ELECTRICAL SYSTEM AND TESTING
Troubleshooting
Page 11-34
2006 IQ Plus System Electric Vehicle Maintenance and Service Supplement
11
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. With a multimeter set for 200 volts DC, insert the red (+) probe of the multimeter into pin 1 (tan wire) of
the 24-pin connector.
See following CAUTION.
With 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. With the Tow/Run switch in the TOW position, the multimeter should indicate zero volts.
7. Place the Tow/Run switch in the RUN position and the key switch in the ON position.
8. With the key switch in the ON position, the multimeter should indicate full battery voltage (approximately
48 volts). With the key switch in the OFF position, the reading should be zero volts.
9. If any other reading is obtained, check the following items:
•
Continuity of the wires in the wire harness
•
Tow/Run switch for proper operation.
See Test Procedure 6 – Tow/Run Switch on page 11-21.
•
Key switch for proper operation.
See Test Procedure 9 – Key Switch and MCOR Limit Switch Cir-
Figure 11-23 Test: Pin 1 (Tan Wire)
Detail:
Front of 24-Pin Connector