Club Car Precedent 2004 Maintenance And Service page 110

11
ELECTRICAL SYSTEM AND TESTING
Key Switch and MCOR Limit Switch Circuit Test without the IQDM Handset, Continued:
∆
WARNING
• The forward/reverse switch must be in the neutral position to avoid personal injury due to
contact with rotating wheels.
5.2. With Tow/Run switch in the RUN position, key switch in the ON position, and Forward/Reverse
rocker switch in the NEUTRAL position, the voltage reading should be zero volts. When the accel-
erator pedal is pressed, the voltage reading should be approximately 48 volts (full battery voltage).
5.3. If the voltage reading is 48 volts when the accelerator pedal is not pressed, replace the MCOR. See
MCOR Removal, Section 12, Page 12-7.
5.4. If the voltage reading is zero volts when the accelerator pedal is pressed, check the limit switch cir-
cuit using the following test procedures.
5.4.1. Using a multimeter set to 200 volts DC, place black (–) probe on battery no. 4 negative
5.4.2. If the reading is zero volts, check the continuity of the blue wire that goes from the key
5.4.3. If the reading is approximately 48 volts, proceed to the following step.
5.4.4. Using a multimeter set to 200 volts DC, place the black (–) probe on the battery no. 4 neg-
5.4.5. If the reading is zero volts, test the continuity of the MCOR limit switch and the green wire.
TEST PROCEDURE 9 – 16-PIN CONNECTOR
See General Warnings, Section 1, Page 1-1.
1. Disconnect the battery cables as instructed. See WARNING "To avoid unintentionally starting..." in
General Warnings, Section 1, Page 1-1.
2. Disconnect the 16-pin connector from the speed controller. Inspect terminal ends inside plug to ensure
they are in position and seated in plug housing. If any terminals look like they are not pushed all the way
into the connector, gently push the terminals until they are firmly seated in the 16-pin connector. After
each terminal has been pushed into the housing, gently pull on the wire to ensure it is locked into place.
3. Check wires in the plug to make sure none are broken at the terminal pin crimp. Repair or replace as
required.
4. Check the wire colors of each wire and make sure that the colors for each pin position match the wire col-
ors in the wiring diagram. See Wiring Diagram on page 11-11.
5. When connecting the 16-pin connector to the controller, push plug into controller receptacle with enough
force to lock plug into place. An audible click will be heard when plug is properly seated to the controller.
A procedure is provided for testing each of the wires in the 16-pin connector. Refer to the following chart for
the appropriate procedure for each pin in the 16-pin connector.
Page 11-26 2004 Precedent IQ System Golf Car Maintenance and Service Manual
post and the place red (+) probe (with insulation-piercing probe) on the blue wire where it
connects to the MCOR. With the key switch ON, the reading should be approximately 48
volts (full battery voltage).
switch to the MCOR.
ative post and place the red (+) probe (with insulation-piercing probe) on the green wire
where it connects to the MCOR. With the Tow/Run switch in the RUN position, the key
switch ON, the Forward/Reverse rocker switch in NEUTRAL and the accelerator pedal
pressed, the reading should be approximately 48 volts (full battery voltage).
If the limit switch does not pass the continuity test, replace the MCOR. See MCOR
Removal, Section 12, Page 12-7.
Test Procedures