Combination Switch (Wiper): Inspection

WARNING: This page is about a different car, the 2006 Subaru Baja. 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 Connector Terminal
Courtesy of SUBARU OF AMERICA, INC.

COMBINATION SWITCH (WIPER) REFERENCE

	Switch position	Terminal No.	Standard
FRONT	LO	7 and 17	Less than 1 Ω
	HI	8 and 17	Less than 1 Ω
	Washer ON	2 and 11	Less than 1 Ω

If continuity is not as specified, replace the switch.

Intermittent operation inspection (inspection by wiper switch only)

Connect wiper switch terminal 17 to the battery positive terminal, and terminals 2 and 16 to the battery negative terminal.
Turn the wiper switch to INT.
Connect the battery positive terminal to wiper switch terminal 16 for 5 seconds.
Connect the battery negative terminal to wiper switch terminal 16, and measure the voltage between terminals 7 and 2 when the intermittent operation is performed.
Perform the above procedures 1 to 4 when the intermittent control switch is at the MIN and MAX positions.

Fig 2: Wiper Switch Timing Chart
Courtesy of SUBARU OF AMERICA, INC.

Standard for time when the INT is stopped:

At MIN: Approximately 2 seconds

At MAX: Approximately 17 seconds

If operation is not as specified, replace the switch.