22
Communication Display Module (CDM)
ELECTRICAL SYSTEM AND TESTING:
ELECTRIC VEHICLES
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.
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
Batteries discharged
Recharge Batteries
OBC Will Not Communicate
With The CDM
Failed Dash Light
Replace Dash Light
Failed Wiring
Check wires and connections
Figure 22-24
Flow Chart – CDM Troubleshooting Guide
Page 22-38
2007-2009 Turf 252, Carryall 252 and XRT 900 Maintenance and Service Manual