DIAGNOSIS FUNCTION


WARNING INDICATOR

If a malfunction relating to the A/T system occurs, the symbol (A) will be displayed on the information screen in the multi-information display.
Check if the diagnosis code is set when the symbol (A) continues being displayed in the information screen in the multi information display.
When the symbol (B) is displayed in the information screen in the multi information display, the A/T fluid temperature is high. (Symbol (B) is turned on when the fluid temperature is approximately 140°C or higher and turned off automatically when the fluid temperature drops below approximately 135°C.)
note When A/T fluid becomes a high temperature, control to lower temperature of A/T fluid acts, and "D" is displayed of a run with sports mode by a shift indicator in a multi information display; and normal from sports mode; shifting is replaced automatically. In addition, there is the case that does not accept operation to sports mode. It is control to lower temperature of A/T fluid, and this phenomenon is not trouble. If temperature of A/T fluid falls, A/T returns to normal movement.

ON-BOARD DIAGNOSTICS


The transmission control module (A/T-ECU) monitors its input/output signals (some signals all the time and others under specified conditions). When an irregular signal is initially monitored, the A/T-ECU decides that a malfunction has occurred and records the occurrence as a diagnosis code. There are 45 diagnostic items. The diagnostic results can be read with M.U.T.-III. Diagnosis codes are kept in memory by direct battery feed. The codes are retained in memory even if the ignition switch is in the "LOCK" (OFF) position. Diagnosis codes are not erased even after the battery terminals and the A/T-ECU connector are disconnected. In addition, the diagnosis code can also be erased by M.U.T.-III.
note If a sensor is disconnected when the ignition switch is in the "ON" position, a diagnosis code is stored in memory. In this case, erase the diagnosis code using M.U.T.-III.
The 45 diagnosis items are displayed in numeric order.