Kia Sedona (2008 year). Instruction — 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

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© 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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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.