Mitsubishi MOTORS Laser 1991, Service Manual, Page: 17 / 320

Changeover knob
INSPECTION
Check relay operation, blower motor rotation, light illumina-
tion, etc. visually or aurally. The flow of current
but
can be checked by the operation of the parts.
For example, if a headlight does not come on and a faulty fuse
or poor grounding is suspected, replace the fuse new
one or ground the light to the body by a jumper wire to deter-
mine which part is responsible for the problem.
Use an appropriate instrument in an adequate range and read
the indication correctly. You must have sufficient knowledge
and experience to handle instruments correctly.
INSPECTION INSTRUMENTS
In inspection, make use of the following instruments.
A test light consists of a bulb and lead wires. It is used
to check voltages or shortcircuits.
A self-power test light consists of a bulb, battery and lead
wires connected in series. It is used to check continuity or
grounding.