Santa Fe, Vera Cruz 2006-2008

Accelerator Pedal Position Sensor

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Operation



Specific to:

Hyundai Santa Fe 2006-2008

Hyundai Veracruz 2007-2008

The accelerator pedal contains 2 individual Accelerator Pedal Position (APP) sensors within the assembly. The APP sensors 1 and 2 are potentiometer type sensors each with 3 circuits:



A 5-volt reference circuit
 
A low reference circuit
 
A signal circuit
 

The APP sensors are used to determine the pedal angle. The Powertrain Control Module (PCM) provides each APP sensor with a 5-volt reference circuit and a low reference circuit. The APP sensors provide the PCM with signal voltage proportional to the pedal movement. The APP sensor 1 signal voltage at rest position is near the low reference and increases as the pedal is actuated. The APP sensor 2 signal voltage at rest position is near the 5-volt reference and decreases as the pedal is actuated.

Removal & Installation



Specific to:

Hyundai Santa Fe 2006-2008

Hyundai Veracruz 2007-2008

  1. Before servicing the vehicle, refer to the Precautions Section.
  2.  
  3. Disconnect the ground cable from the battery.
  4.  
  5. Disconnect the Accelerator Pedal Position (APP) sensor connector.
  6.  
  7. Remove the nut securing accelerator pedal assembly.
  8.  

To install:

  1. Install in the reverse order of removal.
  2.  
  3. Tighten the nut securing accelerator pedal assembly to 113-139 inch lbs. (13-16 Nm).
  4.  

Testing



Specific to:

Hyundai Santa Fe 2006-2008

Hyundai Veracruz 2007-2008

The Accelerator Pedal Position (APP) sensor is installed on the accelerator pedal module and detects the rotation angle of the accelerator pedal. The APP is one of the most important sensors in engine control system, so it consists of the 2 sensors which adapt an individual sensor power and ground line. The second sensor monitors the first sensor and its output voltage is half of the first one. If the ratio of sensor 1 and 2 is out of the range (approximately 1 / 2 ), the diagnostic system judges that it is abnormal.

Use the following reference tables to test the APP sensor voltage and resistance values at the connector end points.

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Fig. Accelerator Pedal Position (APP) connector end view and circuit schematics



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Fig. Accelerator pedal position table-Voltage Output



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Fig. Accelerator pedal position circuit testing table-Sensor Resistance

 
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