18
Troubleshooting Guide
GASOLINE VEHICLE - TROUBLESHOOTING
AND ELECTRICAL SYSTEM
GASOLINE POWERTRAIN
_
TROUBLESHOOTING GUIDE
SYMPTOM
POSSIBLE CAUSES
CORRECTIVE ACTION
Engine starts to run rough and continuously
gets worse
The engine temperature is too high. The ECU
is derating the engine.
The louver arm is closed.
If a engine oil dilution prevention kit has
been installed, open the engine fan louver.
See Louver Arm, Low Oil Warning Light,
and Malfunction Indicator Light for more
information.
Maintenance/Operate switch is in the
MAINTENANCE position
Set the Maintenance/Operate switch to
OPERATE
Fuse is blown
See the Fuses Test Procedure
Battery is dead
See the Battery Test Procedure
Starter control circuit is not operating
Pedal-Start:
See the Key Switch (Start Circuit)
Test Procedure
Key-Start:
See the Key Switch Test
Procedures
Starter/generator failed
See the Starter/Generator (Starter Function)
Test Procedure
Starter solenoid failed
See the Solenoid Test Procedure
Accelerator pedal limit switch failed
See the Accelerator Pedal Limit Switch
(Pedal-Start) Test Procedure
Key switch failed
Pedal-Start:
See the Key Switch (Start Circuit)
Test Procedure
Key-Start:
See the Key Switch Test
Procedures
Neutral lockout limit switch failed
See the Neutral Lockout Limit Switch
(Pedal-Start) Test Procedure
Loose or broken wire in starter/generator
circuit
See Starter/Generator in the Electrical
Components Section
Starter fails to operate.
Cylinder and/or crankcase flooded with fuel
See the Fuel System Section
Loose or broken wire in the starter/ generator
circuit
See the Starter/Generator (Generator
Function) Test Procedure
Generator field coil is shorted
See the Starter/Generator (Generator
Function) Test Procedure
Brushes are worn or commutator is dirty
See Starter/Generator in the Electrical
Components Section
Starter/generator belt is loose or slipping
See Belt Tension Adjustment For EFI Engines
in the Electrical Components Section
Voltage regulator failed
See the Voltage Regulator Test Procedure
Starter/generator does not charge battery.
Battery failed
See the Battery Test Procedure
TABLE CONTINUED ON NEXT PAGE
Page 18-4
2021 Carryall 300 Maintenance and Service Manual
Summary of Contents for Carryall 300 2021
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Page 567: ...GASOLINE KEY START MAIN HARNESS Wiring Diagrams Gasoline Key Start Main Harness 26...
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Page 569: ...GASOLINE PEDAL START MAIN HARNESS Wiring Diagrams Gasoline Pedal Start Main Harness 26...
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Page 571: ...GASOLINE INSTRUMENT PANEL HARNESS Wiring Diagrams Gasoline Instrument Panel Harness 26...
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Page 573: ...GASOLINE FNR HARNESS Wiring Diagrams Gasoline FNR Harness 26...
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Page 575: ...ELECTRIC MAIN HARNESS Wiring Diagrams Electric Main Harness 26...
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Page 577: ...ELECTRIC INSTRUMENT PANEL HARNESS Wiring Diagrams Electric Instrument Panel Harness 26...
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Page 579: ...ELECTRIC ACCESSORIES HARNESS Wiring Diagrams Electric Accessories Harness 26...
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