ELECTRICAL SYSTEM AND TESTING
Troubleshooting
Page 11-30
2006 IQ Plus System Electric Vehicle Maintenance and Service Supplement
11
Test Procedure 10C – Pin 8
See General Warning, Section 10, Page 10-1.
Pin 8 in the 24-pin connector provides a connection point for the MCOR limit switch to the speed controller.
1. Disconnect the battery cables as instructed.
See WARNING “To avoid unintentionally starting...” in
General Warning, Section 10, Page 10-1.
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 10-1
3. Disconnect the 24-pin connector at the speed controller.
4. Set a multimeter to 200 volts DC, insert the red (+) probe of the multimeter into pin 8 (green wire) of the
24-pin connector.
See following CAUTION.
Using an alligator clip, connect the black (–) probe to the B–
terminal of the speed controller
CAUTION
• Do not fully insert probes into the 24-pin plug. Doing so can result in a poor connection.
5. Place the Tow/Run switch in the TOW position and connect the battery cables, positive (+) cable first.
Tighten battery terminals to 110 in-lb (12.4 N·m).
6. Place the Tow/Run switch in the RUN position, key switch in the ON position, and Forward/Reverse
switch in the FORWARD or NEUTRAL position.
7. The multimeter should indicate zero volts DC at this time.
8. While monitoring the multimeter, slowly press the accelerator pedal and hold the pedal at approximately
20% of full travel.
9. After a short delay, the onboard computer should power-up (come out of sleep mode).
10. The multimeter should indicate full battery voltage (approximately 48 volts) when the accelerator pedal
is pressed.
Figure 11-20 Test: Pin 8 (Green Wire)
Detail:
Front of 24-Pin Connector