Combination Switch (Wiper): Inspection

WARNING: This page is about a different car, the 2003 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Inspect the continuity between each connector terminal.

Fig 1: Inspecting Continuity Between Each Connector Terminal
Courtesy of SUBARU OF AMERICA, INC.

Fig 2: Combination Switch (Wiper) Continuity Chart
Courtesy of SUBARU OF AMERICA, INC.

If continuity is not as specified, replace the switch.
Intermittent operation inspection

Turn the wiper switch to INT.
Adjust the intermittent control switch to MAX.
Apply battery voltage to switch terminals 16 and 2, and inspect the voltage of terminals 7 and 2. (Measure the voltage from after the second time the wiper stops.)

Fig 3: Inspecting Voltage Pattern

Courtesy of SUBARU OF AMERICA, INC.

If operation is not as specified, replace the switch.