Check Horn Switch

CAUTION: Before handling the airbag system components, refer to "CAUTION" of "General Description" in "AIRBAG SYSTEM". <Ref. to CAUTION , General Description.>

Turn the ignition switch to OFF.
Disconnect the ground cable from battery and wait for at least 60 seconds before starting work. <Ref. to BATTERY , NOTE, Note.>
NOTE: For model with battery sensor, disconnect the ground terminal from battery sensor.
Remove the driver's airbag module. <Ref. to REMOVAL , Driver's Airbag Module.>
Check that the horn switch connector is connected properly.

Measure the resistance between connectors.

Preparation tool: Circuit tester

Fig 1: Measuring Resistance Between Horn Switch Connectors

Courtesy of SUBARU OF AMERICA, INC.

Terminal No.	Inspection conditions	Standard
Horn switch terminal - ground terminal	Always	Less than 1 Ω

Replace the driver's airbag module if the inspection result is not within the standard value.