Horn System: Inspection

WARNING: This page is about a different car, the 2005 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

Measure the horn relay resistance between terminals (indicated in table below) when connecting terminal No. 4 to battery positive terminal and terminal No. 3 to battery negative terminal.

Fig 1: Measuring Horn Relay Resistance Between Terminals

Courtesy of SUBARU OF AMERICA, INC.

TERMINAL AND STANDARD SPECIFICATIONS

Current	Terminal No.	Standard
Flow	1 and 2	Less than 1ohm
No Flow	1 and 2	More than 1Mohm