Electrical Troubleshooting
Troubleshooting
Page 2
Test Equipment Required:
• Digital multimeter (DMM) with diode test function, FLUKE 79 model shown.
• Test harness, Taylor-Dunn #75-089-00
Important Notes and Instructions
• This troubleshooting guide assumes a familiarity with the use of a digital multimeter
including, voltage tests, continuity tests, and diode testing. If you are not familiar with
these types of tests then refer testing to a qualified technician.
• These tests are not intended to locate a problem on an incorrectly wired vehicle.
• Make sure the batteries are in good condition and fully charged before performing any
tests.
• If the vehicle exhibits intermittent problems, it must be in the failed mode for troubleshooting.
If it is running normally when the testing is done then the problem will not be identified.
• Some tests refer to a High/Low switch. The High/Low switch is optional and the vehicle
may not be equipped with this option. If the vehicle is without this option, there is a jumper
bypass installed in place of the switch in the dash.
• All voltage tests are done referenced to battery negative, unless otherwise specified.
•
At the start of each test sequence you will be instructed on how to place the control
switches. While testing, do not change the position of any switches unless instructed to
do so.
DURING ALL TESTS
• After any repairs are made, completely retest vehicle before lowering the drive wheels to
the ground.
Definitions:
• Battery volts = full voltage available at
the batteries at the time of test.
• High: Greater than +4.5 volts
• Low: Less than +1.8 volts
Terminology used:
• The “HOT” side of a switch is the terminal
that the power is connected to.
• The “COLD” side of a switch is the
terminal that the power is switched to.
• FS-1 = Micro-switch in the accelerator
module.
The rear drive wheels may rotate during some of the following tests.
Block the front wheels, raise the rear drive wheels off the ground, and
support the vehicle with jack stands. Failure to do so may cause the
vehicle to move and cause property damage and/or serious bodily injury.
Turn the Key switch OFF then disconnect both of the battery leads during
any maintenance or before disconnecting any electrical component or
wire. Failure to do so may cause severe bodily injury and/or property
damage.
Turn the Key switch OFF BEFORE disconnecting the batteries.
Disconnecting the batteries with the key switch ON may corrupt the
controller programming resulting in a fault code 1 (refer to fault table).
Summary of Contents for C0-425-36
Page 2: ......
Page 10: ...TAYLOR DUNN...
Page 18: ...TAYLOR DUNN...
Page 73: ...Maintenance Service and Repair Steering Page 19 Exploded View of Steering Gear...
Page 74: ...TAYLOR DUNN...
Page 98: ...TAYLOR DUNN...
Page 99: ...TABLE OF CONTENTS Throttle Linkage Adjustments 2 Throttle Linkage...
Page 132: ...TAYLOR DUNN...
Page 142: ...TAYLOR DUNN...
Page 154: ...TAYLOR DUNN...
Page 182: ...TAYLOR DUNN...
Page 183: ...TABLE OF CONTENTS Wire Diagrams Dash 2 Control Panel 3...
Page 186: ...TAYLOR DUNN...
Page 194: ...Illustrated Parts Illustrated Parts Page 8 Front Suspension...
Page 196: ...Illustrated Parts Illustrated Parts Page 10 Transmission Assembly 5 7 6 8 9...
Page 198: ...Illustrated Parts Illustrated Parts Page 12 Transmission Gear Case...
Page 200: ...Illustrated Parts Illustrated Parts Page 14 Transmission Differential Case Rear Axle...
Page 202: ...Illustrated Parts Illustrated Parts Page 16 Rear Brakes Brake Body Assembly...
Page 204: ...Illustrated Parts Illustrated Parts Page 18 Rear Suspension 12 FRONT 11 1 5 4 2 17 6 Frame 7 7...
Page 206: ...Illustrated Parts Illustrated Parts Page 20 Motor Master Cylinder 13...
Page 208: ...Illustrated Parts Illustrated Parts Page 22 Automatic Electric Brake...
Page 220: ...Illustrated Parts Illustrated Parts Page 34 Instrument Panel dash 2 Smart View Display...
Page 226: ...Illustrated Parts Illustrated Parts Page 40 Lighting System...
Page 228: ...Illustrated Parts Illustrated Parts Page 42 Seat Cushions and Deck...
Page 230: ...Illustrated Parts Illustrated Parts Page 44 Decals...
Page 237: ...APPENDIX A Special Tools...
Page 239: ...APPENDIX B Torque Values...
Page 242: ...TAYLOR DUNN...
Page 243: ...Appendix C...
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