Electrical Troubleshooting
Table 47: Electrical Troubleshooting
Problem
Loss of electrical power
Instrument display does not activate when
ignition is on
Starter does not engage when key switch
turned to start position
Work/road lights malfunction
Miscellaneous Troubleshooting
Table 48: Miscellaneous Troubleshooting
Problem
Non-functional cab heater
Printed in U.S.A.
Possible Cause
Battery terminals or cables loose or
corroded
Battery malfunction
Blown main fuse
Blown main fuse
Battery terminals or cables loose or
corroded
Ignition switch malfunction
In very cold weather, display screen slow
to display
Loose/corroded starter electrical
connections
Battery terminals or cables loose or
corroded
Starter relay malfunction
Battery malfunction
Starter solenoid malfunction
Starter or pinion malfunctioning
Error code "0". Arm rest/safety bar in
raised position; cab door not closed (if
equipped)' operator's seat not occupied
Single light not working; light bulb burned
out, faulty wiring
No lights; blown fuse
Light switch malfunction
Poor electrical ground
Possible Cause
Thermostat oriented in housing with
support bales/arms blocking feed hole to
heater hose. (SOME heat delivered
through heater)
139
Troubleshooting
Corrective Action
Clean battery terminals/cable
connections and tighten
Test battery. Recharge/replace as
necessary
Replace main fuse
Replace main fuse
Clean battery terminals/cable
connections and tighten
Replace switch
Wait a few minutes for display to activate
Check/tighten/clean connections
Clean battery terminals/cable
connections and tighten
Contact dealer
Test battery. Recharge/replace as
necessary
Contact dealer
Repair/replace as needed
Lower arm rests/safety bars to operating
position. Engine will not start with either
arm rest/safety bar raised, or the cab
door open (if equipped). Occupy
operator's seat
Check and replace light bulb as needed,
check wiring connections
Check circuit/replace fuse
Replace light switch
Check ground wire connections
Corrective Action
Replace thermostat; align bales/arms
properly (parallel to engine crankshaft) in
housing.
918468/EP0313