Rear Gate (Wagon)

Disconnect rear gate switch harness connector. Check continuity between rear gate switch terminals. SeeFig 1 . If continuity does not exist between any terminals, go to next step. If continuity exists between any terminals, replace rear gate switch.
Insert key into rear gate lock cylinder and turn key to lock position. Check continuity between terminals No. 1 and 4. If continuity exists, go to next step. If continuity does not exist, replace rear gate switch.
Turn key to unlock position and check continuity between terminals No. 2 and 4. If continuity does not exists, replace rear gate switch. If continuity exists, rear gate switch is okay at this time.

Fig 1: Identifying Rear Gate Switch, Door Lock/Unlock Switch & Security Light Terminals

Courtesy of SUBARU OF AMERICA, INC.