Mitsubishi MOTORS Laser 1991, Service Manual, Page: 215 / 320

LIGHTING SYSTEM
Troubleshooting
Ignition switch
Lighting switch switch
Headlight relay
“ACC” or “ON” “HEAD”
ON
or “ON” “PASS” ON
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The headlight relay is switched ON when the
lighting switch is set to the “HEAD” position.
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The low beam of the headlights will illuminate
when, in this condition, the dimmer/passing
switch is set to the “LO” position.
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The headlight relay is switched ON when the
lighting switch is set to the “HEAD” position.
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The high beam of the headlights will illuminate
when, in this condition, the dimmer/passing
switch is set to the “HI” position.
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This indicator illuminates during use of the high
beam of the headlights, and when the passing
signal (high beam) is activated, thus indicating
that the headlights’ high beam is illuminated.
TROUBLESHOOTING HINTS
Headlights don’t come on.
1) But the tail lights do illuminate.
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Check the headlight relay.
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Check the multi-purpose fuse
2) The tail lights also don’t illuminate.
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Check the lighting switch.
2. The low beam at both sides doesn’t illuminate.
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Check the “LO” contacts of the dimmer
switch.
3. The upper beam at both sides doesn’t illumi-
nate.
1) The passing signal functions OK.
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Check the “HI” contacts of the dimmer
switch.
2) The passing signal doesn’t function.
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Check the dimmer switch.
4. One headlight doesn’t illuminate.
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Check the bulb.
5. Can’t switch from low to high beam or
versa.
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Check the dimmer switch
6. The high beam indicator light doesn’t illuminate.
1) The high beam of the headlights is normal.
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Check dedicated fuse No.
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Check the bulb.
NOTE
For information concerning the headlight relay, refer
to
and for the theft-alarm system, refer to