ELECTRICAL SYSTEM TROUBLESHOOTING: IQ
PLUS ELECTRIC VEHICLES
Test Procedures
12
– Run/Tow switch for proper operation.
See Run/Tow Switch on page 12-18.
– Key switch and MCOR limit switch for proper operation.
See Key Switch and MCOR Limit Switch Circuit
– Ensure that the pedal group is adjusted correctly.
See Accelerator and Brake Pedal Group Section.
Pin 19
See General Warnings on page 1-1.
Pin 19 in the 24-pin connector provides a connection point for the reverse buzzer to the speed controller.
1.
Disconnect the batteries and discharge the controller.
See Disconnecting the Batteries – Electric Vehicles,
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 Warnings on page 1-1.
3.
Disconnect the 24-pin connector at the speed controller.
4.
Place a jumper wire with an alligator clip between the B– terminal of the speed controller (use alligator clip
for this connection) and pin 19 (orange/white wire) of the 24-pin connector
.
See
following CAUTION.
CAUTION
• Do not fully insert probes into the 24-pin plug. Doing so can result in a poor connection.
5.
Place the Run/Tow switch in the TOW position and connect the battery cables, positive (+) cable first.
Connecting the Batteries – Electric Vehicles, Section 1, Page 1-4.
6.
Place the Run/Tow switch in the RUN position.
7.
The reverse buzzer should sound when the Run/Tow switch is in the RUN position.
8.
If any other activity is observed, check the following items:
– Continuity of the wires in the wire harness
– Reverse buzzer for proper operation.
See Reverse Buzzer on page 12-42.
– Run/Tow switch for proper operation.
See Run/Tow Switch on page 12-18.
2017 Carryall 500 and 700 Maintenance and Service Manual
Page 12-37
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