TM 9-2320-289-20
2-10.
TROUBLESHOOTING ELECTRICAL MALFUNCTIONS.
WARNING
Both battery negative cables must be disconnected before removing any
electrical system components. (See paragraph 4-38) Failure to follow this
warning may result in seriuos injury or death to personnel.
CAUTION
Do not leave key in “RUN” position for more than 2 minutes for any
electrical system test. Failure to follow this caution may result in damage
to glow plugs.
a.
Introduction. As a general rule,
when troubleshooting malfunctions of electrical
systems, check for continuity through the component and any applicable switches and fuses. Use
the wiring diagrams in Appendix F and the following instructions to determine the routing of the
wiring. Replace any component, switch, or fuse that does not have continuity.
b. Abbreviations, Lead Descriptions, and Symbols.
(1) Abbreviations. The following abbreviations of wire colors are used throughout
Appendix F:
BLK . . . . . . . . . . . . . . . . . . . . . . . .
BLK/LT BLU . . . . . . . . . . . . . . . . . .
BLK/WHT . . . . . . . . . . . . . . . . . . . .
BLK/YEL . . . . . . . . . . . . . . . . . . . .
BLU . . . . . . . . . . . . . . . . . . . . . . .
BRN . . . . . . . . . . . . . . . . . . . . . . . .
BRN/RED . . . . . . . . . . . . . . . . . . . .
BRN/WHT . . . . . . . . . . . . . . . . . . . .
DK BLU . . . . . . . . . . . . . . . . . . . . .
DKGRN . . . . . . . . . . . . . . . . . . . . .
DK GRN/WHT . . . . . . . . . . . . . . . .
LT BLU . . . . . . . . . . . . . . . . . . . . .
LT BLU/RED . . . . . . . . . . . . . . . . .
LT GRN . . . . . . . . . . . . . . . . . . . . .
GRA . . . . . . . . . . . . . . . . . . . . . . .
GRN . . . . . . . . . . . . . . . . . . . . . .
ORN . . . . . . . . . . . . . . . . . . . . . . . .
ORN/BLK . . . . . . . . . . . . . . . . . . . .
PNK . . . . . . . . . . . . . . . . . . . . . . .
PNK/BLK . . . . . . . . . . . . . . . . . . . .
PPL . . . . . . . . . . . . . . . . . . . . . . . .
PPL/WHT . . . . . . . . . . . . . . . . . . .
RED/WHT . . . . . . . . . . . . . . . . . . .
TAN/WHT . . . . . . . . . . . . . . . . . . .
WET . . . . . . . . . . . . . . . . . . . . . . . .
WHT/BLK . . . . . . . . . . . . . . . . . . .
YEL . . . . . . . . . . . . . . . . . . . . . . . .
YEL/BLK . . . . . . . . . . . . . . . . . . . .
Black
Black with one light blue stripe
Black with one white stripe
Black with one yellow stripe
Blue
Brown
Brown with one red stripe
Brown with one white stripe
Dark blue
Dark green
Dark Greenwich one white stripe
Light blue
Light blue with one red stripe
Light green
Gray
Green
Orange
Orange with one black stripe
Pink
Pink with one black stripe
Purple
Purple with one white stripe
Red with one white stripe
Tan with one white stripe
White
White with one black stripe
Yellow
Yellow with one black stripe
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