E-Z-GO 625619 2012, Technician'S Repair And Service Manual

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Page G-4
Repair and Service Manual
B
ELECTRICAL
Read all of Section B and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
3.Check for loose wires at all terminal connections.
4.Check the complete electrical system for correct cir-
cuitry.
5.Inspect for worn insulation or bare wires touching
the frame. Bare wires will cause a short circuit.
6.Check for continuity through the key switch. Set the
DVOM to the ohms (Q) scale. Remove key switch
plate from instrument panel. See BODY AND TRUCK-
BED section. Detach electrical plug from key switch.
Place positive (+) probe on terminal of green (GRN)
wire and negative (-) probe on terminal of blue (BLU)
wire. The reading on the meter should be "0" Q with
the switch key in the 'ON' position and a visual signal
(00) with the switch in the 'OFF' position. If the meter
does not register, replace the switch. Reconnect the
wires.
7.Turn the key switch to 'OFF'.
(a) Place one probe of the DVOM (set to ohms scale)
on the red wire at the solenoid. Place the other
probe on the key switch terminal with the blue wire.
(b) Press the accelerator and observe the DVOM. A
reading of less than 2 Q indicates a good limit
switch. A reading of greater than 2 Q indicates that
the switch terminals should be checked. A reading
of infinity, a visual signal (00), indicates that the
switch must be replaced. Connect the battery.
8.Check the starting solenoid operation. Turn the key
switch to the 'ON' position.
(a) Place the DVOM (set to appropriate DC volts scale)
negative (-) probe on terminal A of the solenoid.
Place positive (+) probe on terminal B. The DVOM
should indicate approximately 12 V.
(b) Press the accelerator pedal. The DVOM will indi-
cate "0" voltage if the solenoid contacts are closed.
(c) If "0" voltage is not indicated while the accelerator
pedal is pressed, replace the solenoid.
TESTING CHARGING CIRCUIT
Tool List Qty.
DVOM ......................................................................... 1
To prevent the possibility of injury resulting
from vehicle inadvertently starting, the drive
belt must be removed or both rear wheels
raised (see procedure in Section B).
The charging circuit consists of a starter/generator,
voltage regulator and battery (Ref Fig. 4 on page G-5).
The solenoid must be functional in order to start the
vehicle, but is not considered part of the charging circuit.
1. If the battery charge is inadequate (less than 11 VDC),
proceed as follows:
a) Check the battery voltage and inspect for loose or
corroded terminal posts and connections. Check
electrolyte level.
b) Check charging circuit component terminals for
proper, clean, tight connections.
c) Check for charging voltage as follows:
1) Raise the vehicle (see procedure in Section B)
so that both rear wheels are free to rotate.
2) With the engine off, measure the voltage at the
battery's terminals by placing the negative (-)
probe on the negative (-) post and the positive
(+)
probe on the positive
(+)
post of the battery.
Note the reading.
3) Attach the DC voltmeter across the regulator's
red and black leads.
4) Start the engine and accelerate to governed
speed.
5) The meter should read higher than before start-
ing the engine. In a reasonable amount of time,
the reading should settle between 14 and 15
volts, indicating the regulator is functioning
properly.
6) If no increase over battery voltage is observed,
there is a malfunction in the charging circuit.
7) If the reading is above 15 volts, check to assure
the wiring harness and generator field winding
(green lead) is not grounded. If it is not, replace
the regulator.
8) If the reading is below 14 volts, disconnect the
regulator's green field wire from the system
harness. Temporarily connect the green field
wire to ground. If the voltage rises above its
prior reading, replace the regulator.
9) If the above procedures do not correct the
problem, check for faults in the vehicles wiring
harness and/or generator.