Stop Light Switch

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

Measure the resistance between stop light switch terminals.

5 door model

Fig 1: Measuring Resistance Between Stop Light Switch Terminals 1 And 2 (5 Door Model)
Courtesy of SUBARU OF AMERICA, INC.
4 door model

Fig 2: Measuring Resistance Between Stop Light Switch Terminals 3 And 4 (4 Door Model)
Courtesy of SUBARU OF AMERICA, INC.

Switch position	Terminal No.	Specification
When brake pedal is depressed	5 door model: 1 and 2 4 door model: 3 and 4	Less than 1 Ω
When brake pedal is released	5 door model: 1 and 2 4 door model: 3 and 4	1 MΩ or more

Replace the stop light switch if the inspection result is not within the standard value.