AT OIL TEMP Warning Light Display: Operation

The AT OIL TEMP light illuminates or blinks, when the ATF temperature is high and malfunction occurs in CVT.

• When normal

  AT OIL TEMP light always illuminates when the ignition switch is ON (engine OFF). Light goes off after two seconds from engine ON.

• When ATF temperature is high

  AT OIL TEMP light illuminates when the ATF temperature is abnormally high with engine ON.

• When malfunction is detected

  AT OIL TEMP light blinks at 2 Hz when the TCM detects the malfunction of CVT with engine ON. In this case, inspect using "Diagnostic Procedure with Diagnostic Trouble Code (DTC)". Refer to , DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC) .

• When AT learning is not finished

  AT OIL TEMP light repeats "Blinking at 4 Hz → Turning OFF &" every two seconds, when the AT learning is not finished with engine ON. In this case, perform the "Learning". (During AT learning, the light blinks at 2 Hz or illuminates.) Refer to , LEARNING CONTROL .

  Fig 1: AT Oil Temp Warning Light Display On Off Pattern

  Courtesy of SUBARU OF AMERICA, INC.

  IF the AT OIL TEMP light does not illuminate, or illumination patterns are not as above, check the AT OIL TEMP light circuit. Refer to , INSPECTION , AT OIL TEMP Warning Light Display.