ELECTRICAL SYSTEM AND TESTING
Test Procedures
2005 Precedent IQ System Electric Golf Car Maintenance and Service Manual
Page 11-15
11
Batteries / Voltage Check without the IQDM Handset
1. With batteries connected and using a multimeter set to 200 volts DC, place red (+) probe on the positive
(+) post of battery no. 1 and the black (–) probe on the negative (–) post of battery no. 4
(Figure 11-7,
Page 11-15)
. The multimeter should indicate at least 48 volts with the batteries fully charged. If not,
check for loose battery connections or a battery installed in reverse polarity. Refer to Section 13 –
Batteries for further details on battery testing.
TEST PROCEDURE 2 – ONBOARD COMPUTER SOLENOID LOCKOUT CIRCUIT
See General Warnings, Section 1, Page 1-1.
The solenoid lockout circuit disables the vehicle when the battery charger is plugged into the vehicle. Use the
following procedure to test the solenoid lockout circuit:
1. With batteries connected, place the Tow/Run switch in the RUN position.
2. Using a multimeter set to 200 volts DC, place black (–) probe on battery no. 4 negative post and red (+)
probe (with insulation-piercing probe) on the light blue onboard computer wire (at a point between the
OBC and the six-pin connector). The reading should be approximately 48-50 volts (full battery voltage).
If the reading is not 48-50 volts, proceed to step 3. If the reading is 48-50 volts, proceed to Test Procedure
3 – Solenoid Activating Coil on page 11-16.
3. Place insulation-piercing probe on the light blue 18-gauge wire at a point between OBC six-pin connector
and main wire harness. If reading is 48-50 volts, check the wire terminal connectors inside six-pin con-
nector at OBC six-pin connector. Make sure pins are properly aligned inside housing. Make sure wire col-
ors match and are connected to the correct terminals.
4. If reading is zero volts, plug the charger DC cord into the vehicle charger receptacle. If the dash light illu-
minates for 10 seconds, the OBC is now powered-up. Unplug the DC cord; the reading at the OBC light
blue wire should be approximately 48-50 volts. If the vehicle now operates normally, the DC cord has
powered up the electrical system. The electrical system should also power-up when the accelerator
pedal is pressed. To check the accelerator pedal function, see Test Procedure 4 – MCOR Voltage on
page 11-17.
5. If the dash light illuminates for 10 seconds and the vehicle does not operate:
5.1. Using a multimeter set to 200 volts DC, place black (–) probe on battery number 4 and place red
(+) probe (with insulation-piercing probe) on light blue 18-gauge wire at OBC six-pin connector.
5.2. With Tow/Run switch in the RUN position, the voltage reading should be approximately 48 volts.
Figure 11-7 Battery Test
2m
20
m
200
m
2k
200
200
200
200
20
2
200
m
500
20k
200k
2000
k
1000
OFF
WAVETEK
5XL
V
V
V
A
!
!
COM
200nA
MAX
1000 ---
750V
FUSED
1
2
3
4
200 DCV SETTING
FRONT
OF VEHICLE
Содержание 2005 Precedent
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