Kia Sedona (2008 year). Manual - part 105

Damper Clutch Control Solenoid Valve (DCCSV) and hydraulic pressure is applied to the DC according to the 
DCC duty ratio value. When the duty ratio is high, high pressure is applied and the Damper Clutch is locked. 
The normal operating range of the Damper Clutch Control duty ratio value is from 30% (unlocked) to 85% 
(locked). 

DTC DESCRIPTION 

The PCM/TCM increases the duty ratio to engage the Damper Clutch by monitoring slip RPMs (difference 
value between engine speed and turbine speed). To decrease the slip of the Damper Clutch, the PCM/TCM 
increases the duty ratio by applying more hydraulic pressure. When slip RPM does not drop with 100% duty 
ratio, the PCM/TCM determines that the Torque Converter Clutch is stuck OFF and sets this code. 

DTC DETECTING CONDITION 

DTC DETECTING CONDITION CHART 

MONITOR SCAN TOOL DATA 

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

2. Engine "ON".  

3. Select "D RANGE" and drive vehicle.  

4. Monitor the "TORQUE CONVERTER (DAMPER) CLUTCH" parameter on the scan tool. 

Specification: TCC SLIP < 160 RPM (in condition that TCC SOL. DUTY > 80% ) 

Item

Detecting Condition

Possible cause

DTC Strategy 



Stuck "OFF"  

TORQUE CONVERTER 
(DAMPER) CLUTCH: TCC 



Faulty TCC or oil pressure 
system  



Faulty TCC solenoid valve  



Faulty body control valve  



Faulty PCM/TCM  

Enable Conditions 



Always (in TCC apply 
mode )  

Threshold value 



TCC duty > 0% or TCC 
abnormal slip counter > or = 
4  

Diagnostic Time 



1 second  

Fail Safe 



Damper clutch abnormal 
system (If diagnosis code 
P0741 is output four times, 
TORQUE CONVERTER 
(DAMPER) CLUTCH is not 
controlled by PCM/TCM)  

 

2008 Kia Sedona EX 

2008 TRANSMISSION Automatic Transaxle System - Sedona

  

Microsoft 

 

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

Page 79 

© 2006 Mitchell Repair Information Company, LLC. 

Fig. 67: Scan Tool Display - DCCSV Duty 
Courtesy of KIA MOTORS AMERICA, INC. 

5. Are "TCC SOLENOID DUTY and TCC SLIP" within specifications? 

YES  



Fault is intermittent caused by poor contact in the sensor's and/or TCM (PCM)'s connector or was 
repaired and TCM (PCM) memory was not cleared. Thoroughly check connectors for looseness, 
poor connection, bending, corrosion, contamination, deterioration or damage. Repair or replace as 
necessary and go to "VERIFICATION OF VEHICLE REPAIR" procedure.  

NO  



Go to "COMPONENT INSPECTION" procedure.  

COMPONENT INSPECTION 

1. CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE 

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 tone for using TCC SOLENOID VALVE actuator testing function? 

YES  



Go to step 2.  

NO  



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

 

2008 Kia Sedona EX 

2008 TRANSMISSION Automatic Transaxle System - Sedona

  

Microsoft 

 

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

Page 80 

© 2006 Mitchell Repair Information Company, LLC. 

2. CHECK OIL PRESSURE 

Fig. 68: Identifying Oil Pressure Gauge To "DA" Ports 
Courtesy of KIA MOTORS AMERICA, INC. 

1. Connect oil pressure gauge to "DA" ports.  

2. Engine "ON".  

3. After connecting scan tool and monitor the "TCC SOLENOID VALVE DUTY" parameter on the 

scan tool data list.  

4. Operate vehicle with 3rd or 4th gear and operate the "TCC SOLENOID VALVE DUTY" more 

than 85%. 

Specification : 

Oil pressure gauge approx 735.4960 kPa (7.5kg/cm

2

 ) - (in condition that TCC SOL. DUTY > 

85%) 

5. Is oil pressure value within specification? 

YES  



Repair TORQUE CONVERTER CLUTCH (REPLACE Torque Converter) as necessary and 
go to "VERIFICATION OF VEHICLE REPAIR" procedure.  

NO  



Replace A/T assembly (or valve body assembly) as necessary and go to "VERIFICATION 
OF VEHICLE REPAIR" procedure.  

VERIFICATION OF VEHICLE REPAIR 

After a repair, it is essential to verify that the fault has been corrected.

 

2008 Kia Sedona EX 

2008 TRANSMISSION Automatic Transaxle System - Sedona

  

Microsoft 

 

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

Page 81 

© 2006 Mitchell Repair Information Company, LLC. 

1. Connect scan tool and select "Diagnostic Trouble Codes (DTCs)" mode.  

2. Using a scan tool, Clear DTC.  

3. Operate the vehicle within DTC Enable conditions in General information.  

4. Are any DTCs present ? 

YES  



Go to the applicable troubleshooting procedure.  

NO  



System performing to specification at this time.  

DTC P0742 TORQUE CONVERTER CLUTCH CIRCUIT - STUCK ON 

GENERAL DESCRIPTION 

Refer to DTC P0741. 

DTC DESCRIPTION 

The TCM increases the duty ratio to engage the Damper Clutch by monitoring the slip RPMs (difference value 
between engine speed and turbine speed). If a very small amount of slip RPM is maintained though the TCM 
applies 0% duty ratio value, then the TCM determines that the Torque Converter Clutch is stuck ON and sets 
this code. 

DTC DETECTING CONDITION 

DTC DETECTING CONDITION CHART 

Item

Detecting Condition

Possible cause

DTC Strategy 



Stuck "ON"  



TORQUE CONVERTER 
(DAMPER) CLUTCH: TCC 



Faulty TCC or oil pressure 
system  



Faulty TCC solenoid valve  



Faulty body control valve  



Faulty TCM(PCM)  

Enable Conditions 



Throttle position > 20%  



Output speed > 500 RPM  



Manifold air pressure > 60 
kPa  



A/T range switch D, SP  



TCC stuck on delay timer > 5 
sees  

Threshold value 



| Engine RPM - Input speed 
sensor RPM | < or = 20 RPM 

Diagnostic Time 



More than 1sec  



Damper clutch abnormal 
system (If diagnosis code 

 

2008 Kia Sedona EX 

2008 TRANSMISSION Automatic Transaxle System - Sedona

  

Microsoft 

 

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

Page 82 

© 2006 Mitchell Repair Information Company, LLC.