Nissan Maxima Service and Repair Manual: P1225 TP sensor

Description

Nissan Maxima. Description

Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc. The throttle position sensor responds to the throttle valve movement.

The throttle position sensor has two sensors. These sensors are a kind of potentiometer which transform the throttle valve position into output voltage, and emit the voltage signal to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and controls the throttle valve opening angle in response to driving conditions via the throttle control motor.

DTC Logic

DTC DETECTION LOGIC

Nissan Maxima. DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.

  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION: Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.

2.PERFORM DTC CONFIRMATION PROCEDURE

  1. Turn ignition switch ON.
  2. Turn ignition switch OFF and wait at least 10 seconds.
  3. Turn ignition switch ON.
  4. Check 1st trip DTC.

Diagnosis Procedure

1.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

  1. Turn ignition switch OFF.
  2. Remove the intake air duct.
  3. Check if foreign matter is caught between the throttle valve (1) and the housing.

Nissan Maxima. CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

2: Electric throttle control actuator
: Vehicle front

2.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

  1. Replace electric throttle control actuator.

Special Repair Requirement

1.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

2.PERFORM IDLE AIR VOLUME LEARNING

    P1217 engine over temperature
    DTC Logic DTC DETECTION LOGIC NOTE:  If DTC P1217 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX. Refer to EC-161, "DTC Logic".  If DTC ...

    P1226 TP sensor
    Description Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc. The throttle position sensor responds to the throttle valve movement. The ...

    Other materials:

    Daytime running light system
    System Diagram System Description The headlamp system for Canada vehicles is equipped with a daytime light relay that activates the high beam headlamps at approximately half illumination whenever the engine is running. If the parking brake is depressed before the engine is started, the day ...

    Steering switch
    Description When one of the steering wheel audio control switches is pushed, the resistance in the steering wheel audio control switch circuit changes, depending on which button is pushed. Diagnosis Procedure 1.CHECK STEERING SWITCH RESISTANCE Disconnect steering switch connector M88. ...

    If your vehicle overheats
    If your vehicle is overheating (indicated by an extremely high temperature gauge reading) or if you feel a lack of engine power, detect abnormal noise, etc., take the following steps. WARNING Do not continue to drive if your vehicle overheats. Doing so could cause engine damage or a vehi ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2025 Copyright www.nimainfo.com
    0.0065