Electrical System Testing; Vehicle “Clicks”, But Starter Does Not Spin Engine - Columbia ParCar P4G Service Manual

Figure 4- Key Switch Contacts

Electrical System Testing

The electrical system used in Columbia ParCar gas vehi-
cles is designed to be simple and reliable. All circuits of
the electrical system can be tested with a digital volt/ohm
meter.
Voltmeter red positive lead to starter solenoid, small terminal
with orange wire. Voltmeter black negative lead to starter
solenoid, small terminal with dark blue wire. Key switch on,
select forward or reverse and depress accelerator.
Voltmeter red positive lead to starter solenoid, large terminal
with battery positive cable. Voltmeter black negative lead to
battery negative (B-) terminal. Key switch on, select forward
or reverse and depress accelerator.
Voltmeter red positive lead to starter solenoid, large terminal
opposite battery positive cable. Voltmeter black negative
lead to battery negative (B-) terminal. Key switch on, select
forward or reverse and depress accelerator.
Voltmeter red positive lead to starter/generator F-2 terminal.
Voltmeter black negative lead to battery negative (B-)
terminal. Key switch on, select forward or reverse and
depress accelerator.
Voltmeter red positive lead to starter/generator F-2 terminal.
Voltmeter black negative lead to starter/generator A-1 termi-
nal. Key switch on, select forward or reverse and depress
accelerator.
Voltmeter red positive lead to starter/generator F-1 terminal.
Voltmeter black negative lead to starter/generator A-1
terminal. Key switch on, select forward or reverse and
depress accelerator.
Voltmeter red positive lead to starter/generator A-2 terminal.
Voltmeter black negative lead to starter/generator A-1 termi-
nal. Key switch on, select forward or reverse and depress
accelerator.
Trouble Shooting Guide
Vehicle "Clicks", But Starter Does Not Spin Engine
Test
The testing process includes voltage tests designed to
dynamically test all components in place on the vehicle.
It will not be necessary to remove components from the
vehicle for testing.
Warning: Always, raise vehicle and safely sup-
port on jack stands before servicing electrical
system. If engine is to be operated, use care to
keep all clothing, hands, tools and other objects
away from moving parts.
Caution: Always, check that vehicle battery is
fully charged and tested before vehicle electrical
system is checked. See Gas Vehicle battery,
page 8-14 for details regarding battery testing
and charging.
Results
Good
If 10 DC volts or greater
is observed, continue to
next step.
If 10 DC volts or greater,
continue to next test.
If 10 DC volts or greater,
continue to next test.
If greater than 10 DC
volts, proceed to next
test.
If greater than 10 DC
volts, proceed to next
test.
If greater than 10 DC
volts, proceed to next
test.
If greater than 10 DC
volts, brushes or arma-
ture repair will be
required. See page 8-9
for details regarding
repair of
starter/generator.
8-3
Bad
If less than 10 DC volts, refer to
Vehicle will not click or spin
engine to start.
If less than 10 DC volts, charge
or test battery, check battery
cable connections for corrosion
or loose connections.
If less than 10 DC volts, replace
starting solenoid.
If less than 10 DC volts, check
cable from starting solenoid to F-
2 terminal for damage or loose
connections.
If less than 10 DC volts, check
cable from battery (B-) terminal
for corrosion or incorrect wiring
connections. See wire diagram,
Figure 1.
If less than 10 DC volts,
starter/generator field coil is dam-
aged or shorted. See page 8-9
for details regarding repair of
starter/generator.
If less than 10 DC volts, check
cable connecting F-1 terminal to
A-2 for damage or loose connec-
tions. Check also that battery
negative cable is correctly con-
nected to the starter/generator A-
1 terminal before proceeding.