Kia Sedona (2008 year). Instruction — part 103
Fig. 59: Identifying Gear 4 Incorrect Ratio Component Location
Courtesy of KIA MOTORS AMERICA, INC.
GENERAL DESCRIPTION
The value of the input shaft speed should be equal to the value of the output shaft speed, when multiplied by the
4th gear ratio, while the transaxle is engaged in the 4th gear. For example, if the output speed is 1,000 RPM and
the 4th gear ratio is 1.233, then the input speed is 1,233 RPM.
DTC DESCRIPTION
This code is set if the value of input shaft speed is not equal to the value of the output shaft, when multiplied by
the 4th gear ratio, while the transaxle is engaged in 4th gear. This malfunction is mainly caused by mechanical
troubles such as control valve sticking or solenoid valve malfunctioning rather than an electrical issue.
DTC DETECTING CONDITION
DTC DETECTING CONDITION CHART
Item
Detecting Condition
Possible cause
DTC Strategy
4th gear incorrect ratio
Faulty Input speed sensor
Faulty output speed sensor
Faulty UD clutch or 2nd
brake
Enable Conditions
Engine speed > 450 RPM
Output speed > 300 RPM
Shift stage 4th. gear
Input speed > 0 RPM
A/T oil temp output > or = -
23°C(-9.4°F)
11V < or = Battery Voltage <
or = 16V
TRANSAXLE RANGE
SWITCH is normal and above
2 sec is passed from IG ON
| input speed - output speed x
2008 Kia Sedona EX
2008 TRANSMISSION Automatic Transaxle System - Sedona
Microsoft
Monday, May 24, 2010 3:47:53 PM
Page 71
© 2006 Mitchell Repair Information Company, LLC.
SIGNAL WAVEFORM
Fig. 60: Signal Waveform Graph
Courtesy of KIA MOTORS AMERICA, INC.
MONITOR SCAN TOOL DATA
Go to "SIGNAL CIRCUIT INSPECTION" procedure.
OPERATING ELEMENT OF EACH SHIFTING RANGE
OPERATING ELEMENT OF EACH SHIFTING RANGE
Low & Reverse Brake is released when vehicle speed over the 5 MPH (7 km/h)
SIGNAL CIRCUIT INSPECTION
Threshold value
4th gear ratio | > or = 200
RPM
Diagnostic Time
More than 4 sec
Fail Safe
Locked into 3rd gear
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 72
© 2006 Mitchell Repair Information Company, LLC.
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 4th gear.
Specification: INPUT SPEED - (OUTPUT SPEED x GEAR RATIO) < or = 200 RPM
Fig. 61: Scan Tool Display - Engine RPM
Courtesy of KIA MOTORS AMERICA, INC.
5. Is "INPUT & OUTPUT SPEED SENSOR" within specifications?
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
2008 Kia Sedona EX
2008 TRANSMISSION Automatic Transaxle System - Sedona
Microsoft
Monday, May 24, 2010 3:47:53 PM
Page 73
© 2006 Mitchell Repair Information Company, LLC.
Fig. 62: Identifying Connect Oil Pressure Gauge To "2nd" And "OD" Port
Courtesy of KIA MOTORS AMERICA, INC.
1. Connect oil pressure gauge to "2ND" and "OD" and "RED" port.
2. Engine "ON".
3. Drive a car with gear position 4 in "SPORTS MODE".
4. Compare it with reference data .
Specification: refer to DTC P0731.
5. Is oil pressure value within specifications?
YES
Repair AUTO TRANSAXLE (Clutch or Brake) as necessary and Go to "VERIFICATION OF
VEHICLE REPAIR" procedure.
NO
Replace AUTO TRANSAXLE (BODY CONTROL VALVE faulty) as necessary and Go to
"VERIFICATION OF VEHICLE REPAIR" procedure.
VERIFICATION OF VEHICLE REPAIR
Refer to DTC P0731.
DTC P0735 GEAR 5 INCORRECT RATIO
COMPONENT LOCATION
2008 Kia Sedona EX
2008 TRANSMISSION Automatic Transaxle System - Sedona
Microsoft
Monday, May 24, 2010 3:47:53 PM
Page 74
© 2006 Mitchell Repair Information Company, LLC.
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