INSTRUMENTATION
SERVICE MANUAL NUMBER 22
90-860074--1 FEBRUARY 2002 Page 4D-7
QSI Series Gauge Lighting Options
These gauges are equipped with optional illumination lighting. Light bulb socket can be
removed and contacts can be aligned to be used with ignition switch lighting circuit +12 V
or separate instrumentation lighting circuit LT.
Standard position on diesel products is for use with the separate Panel Lights/Audio Test
switch.
IMPORTANT: Light socket must be removed from gauge and turned when adjusting
lighting option to desired setting. Turning socket while still installed in gauge could
result in damage to gauge or socket.
NOTE: For different lighting effects, colored sleeves are available through the Quicksilver
Accessories and can be assembled to the bulb.
72969
a
b
72968
a
Separate Instrumentation Lighting
Circuit Position (Standard Position)
Ignition Switch Lighting Circuit
Position (Optional Position)
c-+12 V Power Supply from Ignition Switch
d-+12 V Power Supply from Panel Lights/Audio Test Switch
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