Kia Carnival (2009+). Instruction — part 306

Reverse GEAR POWER FLOW

Hydraulic pressure is applied to the reverse clutch(A) and the LR brake(B), then the reverse clutch transmits driving
force from the input shaft to the reverse sun gear, and the LR brake locks the LR annulus gear and OD planetary
carrier to the case.The reverse clutch drives the reverse sun gear, and the reverse sun gear drives the output carrier
through the OD pinion gear, and the output carrier drives the transfer drive gear, and the transfer drive gear drives the
transfer driven gear of the output shaft, and power is transmitted to the differential gear through the differential drive
gear.

2009 > G 2.7 DOHC >

TROUBLESHOOTING

DIAGNOSIS FLOW

INSPECTION CHART FOR TROUBLE SYMPTOMS

Trouble symptom

Probable cause

Communication with HI-SCAN is not possible
If communication with the HI-SCAN is not possible, the cause is
probably a defective diagnosis line or the TCM(PCM) is not
functioning.

- Malfunction diagnosis line
- Malfunction of connector
- Malfunction of the TCM(PCM)

functioning.

- Malfunction of the TCM(PCM)

Driving impossible

Starting impossible
Starting is not possible when the selector
lever is in P or N range. In such cases, the
cause is probably a defective engine system,
torque converter or oil pump.

- Malfunction of the engine system
- Malfunction of the torque converter
- Malfunction of the oil pump

Does not move forward
If the vehicle does not move forward when
the selector lever is shifted from N to D, 3, 2
or L range while the engine is idling, the
cause is probably abnormal line pressure or a
malfunction of the underdrive clutch or valve
body.

- Abnormal line pressure
- Malfunction of the underdrive solenoid

valve

- Malfunction of the underdrive clutch
- Malfunction of the valve body

Does not reverse
If the vehicle does not reverse when the
selector lever is shifted from N to R range
while the engine is idling, the cause is
probably abnormal pressure in the reverse
clutch or low and reverse brake or a
malfunction of the reverse clutch, low and
reverse brake or valve body.

- Abnormal reverse clutch pressure
- Abnormal low and reverse brake pressure
- Malfunction of the low and reverse brake

solenoid valve

- Malfunction of the reverse clutch
- Malfunction of the low and reverse brake
- Malfunction of the valve body

Does not move (forward or reverse)
If the vehicle does not move forward or
reverse when the selector lever is shifted to
any position while the engine is idling, the
cause is probably abnormal line pressure or a
malfunction of the power train, oil pump or
valve body.

- Abnormal line pressure
- Malfunction of power train
- Malfunction of the oil pump
- Malfunction of the valve body

Malfunction when
starting

Engine stalling when shifting
If the engine stalls when the selector lever is
shifted from N to D or R range while the
engine is idling, the cause is probably a
malfunction of the engine system, damper
clutch solenoid valve, valve body or torque
converter (damper clutch malfunction).

- Malfunction of the engine system
- Malfunction of the damper clutch control

solenoid valve

- Malfunction of the valve body
- Malfunction of the torque converter

(Malfunction of the damper clutch)

Shocks when changing from N to D and
large time lag
If abnormal shocks or a time lag of 2 seconds
or more occur when the selector lever is
shifted from N to D range while the engine is
idling, the cause is probably abnormal
underdrive clutch pressure or a malfunction of
the underdrive clutch, valve body or idle
position switch.

- Abnormal underdrive clutch pressure
- Abnormal low and reverse brake pressure
- Malfunction of the underdrive solenoid

valve

- Malfunction of the valve body
- Malfunction of the idle position switch

Malfunction when
starting

Shocks when changing from N to R and
large time lag
If abnormal shocks or a time lag of 2 seconds
or more occur when the selector lever is
shifted from N to R range while the engine is
idling, the cause is probably abnormal reverse
clutch pressure or low and reverse brake
pressure, or a malfunction of the reverse
clutch, low and reverse brake, valve body or
idle position switch.

- Abnormal reverse clutch pressure
- Abnormal low and reverse brake pressure
- Malfunction of the low and reverse

solenoid valve

- Malfunction of the reverse clutch
- Malfunction of the low and reverse brake
- Malfunction of the valve body
- Malfunction of the idle position switch

Shocks when changing from N to D, N to
R and large time lag
If abnormal shocks or a time lag of 2 seconds
or more occur when the selector lever is
shifted from N to D range and from N to R
range while the engine is idling, the cause is
probably abnormal line pressure or a
malfunction of the oil pump or valve body.

- Abnormal line pressure
- Malfunction of the oil pump
- Malfunction of the valve body

Malfunction when
shifting

Shocks and running up
If shocks occur when driving due to up
shifting or down shifting and the transmission
speed becomes higher than the engine
speed, the cause is probably abnormal line
pressure or a malfunction of a solenoid valve,
oil pump, valve body or of a brake or clutch.

- Abnormal line pressure
- Malfunction of each solenoid valve
- Malfunction of the oil pump
- Malfunction of the valve body
- Malfunction of each brake or each clutch

Displaced shifting
points

All points
If all shift points are displaced while driving,
the cause is probably a malfunction of the
output shaft speed sensor, TPS or of a
solenoid valve.

- Malfunction of the output shaft speed

sensor

- Malfunction of the throttle position sensor
- Malfunction of each solenoid valve
- Abnormal line pressure
- Malfunction of the valve body
- Malfunction of the TCM(PCM)

Some points
If some of the shift points are displaced while
driving, the cause is probably a malfunction of
the valve body, or it is related to control and
is not an abnormality.

- Malfunction of the valve body

Does not shift

No diagnosis codes
If shifting does not occur while driving and no
diagnosis codes are output, the cause is
probably a malfunction of the transaxle range
switch, or TCM(PCM)

- Malfunction of the transaxle range
- Malfunction of the TCM(PCM)

Malfunction while
driving

Poor acceleration
If acceleration is poor even if down shifting
occurs while driving, the cause is probably a
malfunction of the engine system or of a
brake or clutch.

- Malfunction of the engine system
- Malfunction of the brake or clutch

Malfunction while
driving

Vibration
If vibration occurs when driving at constant
speed or when accelerating and deceleration
in top range, the cause is probably abnormal
damper clutch pressure or a malfunction of
the engine system, damper clutch control
solenoid valve, torque converter or valve
body.

- Abnormal damper clutch pressure
- Malfunction of the engine system
- Malfunction of the damper clutch control

solenoid valve

- Malfunction of the torque converter
- Malfunction of the valve body

Transaxle range switch system
The cause is probably a malfunction of the inhibitor switch circuit,
ignition switch circuit or a defective TCM(PCM).

- Malfunction of the transaxle range switch
- Malfunction of the ignition switch
- Malfunction of connector
- Malfunction of the TCM(PCM)

Idle position switch system
The cause is probably a defective idle position switch circuit, or a
defective TCM(PCM).

- Malfunction of the triple pressure switch
- Malfunction of connector
- Malfunction of the TCM(PCM)