Hyundai Getz(TB) Impossible to Shift ATM(3rd Hold)=pulse Generator B

Model: Getz	Year model: 2004	Mileage:78524km
Displacement: 1500cc	Fuel: Gasoline	T/A :Auto
N code:Impossible to shift(3rd hold)	C code: Flaw in material	System: Automatic trans. Control System

Subject: Impossible to shift ATM hold to 3rd = pulse Generator

1)  Trouble Condition:

1. Impossible to shift auto transmission(3rd hold).
2. Shock occurence when shifting gear N—>D,N—>R.

2) Trouble Cause:

• Poor pulse Generator(B).

3) Trouble Diagnosis: 

1. Scan tool check
   = Diagnostic Trouble code.

DTC code

P0722

Pulse Generator B (output Speed Sensor)

• = Perform a driving test after erasing the DTC code.
• = The DTC code is Displayed again.

     2   Inspect the oil in Auto transmission – Normal.

         = Transaxle fluid: Genuine Diamond ATF SP-III

     3   Stall test = Normal .
          = Stall speed: 2200 – 2800 rpm
          = Place the selector lever in the “R” position.
     4   Inspect the resistance in pulse generator and wiring contact.

4) Trouble Repair Guide:

1. Normal current data G scan of pulse Generator of A & B
   = PG-A(Input speed)      1532 rpm
   = PG-B(output speed)     968 rpm
2. Pulse Generator circuit.
3. Measure the resistance of output sensor
   = Channel 1 prove (+): Input sensor C02 terminal 4 signal line.
   = Channel 1 prove (-): Input sensor C02 terminal 3 sensor ground.
   =Specification: 245 + or – 30 ohms(Standard 20*c

C02 Terminal.

1. Input speed sensor (+)
2. Input speed sensor (-)
3. Output speed sensor (+)
4. Output speed sensor (-)