Impreza WRX STI F4-2.5L DOHC Turbo (2007)
Alarm Horn Relay: Testing and Inspection
SECURITY HORN RELAY
INSPECTION
Measure the security horn relay resistance between terminals (indicated in the table) when connecting terminal No. 4 to battery positive terminal and
terminal No. 1 to battery ground terminal.
If NG, replace the security horn relay.
