Club Car 1998 DS, Maintenance And Service Manual Supplement

Page: 18 / 132

ELECTRICAL SYSTEM AND TESTING Electrical Circuits
Page 11-6 1998/1999 PowerDrive Plus Maintenance and Service Supplement
11
Onboard Computer Circuit
The onboard computer (OBC) circuit performs the following functions:
1. Provides power to the solenoids, Forward/Reverse switch, controller capacitors and reverse buzzer.
2. Powers down the electrical system during long term storage to reduce battery discharge.
3. Activates regenerative braking when the batteries can accept a regenerative charge.
4. Turns the charger ON and OFF during the charge cycle.
5. Locks out the motor speed controller to prevent the vehicle from moving during the charge cycle.
6. Illuminates the dash warning light if there is a problem with the batteries.
7. Sends a signal from the dash light to the optional Communication Display Module.
Figure 11-4 Onboard Computer Circuit
1
2
3
4
6
5
MAIN
SOLENOID
B+
B-
BLACK
BLACK
CONTROLLER
BLUE
BLUE
BLACK
DYNAMIC
BRAKING
SOLENOID
RESISTOR
ORANGE/WHITE
O
R
A
N
G
E
/W
H
IT
E
BLU
E
BLU
E
FORWARD /
REVERSE
SWITCH
F
R
1
2
3
RED/WHITE
RED/W
HITE
REVERSE
BUZZER
RED
1 2 3 4 5 6 7
9 10 11
16
12 13 14 15
8
(PIN 1) RED WIRE
(PIN 2) ORN/WHT WIRE
ORANGE/WHITE
ORANGE/WHITE
RED
RED
RED
ONBOARD
COMPUTER
SONIC
WELD
SIX-PIN
CONNECTOR
(PIN 6) YELLOW WIRE
(PIN 13) GREEN WIRE
YELLOW
YELLOW
GREEN