Club Car 2009-20011 Electric Precedent Maintenance And Service Manual page 170

12
Test Procedures
TEST PROCEDURE 10 – Pins 1, 2, and 3
See General Warnings on page 1-1.
Pins 1, 2, and 3 in the 16-pin connector provide a connection point from the MCOR potentiometer to the speed
controller.
1. Disconnect the batteries and discharge the controller. See Disconnecting the Batteries – Electric Vehicles
on page 1-3.
2. Place chocks at the front wheels and lift the rear of the vehicle with a chain hoist or floor jack. Position jack
stands under the frame rails just forward of each spring mount. See WARNING "Lift only one end..." in
General Warnings on page 1-1.
3. Disconnect the 16-pin connector at the speed controller.
4. Using a multimeter set for 20k ohms, insert the red (+) probe of the multimeter into pin 2 (yellow wire) of the
16-pin connector. See following CAUTION. Insert the black (–) probe into pin 3 (purple wire) of the 16-pin
connector (Figure 12-14, Page 12-24).
CAUTION
• Do not fully insert probes into the 16-pin plug. Doing so can result in a poor connection.
5. With the accelerator pedal fully up (not pressed), the multimeter should read approximately 1k ohms.
6. Slowly press the accelerator pedal while monitoring the multimeter. The resistance should rise as the pedal is
pressed. When the pedal is all the way to the floor, the multimeter should indicate between 5.67k ohms and
7.43k ohms.
20k Ohm Setting (reading with pedal not pressed)
685
7. Using a multimeter set for 20k ohms, insert the red (+) probe of the multimeter into pin 2 (yellow wire) at the
16-pin connector. Connect the black (–) probe into pin 1 (white/black wire). See previous CAUTION.
8. With the accelerator pedal fully up (not pressed), the multimeter should indicate between 5.67k ohms and
7.43k ohms.
9. Slowly press the accelerator pedal while monitoring the multimeter. The resistance should drop as the pedal is
pressed. When the pedal is all the way to the floor, the multimeter should indicate approximately 1k ohms.
10. If any other reading is observed, check the continuity of the wires in the wire harness.
Page 12-24 2009-2011 Electric Precedent Maintenance and Service Manual
Figure 12-14 Pins 1, 2, and 3 Test
IQ SYSTEM TROUBLESHOOTING – MCOR
WAVETEK
V
V
5XL
V
OFF
1000 500
200
200
20 200
2 2m
200 20
m
m
200
2000
m
k
200k
20k 200
A
2k
! !
COM 200nA
MAX
1000 ---
FUSED
750V