AWD Warning Light Display: Operation

WARNING: This page is about a different car, the 2012 Subaru Outback and 2012 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.

AWD light illuminates or blinks, when the AWD is in special control condition and AWD has malfunction.

When normal
AWD light always illuminates when the ignition switch is ON (engine OFF). Light goes off after two seconds from engine ON.
When FF mode is selected
AWD light illuminates, when the AWD ON/OFF switching function is "FF mode" with engine ON.
When malfunction is detected
AWD light blinks at 2 Hz when any of following malfunctions are detected with engine ON.
1. When tire with different diameter is installed, or air pressure of any of four wheels is excessively low
2. When "Rear differential inspection mode" is judged as NG Refer to REAR DIFFERENTIAL INSPECTION MODE .
  
  Fig 1: AWD Warning Light Display On/Off Pattern
  Courtesy of SUBARU OF AMERICA, INC.
  
  If the AWD light does not illuminate, or illumination patterns are not as above, check the AWD light circuit. Refer to , INSPECTION , AWD Warning Light Display.