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.

• At normal condition

  After turning the ignition switch to ON, illuminates for 2 seconds then goes off.

• When ATF temperature is high

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

• When malfunction is detected

  AT OIL TEMP light blinks at 2 Hz when the TCM detects the malfunction of CVT with the ignition switch ON. In this case, inspect using "Diagnostic Procedure with Diagnostic Trouble Code (DTC)". Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC) 

• When AT learning is not finished

  AT OIL TEMP light repeats "Blinking at 4 Hz →; Turning OFF" when the AT learning is not completed with the ignition switch ON. In this case, perform the "Learning". (During AT learning, the light blinks at 2 Hz or illuminates.) Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS)>LEARNING CONTROL 

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. Ref. to CONTINUOUSLY VARIABLE TRANSMISSION (DIAGNOSTICS)>AT OIL TEMP Warning Light Display>INSPECTION