Switch Assembly

Using a circuit tester (set in "ohm"), check that there is continuity between terminals S and M, and between terminal S and ground.

Also check to be sure there is no continuity between terminals M and B.

Terminal/Specified resistance: 

S - M/Less than 1 Ω 

S - Ground/Less than 1 Ω 

M - B/More than 1 MΩ 

Fig 1: Checking Continuity Between Terminals S And M

Courtesy of SUBARU OF AMERICA, INC.