11
Electrical System
TROUBLESHOOTING AND ELECTRICAL SYSTEM
ELECTRICAL SYSTEM
The electrical system on the gasoline vehicle is 12 volts DC with negative (–) ground to frame, and consists of the
following circuits that are easily identified:
• Starter Circuit
• Generator Circuit
• Engine Ignition Circuit
• Engine Kill Circuit
• Reverse Buzzer Circuit
• Low Oil Warning Light Circuit
• Neutral Lockout Circuit
• Fuel Gauge and Sending Unit Circuit
• Hour Meter Circuit
• Lighting Circuit
Recognizing and understanding the function of each of these circuits will help to quickly isolate the source of an
electrical problem. Use the appropriate test procedure to correct the electrical problem.
For a complete wiring diagram, see page 11-6.
TEST PROCEDURES
Index of Test Procedures
1 – Battery
2 – Fuse
3 – Ground Cables
4 – Key Switch (Starter Circuit)
5 – Key Switch For Key-Start Vehicles Only (Accessory Terminal)
6 – Accelerator Pedal Limit Switch
7 – Solenoid
8 – Neutral Lockout Limit Switch
9 – Starter/Generator (Starter Function)
10 – Wire Continuity
11 – Starter/Generator (Generator Function)
12 – Voltage Regulator
13 – Disconnected Kill Wire
14 – Ignition Spark
15 – RPM Limiter
16 – Ignition Coil
17 – Kill Limit Switch
18 – Key Switch (Engine Kill Circuit)
19 – Engine Kill Wire
20 – Reverse Buzzer Limit Switch
Page 11-16
2009 FE 350 Maintenance and Service Supplement
