Santa Fe Intermittent RPM Rising

model: Santa Fe (SM)
Displacement : 2000 cc
Fuel : Diesel
Subject :Intermittent RPM Rising = APS (acceleration position sensor )
1) condition

1. Intermittently the engine RPM increases ( 750 > 1,300 RPM )
   while braking.

2) Cause

1. APS (acceleration position sensor )

3) Diagnosis

1. The APS signal is 899 mv at idle condition
   
   *Specification – 0.6 – 0.75 volt
   
2. Check power which is impotted to APS sensor, ground line, signal power. – normal.
   
   * Specification
   
   = Sensor power: 4.5 – 5.5 Volt ( Disconnect the connector )
   =Sensor ground – 0 volt.
   =Sensor signal : Idling 0.6- 4.6 Volt.
   
3. Inspect the terminal of APS connector – normal ? ok.
4. Supply power source ( 0.6 ) to APS signal line using simulation mode in Hi- scan pro.
   - Normal operation of engine'.
   -replace the APS.
   - After replacing the APS, the sensor data and all system operate normally.

4)Repair Guide

1. Replace the Acceleration position sensor.
2. more study and please leave a comment