Reverse Position

The TCM controls the solenoid valves. The conditions of the solenoid valve and positions of the solenoid valve are as follows :

• The LR solenoid valve is turned off, and the LR pressure solenoid valve is moved to the left side.
• The 2nd solenoid valve is turned on, and the 2nd pressure solenoid valve remains in the right side.
• The UD solenoid valve is turned on, and the UD pressure solenoid valve remains in the right side.
• The OD solenoid valve is turned on, and the OD pressure solenoid valve remains in the right side.
• The line pressure through the manual valve is supplied to the reverse clutch and the fail-safe valve B.
• The line pressure is supplied to each element (fail-safe valve B, switch valve, DCCV, LR solenoid valve, LR pressure control valve).
• The fail-safe valve B moves to the left side by the line pressure.
• The switch valve moves to left side by the line pressure, and the line pressure through the LR pressure control valve is supplied to the LR brake through the fail-safe valve A.
• The line pressure is supplied to the DCCV, so the DCCV remains in the right side.
• The fail-safe valve A moves to the right side by the line pressure through the switch valve.
• The line pressure is supplied to the LR pressure control valve and the LR solenoid valve, and TCM turns off the LR solenoid valve, and the line pressure is supplied to the LR brake through the LR pressure control valve and the switch valve and the fail-safe valve A.
• The regulator valve moves to the right side by the no line pressure through the manual valve, and the line pressure is higher than other range.

Fig 1: TCM Controls Solenoid Valves Reverse Position - Hydraulic Flow Diagram

Courtesy of HYUNDAI MOTOR CO.