LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2013 >> FX37 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Engine Control System - DTCS P1212 Through P2138) >> DTC P1239, P2135: TP Sensor >> Component Inspection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Component Inspection

WARNING: This page is about a different car, the 2013 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK THROTTLE POSITION SENSOR 
    1. Turn ignition switch OFF.
    2. Reconnect all harness connectors disconnected.
    3. Perform "THROTTLE VALVE CLOSED POSITION LEARNING: SPECIAL REPAIR REQUIREMENT ".
    4. Turn ignition switch ON.
    5. Set selector lever position to D.
    6. Check the voltage between ECM harness connector terminals under the following conditions.
      ECM Condition Voltage (V)
      Connector + -
      Terminal Terminal
      F111 73 [TP sensor 1 (bank 1)] 71 Accelerator pedal: Fully released More than 0.36
      Accelerator pedal: Fully depressed Less than 4.75
      77 [TP sensor 1 (bank 2)] 72 Accelerator pedal: Fully released More than 0.36
      Accelerator pedal: Fully depressed Less than 4.75
      78 [TP sensor 2 (bank 1)] 71 Accelerator pedal: Fully released Less than 4.75
      Accelerator pedal: Fully depressed More than 0.36
      74 [TP sensor 2 (bank 2)] 72 Accelerator pedal: Fully released Less than 4.75
      Accelerator pedal: Fully depressed More than 0.36

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: GO TO 2.

  2. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR 
    1. Replace malfunctioning electric throttle control actuator.
    2. Perform "THROTTLE VALVE CLOSED POSITION LEARNING: SPECIAL REPAIR REQUIREMENT ".

      : INSPECTION END