Kia Sedona (2008 year). Manual - part 108

NO  



Check for open in harness. Repair as necessary and go to "VERIFICATION OF VEHICLE 
REPAIR" procedure.  

2. Check signal circuit short inspection 

1. Ignition "OFF".  

2. Disconnect "A/T SOLENOID VALVE" connector and "PCM/TCM" connector.  

3. Measure resistance between terminal "9" of the ATM SOLENOID VALVE harness and chassis 

ground. 

Specification: Infinite 

Fig. 77: Measuring Resistance Between Terminal ATM Solenoid Valve Harness And Chassis 
Ground 
Courtesy of KIA MOTORS AMERICA, INC. 

4. Is resistance within specifications? 

YES  



Go to "COMPONENT INSPECTION" procedure.  

NO  



Check for short to ground in harness. Repair as necessary and go to "VERIFICATION OF 
VEHICLE REPAIR" procedure.  

COMPONENT INSPECTION 

1. CHECK SOLENOID VALVE 

1. Ignition "OFF".  

2. Disconnect "A/T SOLENOID VALVE" connector.  

3. Measure resistance between terminal "6" and terminal "9" of the ATM SOLENOID VALVE 

harness connector. 

Specification: Approximately 2.7-3.4 ohms [20°C (68°F)]

 

2008 Kia Sedona EX 

2008 TRANSMISSION Automatic Transaxle System - Sedona

  

Microsoft 

 

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

Page 91 

© 2006 Mitchell Repair Information Company, LLC. 

Fig. 78: Measuring Resistance Between Terminal And ATM Solenoid Valve Harness 
Connector 
Courtesy of KIA MOTORS AMERICA, INC. 

4. is resistance within specification? 

YES  



Go to step 2.  

NO  



Replace TCC SOLENOID VALVE as necessary and go to "VERIFICATION OF 
VEHICLE REPAIR" procedure.  

2. CHECK PCM/TCM 

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

2. Ignition "ON" & Engine "OFF".  

3. Select A/T solenoid valve actuator test and operate actuator test.  

4. Can you hear operating sound for TCC SOLENOID VALVE actuator testing function? 

YES  



Go to "VERIFICATION OF VEHICLE REPAIR" procedure.  

NO  



Replace PCM/TCM as necessary and go to "VERIFICATION OF VEHICLE REPAIR" 
procedure.  

ACTUATOR TEST CONDITION  

1. IG SWITCH ON  

2. TRANSAXLE RANGE SWITCH is normal  

3. P RANGE  

4. Vehicle Speed 0 MPH (0 km/h)  

5. Throttle position sensor < 1V  

 

2008 Kia Sedona EX 

2008 TRANSMISSION Automatic Transaxle System - Sedona

  

Microsoft 

 

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

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© 2006 Mitchell Repair Information Company, LLC. 

6. IDLE SWITCH ON  

7. ENGINE RPM 0  

VERIFICATION OF VEHICLE REPAIR 

Refer to DTC P0741. 

DTC P0748 PRESSURE CONTROL SOLENOID VALVE A - ELECTRICAL 

COMPONENT LOCATION 

Fig. 79: Pressure Control Solenoid Valve Component Location 
Courtesy of KIA MOTORS AMERICA, INC. 

GENERAL DESCRIPTION 

Variable Force Solenoid (Linear Solenoid): With the duty control which uses higher frequency (600Hz), instead 
of the existing PWM type which adapts low frequency (60Hz) to control, spool valve can be controlled 
precisely. 

In PWM control, the amount of oil flow is determined by the duration of "ON "signal among continuously 
repeated ON/OFF signals. 

In VFS, the amount is decided by the width of the oil passage. 

DTC DESCRIPTION 

The TCM checks the VFS Control Signal by monitoring the feedback signal from the solenoid valve drive 
circuit. If an unexpected signal is monitored (for example, high voltage is detected when low voltage is 
expected, or low voltage is detected when high voltage is expected), the TCM judges that the Low and Reverse 
control solenoid circuit is malfunctioning and sets this code. 

DTC DETECTING CONDITION 

DTC DETECTING CONDITION CHART 

 

2008 Kia Sedona EX 

2008 TRANSMISSION Automatic Transaxle System - Sedona

  

Microsoft 

 

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

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© 2006 Mitchell Repair Information Company, LLC. 

SPECIFICATION 

Refer to DTC P0743. 

SCHEMATIC DIAGRAM 

Refer to DTC P0743. 

SIGNAL WAVEFORM 

Fig. 80: Signal Waveform Graph 
Courtesy of KIA MOTORS AMERICA, INC. 

MONITOR SCAN TOOL DATA 

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

Item

Detecting Condition

Possible cause

DTC Strategy 



Check voltage range  



Open or short in circuit  



Faulty VFS SOLENOID 
VALVE  



Faulty PCM/TCM  

Enable Conditions 



16V > Voltage Battery > 
11V  



In gear state (no gear 
shifting) 500 msec is passed 
from turn on the relay  



A/T Relay = ON  



Engine state = RUN  

Threshold value 



Out of available voltage 
range  



Diagnostic Time  



More than 5seconds  

Fail Safe 



Locked in 3rd gear (Control 
relay off)  

 

2008 Kia Sedona EX 

2008 TRANSMISSION Automatic Transaxle System - Sedona

  

Microsoft 

 

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

Page 94 

© 2006 Mitchell Repair Information Company, LLC.