Diagnostic Procedure

WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

DIAGNOSTIC PROCEDURE

Step	Check	Yes	No
1 CHECK SECONDARY AIR COMBINATION VALVE. Remove the secondary air combination valve. < Refer to SECONDARY AIR COMBINATION VALVE . > Blow in air from the secondary air combination valve air inlet, and check whether there are leaks at the pipe connections.	Are there air leaks from the pipe connections?	Replace the secondary air combination valve on the side with the air leak. < Refer to SECONDARY AIR COMBINATION VALVE . >	Perform the diagnostic procedure of P2440. < Refer to DTC P2440 SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE STUCK OPEN (BANK1) , Diagnostic Procedure with Diagnostic Trouble Code (DTC). >