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:

    TCM
    Exploded View  Bracket  TCM Vehicle front Removal and Installation CAUTION:  Do not impact the TCM when removing or installing TCM.  When replacing TCM and transaxle assembly as a set, replace transaxle assembly first and then r ...

    B1081 - B1084 seat belt pre-tensioner RH
    Description DTC B1081 - B1084 SEAT BELT PRE-TENSIONER RH The seat belt pre-tensioner RH is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor unitwill monitor for opens and shorts in detected lines to the seat belt pre-tensioner RH. PART LOCATION DTC Logic DTC DETECTIO ...

    Diagnosis and repair workflow
    Work Flow OVERALL SEQUENCE DETAILED FLOW\ 1.CHECK SYMPTOM Check the malfunction symptoms by performing the following items. Interview the customer to obtain the malfunction information (conditions and environment when the malfunction occurred). Check the symptom. 2.SELF-DIAGNOSIS ( ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2026 Copyright www.nimainfo.com
    0.0083