18
Troubleshooting Guide
TROUBLESHOOTING AND ELECTRICAL
SYSTEM: PEDAL-START GAS VEHICLE
TROUBLESHOOTING GUIDE
SYMPTOM
POSSIBLE CAUSES
CORRECTIVE ACTION
Incorrect plug
Section 22 — Engine (Subaru EX40)
Spark plug wire is damaged
Section 22 — Engine (Subaru EX40)
Unsuitable fuel, or incorrect (rich) fuel mixture
Section 23 — Fuel System: Gasoline Vehicles
Ignition coil failed
Test Procedures 15 –
and 16
Dirt entering combustion chamber
Check intake system for leaks.
Section 23 — Fuel System: Gasoline Vehicles
Spark plug fouls repeatedly.
Rings are heavily worn, low cylinder pressure
Section 22 — Engine (Subaru EX40)
Neutral lockout switch is in the MAINTENANCE
position
Place switch in the OPERATE position.
Fuse is blown
Test Procedure 2 –
Battery is dead
Test Procedure 1 –
Starter control circuit is not operating
Test Procedure 5 –
Starter/generator failed
Test Procedure 12 –
Starter solenoid failed
Test Procedure 8 –
Accelerator pedal limit switch failed
Test Procedure 7 –
Switch – Pedal-Start Vehicles Only
Key switch failed
Test Procedure 5 –
Neutral lockout limit switch failed
Test Procedure 10 –
Switch – Pedal-Start Vehicles Only
Loose or broken wire in starter/generator
circuit
Section 20 — Electrical Components:
Pedal-Start Gas Vehicle Starter/Generator on
Starter fails to operate.
Cylinder and/or crankcase flooded with fuel
Section 23 — Fuel System: Gasoline Vehicles
Loose or broken wire in the starter/ generator
circuit
Test Procedure 11 –
Generator field coil is shorted
Test Procedure 11 –
Brushes are worn or commutator is dirty
Section 20 — Electrical Components:
Pedal-Start Gas Vehicle Starter/Generator on
Starter/generator belt is loose or slipping
Belt Tension Adjustment for EFI Engines on
Voltage regulator failed
Test Procedure 13 –
Starter/generator does not charge battery.
Battery failed
Test Procedure 1 –
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2017 Carryall 500 and 700 Maintenance and Service Manual
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