SECTION 55 - ELECTRICAL SYSTEM
55-33
TROUBLESHOOTING
ELECTRONIC INSTRUMENT CLUSTER (EIC)
PROBLEM
POSSIBLE CAUSE CORRECTION
EIC board will not light up when
operator sits in seat
Service/run switch in service
position
Faulty seat switch
No battery voltage to seat switch
Blown 5-amp fuse (electronic
battery) in engine panel
No battery voltage from seat
switch to EIC board
Battery voltage from seat switch
to EIC board
Push switch to run position
Replace switch
Blown 5-amp fuse electronic battery
in engine panel, replace fuse
Open in power wire from 5-amp fuse
to seat switch, repair open in wire
No battery voltage to 5-amp fuse
from supply, check and/or replace
battery
Replace fuse
Open in power wire from seat switch
to EIC board, repair open in wire
Poor or no connection at EIC board,
repair connection
If battery voltage from seat to board
is OK, replace EIC board
EIC board backlighting is dim Brightness variations due to
production differences between
models and/or EIC board
changes
Backlights dim when the loader
worklights are activated
None -- overlay decal material
variations cause differences in
brightness
None -- EIC board circuitry
automatically dims the backlighting
when the work lights are on, to
reduce board glare at night
EIC board seat belt light will not go off
with seat belt buckled
Seat belt not buckled
Faulty seat belt buckle switch
No battery voltage from seat
switch to seat belt switch
No battery voltage from seat belt
switch to EIC board
Battery voltage from seat belt
switch to EIC board
Buckle seat belt
Replace seat belt assembly
Open in wire from seat switch to seat
belt switch, repair open
Open in wire from seat belt switch to
EIC board, repair open
Poor or no connection at EIC board,
repair connection
If voltage OK, replace EIC board
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