Nissan Maxima Service and Repair Manual: P1226 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

TC 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. Repeat steps 2 and 3 for 32 times.
  5. 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

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    Nissan Maxima Service and Repair Manual

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