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(277)
GROUP
15
PART 15-1
PAGE
GENERAl liGHTING SYSTEM,
PART 15-4
INSTRUMENTS
PAGE
. 15-12
HORNS, AND INSTRUMENTS SERVICE ..
15-1
PART 15-5
PART 15-2
SPECIFIICA TIONS . . . . . . . . . . . . . . .
15-18
liGHTING SYSTEM AND HORNS .....
15-5
PART 15-3
SWITCHES, CIRCUIT BREAKERS
AND FUSES . . . . . . . . . . .
. .....
15-10
PART
15-1
GENERAL LIGHTING SYSTEM, HORNS,
AND INSTRUMENTS SERVICE
Section
Page
Section
Page
1 Diagnosis and Testing
' .......... 15-1
2 Common Adjustments and Repairs .......... 15-4
D
DIAGNOSIS AND TESTING
LIGHT TROUBLE DIAGNOSIS GUIDE
ALL HEADLIGHTS DO
NOT LIGHT
INDIVIDUAL LIGHTS DO
NOT LIGHT
LIGHTS BURN OUT
REPEATEDLY
1.
Loose battery cable.
2. Loose quick disconnect or brok·
en wire from the battery to the head··
light switch.
3.
Defective headlight switch.
4. Disconnected
or
broken win:
from the headlight switch to the
beam selector switch.
1.
Burned out bulb.
2.
I .oosc or broken wires to the
j
1. Loose
or corroded electrical
!
connections.
I
2.
Excessive vibration.
l
INSTRUMENT TROUBLE DIAGNOSIS GUIDE
FUEL GAUGE ERRATIC
OR INOPERATIVE
1.
Loose or broken wire from the
constant voltage regulator to the fuel
g<mgc.
2. Defective fuel gauge (Part 15··
-+).
3. Loose, broken, or shorted wire
from fuel gauge to the fuel tank
-;ending unit.
5. Loose or broken wire to the
bulbs.
6.
Defective beam selector switch.
7. All headlight bulbs burned out.
This may be caused by a defective or
improperly adjusted alternator vo1t-
age regulator (Group 13).
bulb.
3. Poor ground.
3. Improperly adjusted or defec-
tive
alternator
voltage
regulator
(Group
13).
4.
Defective constant voltage reg-
ulator (Part 15-4).
5.
Defective
fuel
tank
sending
unit.
6.
Defective radio suppression
choke.
7. Poor
ground
between fuel tank
and body.
CONTINUED ON NEXT PAGE
I
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Troubleshooting
