ELECTRICAL SYSTEM AND TESTING
Troubleshooting
2008-2011 IQ Plus Electric Vehicle Maintenance and Service Supplement
Page 11-47
11
CDM TROUBLESHOOTING GUIDE
Use the following chart as a starting point for troubleshooting problems with communication between the
CDM and onboard computer. Contact your Club Car representative for more comprehensive information.
Figure 11-33 Flow Chart – CDM Troubleshooting Guide
CDM battery
is discharged
Replace CDM battery
Failed CDM unit
Replace CDM
Failed OBC
Replace OBC
Remove "+" battery
lead and discharge
the speed controller.
See the instructions in
the WARNING on
page 11-1.
After a short time,
replace the lead and
restart the OBC.
OBC program is
"locked-up"
Restart OBC by
driving vehicle or by
connecting charger
DC plug
OBC is in a
powerdown mode
More than 75
EUs or 75% of
energy removed
from batteries
Recharge Batteries
OBC Will Not Communicate
With The CDM
Failed Dash Light