TROUBLESHOOTING
Electrical Circuits
2000 FE290 Gasoline Vehicle Maintenance and Service Supplement Page 11-9
11
ENGINE KILL CIRCUIT
The ignition coil supplies electrical power for the spark plug; therefore, the proper way to stop the engine is to
run this electrical power to ground, bypassing the spark plug (Figure 11-6, Page 11-9).
The engine kill circuit consists of the key switch, a kill limit switch that is activated by the accelerator pedal, a
neutral lockout limit switch that is activated by a cam located on the back of the Forward/Reverse shifter, and
connecting wires. The engine can be stopped by releasing the accelerator pedal, turning the key switch to the
OFF position, or by shifting the Forward/Reverse handle to NEUTRAL. See Neutral Lockout Circuit, Page 11-
10.
REVERSE BUZZER CIRCUIT
The reverse buzzer is a safety warning device that sounds when the Forward/Reverse handle is in REVERSE. It
functions to remind the operator not to leave the vehicle in reverse and to warn anyone in the area that the vehicle is
in reverse.
The reverse buzzer circuit consists of a reverse buzzer, reverse buzzer limit switch, fuse, fuse block, and
connecting wires (Figure 11-7, Page 11-9).
The battery supplies power through the fuse block and is controlled by the reverse buzzer limit switch that is
activated by a cam located on the back of the Forward/Reverse shifter. When the Forward/Reverse handle is
placed in REVERSE, a cam depresses the reverse limit switch, closing the circuit. The reverse buzzer sounds.
Figure 11-6 Engine Kill Circuit
Figure 11-7 Reverse Buzzer Circuit
Figure 11-8 Low Oil Warning Circuit
WHI
TE /
BLAC
K
WHIT
E
BLACK
WH
IT
E
/BLA
CK
WHIT
E
1
2
BLA
CK
BLAC
K
WH
ITE
/ BL
ACK
BLA
CK
WHITE /BLA
CK
ENGINE
RPM LIMITER
FRAME
GROUND
FRAME
GROUND
KEY
SWITCH
FORWARD / REVERSE
ASSEMBLY
NEUTRAL
LOCKOUT
LIMIT
SWITCH
KILL LIMIT
SWITCH
+M
1
2
–M
RED
/ WHIT
E
FRAME
GROUND
REVERSE
BUZZER
BLA
CK
BLA
CK
1
2
RED
/ WHITE
FORWARD / REVERSE
ASSEMBLY
REVERSE BUZZER
LIMIT SWITCH
ORA
NGE
FUSE
BLOCK
(-M) KEY
SWITCH
FRAME
GROUND
YE
LLOW
YELLOW
ENGINE
OIL
SENDING
UNIT
OIL
LIGHT
KEY
SWITCH
YEL
LO
W
YEL
LOW
BRAIDED GROUND WIRE
+M
1
2
–M