Kia Sedona (2008 year). Manual - part 110

Fig. 85: 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.



Replace "PRESS CONTROL SOL VALVE (VFS)" 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 "PRESS CONTROL SOL VALVE (VFS)" Actuator testing

function?

YES



Go to "VERIFICATION OF VEHICLE REPAIR" procedure.



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 0mph (0km/h)

2008 Kia Sedona EX

2008 TRANSMISSION Automatic Transaxle System - Sedona

Microsoft

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

Page 99

5. Throttle position sensor < 1V

6. IDLE SWITCH ON

7. ENGINE RPM 0

VERIFICATION OF VEHICLE REPAIR

Refer to DTC P0741.

DTC P0750 SHIFT CONTROL SOLENOID VALVE A CIRCUIT MALFUNCTION

COMPONENT LOCATION

Fig. 86: Identifying Shift Control Solenoid Valve Component Location
Courtesy of KIA MOTORS AMERICA, INC.

GENERAL DESCRIPTION

The Automatic transmission changes the gear position of the transmission by utilizing a combination of clutches
and brakes, which are controlled by solenoid valves. This automatic transmission consists of a: LR (Low and
Reverse Brake), 2ND (2nd Brake), UD (Under Drive Clutch), OD (Over Drive Clutch), REV (Reverse Clutch),
and a RED (Reduction Brake, only for 5 speed transmissions). The LR Brake is engaged in the 1st gear and
reverse gear positions.

DTC DESCRIPTION

The TCM checks the Low and Reverse 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

Item

Detecting Condition

Possible cause

DTC Strategy

2008 Kia Sedona EX

2008 TRANSMISSION Automatic Transaxle System - Sedona

Microsoft

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

Page 100

SPECIFICATION

Solenoid Valve for Pressure Control



Sensor type: Normal open 3-way



Operating temperature: -22°F to 266°F (-30°C to 130°C)



Frequency :



LR, 2ND, UD, OD, RED: 61.27Hz (at the ATF temp. -20°C above)



DCC: 30.64Hz



VFS: 600 ± 20Hzs



Internal resistance :



2.7-3.4ohms (68°F or 20°C) - LR, 2ND, UD, OD, RED, DCC



4.35±0.35ohms (68°F or 20°C) - VFS



Surge voltage: 56 V (except VFS)

SCHEMATIC DIAGRAM

Refer to DTC P0743.

SIGNAL WAVEFORM



Check voltage range



Open or short in circuit



Faulty LR 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 5 seconds

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 101

Fig. 87: Signal Waveform Graph
Courtesy of KIA MOTORS AMERICA, INC.

MONITOR SCAN TOOL DATA

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

2. Engine "ON".

3. Monitor the "LR SOL. VALVE" parameter on the scan tool.

4. Shift gear at each position.

2008 Kia Sedona EX

2008 TRANSMISSION Automatic Transaxle System - Sedona

Microsoft

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

Page 102

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