting Rotate the switch to the position, and the front parking, tail, license plate, and instrument panel lights will come on. Rotate the switch to the position, and the headlights will come on and all the other lights remain on. CAUTION Use the headlights with the e ...

    Inspection and adjustment
    ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL ADDITIONAL SERVICE WHEN REMOVING BATTERY NEGATIVE TERMINAL : Description Initial setting is necessary when battery terminal is removed. CAUTION: The following specified operations are not performed under the non-initialized condition. ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2020 Copyright www.nimainfo.com
    0.0138