Hyundai Santa Fe Field Trouble,Intermittent RPM Rising

Auto Learning/Field Case Study =Hyundai Cars Trouble Study ,this site Gives you an Idea about some problem occurred in Hyundai Cars.

Subject:Intermittent RPM Rising = APS(Acceleration Position Sensor)

Model: Santa Fe	Year Model: 2006	Mileage: 80125km
Displacement: 2000cc	Fuel: Diesel	T/A: Auto
N code: Rough Idling	C code: Poor Contact & Short Open Circuit	System: Diesel Control System

1) Trouble Condition:

1. Intermittently RPM increases(750—>1,3ooRpm) While Braking.

2) Trouble Cause:

• APS(Acceleration Position Sensor) malfunction.

3) Trouble Diagnosis:

• The APS signal is 899mV at Idle condition.
  
  = Specification – 0.6—0.75 Volt=
  
• Check the power which inputted to APS sensor, Ground line,signal power – Normal.
  
  =Specification=
  
  1) Sensor Power: 4.5 – 5.5 Volt(Disconnect the Connector)
  2)Sensor Ground : 0 Volt.
  3)Sensor signal: Idling 0.6-- 0.75 Volt, Full throttle 3.6 – 4.6 Volt.
• Inspect the terminal APS connector= Normal.
• Supply Power source(0.6V) to APS signal line using simulation mode in GDS(Global Diagnostic System)
  = Normal operation of Engine.
  = Replace the APS.
  = After replacing the APS, the sensor data and all system operate normally

4) Trouble Repair Guide:

1. Replace the Acceleration Position Sensor.