Kia Sedona (2008 year). Manual - part 99

SIGNAL WAVEFORM 

Fig. 45: Signal Waveform Graph 
Courtesy of KIA MOTORS AMERICA, INC. 

MONITOR SCAN TOOL DATA 

1. Connect scan tool to data link connector (DLC).  

2. Engine "ON".  

3. Monitor the "ENGINE SPEED, INPUT SPEED SENSOR, OUTPUT SPEED SENSOR, GEAR 

POSITION" parameter on the scan tool.  

4. Perform the "STALL TEST" with gear position "1" 

Specification: 2200-2900 engine RPM 

Fig. 46: Scan Tool Display - Engine RPM

1st gear ratio | > or = 200rpm  

Diagnostic Time 



more than 4sec  

Fail Safe 



Locked into 3rd gear  

 

2008 Kia Sedona EX 

2008 TRANSMISSION Automatic Transaxle System - Sedona

  

Microsoft 

 

Monday, May 24, 2010 3:47:53 PM

Page 55 

© 2006 Mitchell Repair Information Company, LLC. 

Courtesy of KIA MOTORS AMERICA, INC.

OPERATING ELEMENT OF EACH SHIFTING RANGE  

OPERATING ELEMENT OF EACH SHIFTING RANGE 

Low & Reverse Brake is released When the vehicle speed over the 5 MPH (7 km/h). 

Stall test procedure in D1 and reason  

Procedure 

1. Warm up the engine.  

2. After positioning the select lever in "D", depress the foot brake pedal fully after that, depress the 

accelerator pedal to the maximum. 

* The slippage of 1st gear operating parts can be detected by stall test in D 

Reason for stall test 

1. If there is no mechanical defaults in A/T, all slippages occur in torque converter.  

2. Therefore, engine revolution is output, but input and output speed revolution must be "zero" due to 

wheel's lock.  

3. If 1st gear operating part has faults, input speed revolution will be out of specification.  

4. If output speed revolution is output. It means that the foot brake force is not applied fully. 

Remeasuring is required.  

5. Is "STALL TEST" within specification? 

YES  



Go to "SIGNAL CIRCUIT INSPECTION" procedure.  

NO  

GEAR 

POSITION

ELEMENT

L/R 

BRAKE

2ND 

BRAKE

U/D 

CLUTCH

O/D 

CLUTCH

RED 

BRAKE

DIR 

CLUTCH

REV 

CLUTCH 0WC1 0WC2

1st

o

 

o

 

o

 

 

•

•

2nd

 

o

o

 

o

 

 

 

•

3rd

 

 

o

o

o

 

 

 

•

4th

 

o

 

o

o

 

 

 

•

5th

 

o

 

o

 

o

 

 

 

REV

o

 

 

 

o

 

o

 

 

N, P

o

 

 

 

o

 

 

 

 

 

2008 Kia Sedona EX 

2008 TRANSMISSION Automatic Transaxle System - Sedona

  

Microsoft 

 

Monday, May 24, 2010 3:47:53 PM

Page 56 

© 2006 Mitchell Repair Information Company, LLC. 



Go to "COMPONENT INSPECTION" procedure.  

SIGNAL CIRCUIT INSPECTION 

1. Connect Scan tool.  

2. Engine "ON".  

3. Monitor the "INPUT & OUTPUT SPEED SENSOR" parameter on the scan tool.  

4. Accelerate the Engine speed until about 2000 RPM in the 1st gear. 

Specification: INPUT SPEED - (OUTPUT SPEED x GEAR RATIO) < or = 200 RPM 

Fig. 47: Scan Tool Display - Engine RPM 
Courtesy of KIA MOTORS AMERICA, INC. 

5. Does "INPUT & OUTPUT SPEED SENSOR" within specifications? 

CAUTION:

1. Do not let anybody stand in front of or behind the vehicle while 

this test is being carried out.  

2. Check the A/T fluid level and temperature and the engine 

coolant temperature. 



Fluid level: At the hot mark on the oil level gauge.  



Fluid temperature: 176-212°F (80-100°C).  



Engine coolant temperature: 176-212°F (80-100°C).  

3. Chock both rear wheel (left and right).  

4. Pull the parking brake lever on with the brake pedal fully 

depressed.  

5. The throttle should not be left fully open for more than eight 

second.  

6. If stall test is being performed more than once, move the 

selector lever to `V' and run the engine at 1000 RPM to allow the 
transaxle fluid to cool prior to subsequent tests.  

 

2008 Kia Sedona EX 

2008 TRANSMISSION Automatic Transaxle System - Sedona

  

Microsoft 

 

Monday, May 24, 2010 3:47:53 PM

Page 57 

© 2006 Mitchell Repair Information Company, LLC. 

YES  



Go to "COMPONENT INSPECTION" procedure.  

NO  



Check for electrical noise of circuit in INPUT & OUTPUT SPEED SENSOR or Replace INPUT & 
OUTPUT SPEED SENSOR. Repair as necessary and Go to "VERIFICATION OF VEHICLE 
REPAIR" procedure.  

COMPONENT INSPECTION 

Fig. 48: Identifying Oil Pressure Gauge To "UD" And "L/R" Port 
Courtesy of KIA MOTORS AMERICA, INC. 

1. Connect oil pressure gauge to "UD" and "L/R" and "RED" port.  

2. Engine "ON".  

3. Drive a car with gear position 1 in "SPORTS MODE".  

4. Compare it with reference data. See OIL PRESSURE SPECIFICATION CHART. 

OIL PRESSURE SPECIFICATION CHART 

LEVER 

POSITION

INPUT 

SPEED

VFS 

CURRENT

SOLENOID VALVE DUTY (%)

ELEMENT P (MPa)

LR

DCC

2ND

UD

OD

RED 

(1)

D

2500 

RPM

200 mA

0

0

100

0

100

0

LR

1.03±0.02

?

?

?

60

?

?

?

?

?

0.52±0.04

?

?

?

75

?

?

?

?

?

0.23±0.04

?

?

?

100

?

?

?

?

?

0

?

?

?

100

?

0

0

100

0

2ND

1.03 

±0.02

?

?

?

?

?

60

?

?

?

0.55±0.04

 

2008 Kia Sedona EX 

2008 TRANSMISSION Automatic Transaxle System - Sedona

  

Microsoft 

 

Monday, May 24, 2010 3:47:53 PM

Page 58 

© 2006 Mitchell Repair Information Company, LLC.