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ELECTRICAL SYSTEM AND TESTING: ELECTRIC VEHICLE
Communication Display Module (CDM)
2007-2008 XRT 800, 810 and 850 Maintenance and Service Manual
Page 21-35
21
CDM TROUBLESHOOTING GUIDE
Use the following chart as a starting point for troubleshooting problems with communication between the
CDM and onboard computer. Contact your nearest distributor/dealer representative for more comprehensive
information.
Figure 21-14 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
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