Cdm Troubleshooting Guide - Club Car 2009-20011 Electric Precedent Maintenance And Service Manual

14

CDM Troubleshooting Guide

4.4. If reading is still not obtained, go to the CDM Troubleshooting Guide on page 14-40.
Once a value has been obtained in the display window, the CDM may be removed from its receiving position and
the data reviewed. The CDM will hold the values for F1, F2, F3, and F4 until the CDM is turned OFF or it receives
another line of data from the same or another onboard computer. Use the following procedure to review the data
stored in the CDM:
• The value currently displayed will be F1 (battery voltage).
• To view F2, press and hold the button on the CDM. When "Func 2" appears in the display window, release the
button. The value for F2 will then be displayed.
• To view F3, press and hold the button on the CDM until "Func 3" appears in the display window. Release the
button. The value for F3 will be displayed.
• 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.
NOTE: The values of all four functions can be recalled by pressing and releasing the CDM button.
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
OBC program is
"locked-up"
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.
Page 14-40 2009-2011 Electric Precedent Maintenance and Service Manual
OBC Will Not Communicate
With The CDM
Failed CDM unit
Replace CDM
OBC is in a
powerdown mode
Restart OBC by
driving vehicle or by
connecting charger
DC plug
Figure 14-22 Flow Chart – CDM Troubleshooting Guide
EXCEL SYSTEM TROUBLESHOOTING – MCOR
Failed OBC
Replace OBC
Failed Dash Light
Replace Dash Light
Batteries discharged
Recharge Batteries
Check wires and connections
Failed Wiring