Club Car 1995 Golf Car, Maintenance Service Supplement

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COMMUNICATION DISPLAY MODULE TROUBLESHOOTING GUIDE
Use this chart as a starting point for troubleshooting problems with communications between the CDM and
on-board computer. Contact your Club Car representative for more comprehensive information.
17-24
OBC will not communicate
with the CDM
Dead CDM Battery
Replace CDM Battery
Bad CDM Unit
Replace CDM
OBC program is
“locked up”
Remove “+” battery
lead and discharge
the speed controller.
After a short time,
replace the lead and
restart OBC
OBC is bad
Replace OBC
OBC is in a
powerdown mode
Restart OBC by
driving car or by
connecting charger
DC plug
CDM LED Dirty or
has moisture
condensation on it
*
Clean LED Lens
*
On some 1995 PowerDrive System 48 vehicles manufactured between weeks 9526 and 9546, the infra-red light
projection lens (LED) in the on-board computer may be partially covered by a clear sealant used when assem-
bling the computer. If this occurs, the communication display module (CDM) may not receive information from
the computer. This condition may be corrected using a razor knife or a small cutting tool to remove any excess
sealant material from the area around the projection lens. Use caution not to damage the lens when removing
the sealant. See Club Car Service Bulletin No. 95-12 for complete information.