Using The Cdm To Retrieve Data From The Onboard Computer - Club Car 1998 Maintenance And Service Manual Supplement

ELECTRICAL SYSTEM AND TESTING
4 - Indicates the last charge cycle was normal.
8 - Indicates the charger ran for sixteen hours and shut itself off without completing the charge cycle. This
means there may be a problem in the charge circuit.
The CDM also has a low battery signal which indicates when CDM batteries are weak and need replacing. Weak bat-
teries in the CDM may cause CDM to register inaccurate information or no information.
COMMUNICATION
LOW
DISPLAY MODULE
BATTERY
DISPLAY FUNCTIONS:
PRESS AND HOLD
BUTTON TO SHOW
FUNCTION NUMBER.
RELEASE BUTTON TO
SHOW FUNCTION VALUE.
Func1 - Battery voltage.
Func2 - Energy units removed since last charge cycle.
Func3 - Total accumulated energy units removed.
Func4 - Last charge termination type (1 = Incomplete,
2 = DVDT, 4 = Normal, 8 = Max. timer).
R
POWER
Club Car
ON
OFF
PART #17075
Figure 11-14 CDM

USING THE CDM TO RETRIEVE DATA FROM THE ONBOARD COMPUTER

1. Turn the CDM ON.
2. Position CDM on seat bottom so it is aligned directly with the battery warning light. Ensure CDM infrared LED receiver
is pointed at battery warning light and there is a clear path between them. See following NOTE.
NOTE NOTE
• IF, BY POSITIONING CDM ON SEAT BOTTOM CDM IS UNABLE TO COLLECT DATA STREAM FROM OBC, HOLD CDM
APPROXIMATELY 6 IN. FROM BATTERY WARNING LIGHT.
3. Wait approximately 30 seconds for a value to appear in the display window.
4. If a value does not appear in the display window after 30 seconds, try adjusting the aim of the CDM and repeating
step 3 until a value appears. If there is still no reading, check for weak batteries in the CDM.
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.
LOW BATTERY
INDICATOR
DISPLAY
WINDOW
FUNCTION
BUTTON
COMMUNICATION
DISPLAY MODULE
1998/1999 PowerDrive Plus Vehicle Maintenance and Service Supplement Page 11-23
The Communication Display Module (CDM)
11