Hyundai Santa Fe (2006 year). Manual — part 56
AT -176
AUTOMATIC TRANSAXLE (F4A51)
VFS(VARIABLE FORCE
SOLENOID) VALVE
DESCRIPTION
E95DAC46
ACTUATORS
Solenoid Valve for Pressure Control
- Sensor type: Normal open 3-way
- Operating temperature : -30 C∼130 C(-22 F~266 F)
- Frequency:
LR, 2ND, UD, OD: 61.27Hz (at the ATF temp.
above
-20 C(-4 F))
DCC: 30.64Hz
- Internal resistance:
3.0 ± 0.5 Ω (LR, 2ND, UD, OD, TCC)
4.35 ± 0.5 Ω (VFS)
- Surge voltage: 56 V (Except VFS)
(VFS)
Control
Supply
Exhaust
EKRF082A
LOCATION
Overdrive
solenoid valve
Underdrive
solenoid valve
Second
solenoid valve
Damper clutch
solenoid valve
(Torque converter
clutch solenoid
valve)
Low & reverse
solenoid valve
Oil temperature
sensor
VFS
solenoid valve
EKRF018K
AUTOMATIC TRANSAXLE CONTROL SYSTEM
AT -177
VFS CONTROL PRESSURE
Control Pressure (No line pressure)
Increasing Current
Decreasing Current
Input Current(mA)
MAX. (Kgf/ ㎠ )
[ Kpa]
MIN. (Kgf/ ㎠ )
[ Kpa]
△ (Kgf/㎠) [Kpa]
MIN. (Kgf/ ㎠ )
[ Kpa]
100
6.52[639]
5.87[575]
[ 64 ]
200
6.23[611]
5.70[559]
[ 52 ]
5.43[532]
300
5.76[564]
5.24[514]
[ 50 ]
4.49[484]
400
5.08[498]
4.59[450]
[ 48 ]
4.30[421]
500
4.24[416]
3.78[370]
[ 46 ]
3.52[345]
700
2.29[224]
1.82[178]
[ 46 ]
1.51[148]
800
1.41[138]
0.09[88]
[ 50 ]
0.58[57]
900
0.65[ 64]
0.14[14]
[ 50 ]
0 [ 0 ]
1,000
0.24[ 24]
0 [ 0 ]
[ 24 ]
1,100
0.24[ 24]
0 [ 0 ]
[ 24 ]
*Test condition:
Ps : Supply Pressure (Ps=7.1 ± 0.3 KGf/㎠)
Pc : Control Pressure
Pex : Exhaust Pressure (Atmosphere pressure)
ATF : DIAMOND ATF SP-Ⅲ
ATF temperature : 30 ± 3 C (86 F)
- Coil resistance : 4.35 ± 35Ω
- Dither Frequency : 600 ± 20Hz
In case of VFS solenoid valve, the relation between Duty
and oil pressure can’t be expressed.
AT -178
AUTOMATIC TRANSAXLE (F4A51)
INSPECTION
E976C1C7
1.
If the value is out of specification according to the
chart below, remove the valve body cover.
Overdrive
solenoid valve
Underdrive
solenoid valve
Second
solenoid valve
Damper clutch
solenoid valve
(Torque converter
clutch solenoid
valve)
Low & reverse
solenoid valve
Oil temperature
sensor
VFS
solenoid valve
EKRF011A
2.
Measure the resistance again after disconnecting so-
lenoid valve connector.
Specification (20 C):
4.3 ~ 4.4Ω (VFS)
1
2
EKRF011B
3.
If the value is out of specification replace the solenoid
valve.
Pin No.
Name
Resistance
7 & 8
VFS
4.3~4.4Ω (20 C)
EKRF011C
AUTOMATIC TRANSAXLE CONTROL SYSTEM
AT -179
INPUT SPEED SENSOR
DESCRIPTION
E4C6DCFB
INPUT SHAFT SPEED SENSOR
- Type: Hall sensor
- Current consumption: 22mA (MAX.)
- Sensor body and sensor connector have been unified as
one.
Input shaft speed sensor
Output shaft speed sensor
Transfer driven gear
UD clutch retainer
View A
1 : Ground
2 : Sensor signal
3 : IG1 (B+)
“A”
EKRF018A
HALL TYPE SENSOR: SPECIFICATION
Air gap (mm)
Input shaft speed sensor
1.3
Coil Resistance
Input shaft speed sensor
over 1MΩ
High
4.8~5.2V
Peak-Peak Voltage
Low
0.8V
WAVE FORM WITH HIGH-SCAN
1.0V
CH B
5.0V
CH A
HOLD
CURS
TRIG MXMN GRID CLR
0.5mS
EKRF018B
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