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TROUBLESHOOTING & REPAIR
F-13
COMMANDER 500
ENGINE STARTING DIAGNOSTIC CHART
F-13
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Does the PULL COIL
read .3 ohms?
Is there FUEL?
Did 1 of the WARNING
lights come on?
Is the BATTERY
charged ENOUGH to
start the ENGINE?
Is the BATTERY
charged?
Are the BATTERY
CABLES properly
connected?
Did you hear the
FUEL SOLENOID
engage?
Did engine START?
Did engine
REMAIN running after
the 30 second
INBHIT timer?
Did the
FUEL SOLENOID
engage and REMAIN
engaged?
Did all 5 ENGINE
WARNING LIGHTS
come on?
Did all 5 ENGINE
WARNING LIGHTS
go OFF?
Is the SOLENOID
LINKAGE bound-up?
Does the HOLD COIL
read 21 ohms?
Starting
ENGINE
CORRECT
that problem.
CORRECT
that problem.
CORRECT
that problem.
Look at wires 224,
262, 405, 270, 5T,
402, 232, 236a, &
236. Also, 403,
232M or 265.
PERIPHERAL PCB or
BATTERY PCB MAY BE
BAD. ALSO, THE PULL
COIL PCB.
PERIPHERAL PCB
MAY BE BAD.
PERIPHERAL PCB
MAY BE BAD.
PERIPHERAL PCB
MAY BE BAD.
Look at wires 224,
262
Check the WARNING
LIGHTS.
Look at wires 243,
247, 248, 245,
232f, 232g, 232e,
232p, 252 & 253.
Upon placing the RUN/STOP switch in the “RUN” position, you should hear a
“click” near the engine. This is the FUEL SOLENOID engaging. It should stay
engaged. You should also see all 5 ENGINE WARNING LIGHTS come on for
about 5 seconds and then go off. Then, operate the START button. ENGINE
WARNING LIGHTS WILL COME BACK on then off again. All gauges should be
in the NORMAL operating ranges. About 30 seconds after starting the engine,
the “inihibit” circuit which prevents ENGINE SHUTDOWN will turn-off. Engine
should remain running.
Y
Y
Y
N
N
N
N
N
Y
Y
Y
Y
OK
N
Y
OK
N
OK
OK
N
N
CORRECT
that problem.
CORRECT
that problem.
MAY HAVE ENGINE
PROBLEMS.
MAY HAVE WEAK FUEL
SOLENOID OR BAD
PERIPHERAL PCB.
N
N
Y
N
N
Y