Nissan Maxima Service and Repair Manual: P2119 electric throttle control actuator

Description

Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc.

The throttle control motor is operated by the ECM and it opens and closes the throttle valve.

The throttle position sensor detects the throttle valve position, and the opening and closing speed of the throttle valve and sends the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and opens/closes the throttle valve 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.

2.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A AND B

  1. Turn ignition switch ON and wait at least 1 second.
  2. Selector lever position is D and wait at least 3 seconds.
  3. Selector lever position is P.
  4. Turn ignition switch OFF and wait at least 10 seconds.
  5. Turn ignition switch ON and wait at least 1 second.
  6. Selector lever position is D and wait at least 3 seconds.
  7. Selector lever position is P.
  8. Turn ignition switch OFF, wait at least 10 seconds, and then turn ON.
  9. Check DTC.

3.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION C

  1. Turn ignition switch ON and wait at least 1 second.
  2. Selector lever position is D and wait at least 3 seconds.
  3. Selector lever position is N or P.
  4. Start engine and let it idle for 3 seconds.
  5. Check DTC.

Diagnosis Procedure

1.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

  1. Turn ignition switch OFF.
  2. Remove the intake air duct. Refer to EM-24, "Removal and Installation".
  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

    P2118 throttle control motor
    Description The throttle control motor is operated by the ECM and it opens and closes the throttle valve. The current opening angle of the throttle valve is detected by the throttle position s ...

    P2122, P2123 APP sensor
    Description The accelerator pedal position sensor is installed on the upper end of the accelerator pedal assembly. The sensor detects the accelerator position and sends a signal to the ECM. Ac ...

    Other materials:

    S connector circuit 
    Description  The starter motor magnetic switch is supplied with power when the ignition switch is turned to the START position while the selector lever is in the P or N position. Diagnosis Procedure  CAUTION: Perform diagnosis under the condition that engine cannot start by the fo ...

    Diagnosis system (driver seat C/U)
    Diagnosis Description The auto drive positioner system can be checked and diagnosed for component operation with CONSULT. DIAGNOSTIC MODE Diagnostic mode [AUTO DRIVE POS.] Description WORK SUPPORT Changes the setting of each function SELF DIAGNOSTIC RESULT Perf ...

    NISSAN Intelligent Key
    WARNING Radio waves could adversely affect electric medical equipment. Those who use a pacemaker should contact the electric medical equipment manufacturer for the possible influences before use. The Intelligent Key transmits radio waves when the buttons are pressed. The FAA ad ...

    Nissan Maxima Owners Manual

    Nissan Maxima Service and Repair Manual

    © 2017-2020 Copyright www.nimainfo.com
    0.0298