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P0768 Shift Control Solenoid Valve "D" Electrical (OD/C)

AutoHex Online Help: Hyundai SANTAFE(CM) 2010
Component Location
General Description

PCM/TCM control OD-VFS solenoid valve by changed current for reducing OD clutch shock.



DTC Description

This code is set when circuit open or short detected by PCM/TCM.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

Monitoring voltage range(Circuit open/short check)

Circuit open or short

OD-VFS solenoid

PCM/TCM

Enable Conditions

Completely opened or closed

Gaer tightening

After change of speed > 0.3sec

10V < Solenoid supplied power < 16V

Threshold value

50mA = Feedback current(Circuit short) = 550mA at operating

50mA > Feedback current (Circuit open ) at operating

Detecting Time

More than 0.2sec

Fail safe

Locked into 4th gear

Specification
Operating step table at each status

Solenoid

SS-A

SS-B

OD

N-H

35R

N-H

UD

N-H

26

N-L

N,P

?

?

?

?

1st

?

?

?

2nd

?

?

?

3rd

?

?

4th

?

5th

?

?

6th

?

?

?

L

?

?

REV

?

?

?

?

? : Connected status

? : Connedted at Vehicle speed above 8km/h

Clutch

Brake

35R

OD C

26 B

UD B

LR B

O.W.

P,N

?

R

?

?

D1

?

?

?

D2

?

?

D3

?

?

D4

?

?

D5

?

?

D6

?

?

? : Operated at Vehicle speed under 5km/h

Working temperature : -40?~150?

Internal resistance : 5.1 ± 0.3 O( 25? normal temperature )

Diagnostic Circuit Diagram
Signal Waveform & Data

Fig 1) Wave form of OD/C-VFS