Description of Functions

Description of functions

1. Diagnosis function
(1) The check engine warning light illuminates when a malfunction occurs in the AT system.

CAUTION:
The light goes off if the malfunction item returns to the normal state. However, diagnostic codes are recorded.

(2) Diagnostic results of malfunction occurrence are recorded in the transmission control computer.

CAUTION:
Do not disconnect the MAIN fuse, AT+B fuse, and battery terminal until the check finishes to prevent the data stored in the computer from being cleared.

2. Fail safe function
(1) When there is an open or short circuit in any solenoid valve system, only the mechanical hydraulic circuit operates and the manual shift control is initiated. (When open and short circuits occur, the transmission control computer stops continuity of all solenoid valves.)