ELECTRICAL SYSTEM AND TESTING
CDM Troubleshooting Guide
Page 11-24 1998/1999 PowerDrive Plus Maintenance and Service Supplement
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To view F4, press and hold the button on the CDM until “Func 4” appears in the display window. Release the
button. The value for F4 will be displayed
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 11-15 Flow Chart–CDM Troubleshooting Guide
Dead CDM battery
Replace CDM battery
Faulty CDM unit
Replace CDM
Faulty OBC
Defective Dash Light
Replace OBC
Remove "+" battery lead
and discharge the
speed controller. 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
Tow/Run switch in TOW
position
Recharge batteries
OBC Does Not Communicate With CDM
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