Check Vehicle Signals With Line Diag Mode

Turn the ignition switch to ACC.
Press the button (b) twice with the button (a) pressed.

Courtesy of SUBARU OF AMERICA, INC.

NOTE: Pressing the button (a) for three seconds or more or turning the ignition switch from the OFF to ACC position can exit the Line Diag mode.
{Line Diag} screen is displayed.

Check the signal status with the {Vehicle Signal} in the {Line Diag} screen.

Courtesy of SUBARU OF AMERICA, INC.

Item	Contents	Inspection
ILL+	Illumination signal	Turn the lighting switch to ON, and check that the indication turns ON.
Speed	Speed pulse signal	Input the vehicle speed and check that the vehicle speed is displayed.
PKB	Parking brake signal	Pull the parking brake lever, and check that the indication turns ON.
REV	Reverse signal	Place the select lever in reverse and check that the indication turns ON.
IG	IGN signal	Confirm that the indication is ON.
Batt Volt	Battery voltage	Check that the battery voltage is displayed.
Bright	Bright signal	Turn the bright switch to ON, and check that the indication turns ON.