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Home >> Infiniti >> 2008 >> G37 Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - G37 Coupe - DTC P1148 Through P2A03 >> P1226, P1235 TP Sensor >> Diagnosis Procedure

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.

    Is the inspection result normal? 

    YES: GO TO 2.

    NO: Remove the foreign matter and clean the electric throttle control actuator inside.

    Fig 1: Identifying Throttle Valve
    G05207803Courtesy of NISSAN MOTOR CO., U.S.A.
  2. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
    1. Replace malfunctioning electric throttle control actuator.
    2. Go to "SPECIAL REPAIR REQUIREMENT ".

    INSPECTION END