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Defroster Switch Light Is Blinking: Wiring Diagram

WARNING: This page is about a different car, the 2012 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Defroster Switch Light Is Blinking - Wiring Diagram
G00522828Courtesy of SUBARU OF AMERICA, INC.
Step Check Yes No
1 CHECK INDICATOR BLINKING. 
Turn the ignition switch to ON.		 Does the indicator blink? Go to step 2  . System is normal.
2 CHECK INDICATOR BLINKING. 
  1. Turn the ignition switch to OFF and wait for 3 minutes.
  2. Turn the ignition switch to ON again.
 Does the indicator blink? Go to step 3  . System is normal.
3 CHECK AUTO A/C CONTROL MODULE POWER CIRCUIT. 
  1. Turn the ignition switch to OFF.
  2. Disconnect the auto A/C control module harness connector.
  3. Measure the voltage between auto A/C control module and chassis ground after turning the ignition switch to the ON position.

Connector & terminal 
(i88) No. 31 (+) - Chassis ground (-): 		 Is the voltage 9 V or less? Check the harness for open or short circuit. Check the battery condition. System is normal.
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