Subaru XT 1988 Service Manual page 1331

WIRING DIAGRAM AND TROUBLESHOOTING
5) Buzzer does not Sound
Check if buzzer sounds when
Yes
.. I
tachometer registers in the red
zone.
Faulty circuit unit.
t
No
Faulty buzzer (inside combina-
tion meter).
6) Meter Display does not Illuminate When Ignition Switch is Turned ON
Illumination lamp burned out or control
&
display unit faulty.
7) Meter Display does not Dim When Illumination Control Switch is Turned ON
Control
&
display unit may be faulty.
8) Control & Display Unit does not Illuminate When Illumination Control Switch is Turned ON
Illumination lamp may be burned out.
59
6-3