Nissan Maxima Service and Repair Manual: P1723 speed sensor

Description

The secondary speed sensor detects the revolution of parking gear and generates a pulse signal. The pulse signal is sent to the TCM, which converts it into vehicle speed.

The primary speed sensor detects the primary pulley revolution speed and sends a signal to 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.  Start engine and maintain the following conditions for at least 5 consecutive seconds.

VEHICLE SPEED : 10 km/h (6 MPH) or more

ACC PEDAL OPEN : More than 1.0/8

RANGE : "D" position

ENG SPEED : 450 rpm or more

Driving location : Driving the vehicle uphill (increased engine load) will help maintain the driving conditions required for this test.

Diagnosis Procedure

1.CHECK STEP MOTOR FUNCTION

Perform "Self Diagnostic Results" in "TRANSMISSION".

2.CHECK SECONDARY SPEED SENSOR SYSTEM

Check secondary speed sensor system. Refer to TM-60, "DTC Logic".

3.CHECK PRIMARY SPEED SENSOR SYSTEM

Check primary speed sensor system. Refer to TM-57, "DTC Logic".

4.CHECK ENGINE SPEED SIGNAL SYSTEM

Check engine speed signal system. Refer to TM-64, "DTC Logic".

5.DETECT MALFUNCTIONING ITEMS

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

    P1722 vehicle speed
    Description The vehicle speed signal is transmitted from ABS actuator and electric unit (control unit) to TCM via CAN communication line. DTC Logic DTC DETECTION LOGIC DTC CONFIRMATION PROCE ...

    P1726 throttle control signal
    Description The electric throttle control actuator consists of throttle control motor, accelerator pedal position sensor, throttle position sensor, etc. The actuator sends a signal to the ECM, an ...

    Other materials:

    CVT shift selector
    Exploded View  CVT shift selector handle  Shift selector handle clip  Shift selector handle cover  CVT shift selector assembly  Shift lock unit :Front Removal and Installation REMOVAL  Disconnect the battery neg ...

    Heater and Air Conditioner (automatic)
    Front defroster button Temperature control dial (driver's side)/ AUTO button Display screen Temperature control dial (passenger's side)/DUAL button Fresh air intake button Air recirculation button (air conditioner) button (manual air flow control) button (fan speed cont ...

    Head restraints/headrests
    WARNING Head restraints/headrests supplement the other vehicle safety systems. They may provide additional protection against injury in certain rear end collisions. Adjustable head restraints/headrests must be adjusted properly, as specified in this section. Check the adjustment after someo ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2021 Copyright www.nimainfo.com
    0.0184