Nissan Maxima Service and Repair Manual: P0725 engine speed

Description

The engine speed signal is transmitted from ECM to TCM via CAN communication line.

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 10 consecutive seconds.

Diagnosis Procedure

1.CHECK DTC WITH ECM

With CONSULT

  1.  Turn ignition switch ON.
  2.  Perform "Self Diagnostic Results" in "ENGINE".

2.CHECK DTC WITH TCM

With CONSULT

Perform "Self Diagnostic Results" in "TRANSMISSION".

3.DETECT MALFUNCTIONING ITEMS

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

    P0720 output speed sensor
    Description The secondary speed sensor detects the revolution of the CVT output shaft and emits a pulse signal. The pulse signal is transmitted to the TCM, which converts it into vehicle speed. ...

    P0730 incorrect gear ratio
    Description TCM selects the gear ratio using the engine load (throttle position), the primary pulley revolution speed, and the secondary pulley revolution speed as input signals. Then it changes ...

    Other materials:

    Off-road recovery
    While driving, the right side or left side wheels may unintentionally leave the road surface. If this occurs, maintain control of the vehicle by following the procedure below. Please note that this procedure is only a general guide. The vehicle must be driven as appropriate based on the conditi ...

    P1740 select solenoid
    Description  The lock-up select solenoid valve controls lock-up clutch pressure or forward clutch pressure (reverse brake pressure).  When controlling lock-up clutch, the valve is turned OFF. When controlling forward clutch, it is turned ON. DTC Logic DTC DET ...

    U1255 satellite radio tuner
    Description DTC Logic Diagnosis Procedure 1.CHECK SATELLITE RADIO TUNER POWER SUPPLY AND GROUND CIRCUIT Check satellite radio tuner power supply and ground circuit. 2.CHECK CONTINUITY COMMUNICATION CIRCUIT AND REQUEST SIGNAL CIRCUIT Turn ignition switch OFF. Disconnect AV cont ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2026 Copyright www.nimainfo.com
    0.0071