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.

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Политика конфиденциальности