Hyundai Tiburon (2003 year). Manual — part 105

Low-and-reverse brake

LR

Locks low-and-reverse annulus gear and overdrive
planetary carrier

Second brake

2ND

Locks reverse sun gear

INSPECTION PROCEDURE 1

INSPECTION PROCEDURE 2

TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Automatic Transaxle System > Automatic Transaxle System >
Troubleshooting (F4A42-2), TIBURON(GK) > 2003 > G 2.7 V6 DOHC > Automatic Transaxle System > Automatic
Transaxle System > Troubleshooting (F4A42-2)

INSPECTION PROCESS FOR TROUBLE SYMPTOMS

Communication with the scan tool

Possible cause

If communication with the scan tool is not possible, the
cause may be a defective diagnostic trouble line or the TCM
is not functioning.

• Malfunction of diagnostic trouble line

• Malfunction of connector

• Malfunction of the TCM

Starting impossible

Possible cause

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

• Malfunction of the engine system

• Malfunction of the torque converter

• Malfunction of the oil pump

INSPECTION PROCEDURE 3

INSPECTION PROCEDURE 4

Does not move

Possible cause

If the vehicle does not move forward when the selector lever
is shifted from N to D range while the engine is idling, the
cause may be 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

Possible cause

If the vehicle does not reverse when the selector lever is
shifted from N to R range while the engine is idling, the
cause may be 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 solenoid valve

• Malfunction of the reverse clutch

• Malfunction of the low and reverse brake

• Malfunction of the valve body

INSPECTION PROCEDURE 5

INSPECTION PROCEDURE 6

INSPECTION PROCEDURE 7

Does not move (forward or reverse)

Possible cause

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 may be abnormal line pressure, or a
malfunction of the power train, oil pump or valve body.

• Abonormal line pressure

• Malfunction of the underdrive solenoid valve

• Malfunction of the underdrive clutch

• Malfunction of the valve body

Engine stalling when shifting

Possible cause

If the engine stalls when the selector lever is shifted from N
to D or R range while the engine is idling, the cause may be
a malfunction of the engine system, torque converter clutch
soledoid, valve body or torque converter (torque converter
clutch malfunction).

• Malfunction of the engine system

• Malfunction of the torque converter clutch solenoid

• Malfunction of the valve body

• Malfunction of the torque converter (Malfunction of the

torque converter clutch)

Shocks when changing from N to D and range time lag

Possible cause

If abnormal shocks or a time lag of 2 second or more occurs
when the selector lever is shifted from N to D range while

• Abnormal line pressure

• Malfunction of the underdrive solenoid valve