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ELECTRICAL SYSTEM AND TESTING
Troubleshooting
Page 11-26
2008-2011 IQ System Electric Vehicle Maintenance and Service Supplement
11
1. Disconnect the batteries and discharge the controller.
See Disconnecting The Batteries on page 10-3.
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 crossmember between the spring mount and side stringer, just forward of
each rear wheel.
See WARNING “Lift only one end...” in General Warning, Section 10, Page 10-2.
3. Disconnect the 16-pin connector at the speed controller.
4. Set a multimeter to 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/white wire) of the
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.
7. Set a multimeter to 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 wire).
See previous CAUTION.
8. With the accelerator pedal fully up (not pressed), the multimeter should indicate between 5.67k ohms
10. If any other reading is observed, check the continuity of the wires in the wire harness.
Figure 11-14 Pins 1, 2, and 3 Test
2m
20
m
200
m
2k
200
200
200
200
20
2
200
m
500
20k
200k
2000
k
1000
OFF
WAVETEK
5XL
V
V
V
A
!
!
COM
200nA
MAX
1000 ---
750V
FUSED
SPEED CONTROLLER
20k OHM SETTING
(READING WITH
PEDAL UNDEPRESSED)