Hyundai Elantra(HD)/ATM 3rd Hold – TPS

Model: Elantra (HD)	Year model: 2008	mileage: 20567 km
Displacement:2000cc	Fuel: Gasoline	T/A auto
N code: Impossible to shift	C code: poor contact/short circuit	System: Automatic transaxle

subject: ATM 3rd Hold – TPS(Throttle position Sensor)

1) Trouble Condition:

1. Abnormal shock shift on driving.
2. At engine idling shifting lever shift to “R” & “D” Normal

2) Trouble Cause:

1. Abnormal TPS(Throttle Position Sensor)

3) Trouble Diagnosis:

1. Check G- Scan ATM & Engine = No trouble found
2. Check Current Data from ATM = Ok
3. Check Current data from engine TPS = Abnormal
4. Check with good TPS,
   = make Road test the problem disappeared.

4) Trouble Repair:

1. Replace with good TPS 
2. MORE STUDY