20-6. ARCTIC HEATER WIRING HARNESS TEST/REPAIR/REPLACEMENT
This Task Covers:
Tools and Special Tools
Negative battery cable disconnected (Para 8-44)
Tool Kit, General Mechanic's: Automotive
(Item 18, Appendix F)
Multimeter, Digital (Item 9, Appendix f)
Electrical tape (Item 39, Appendix C)
Tags (Item 38, Appendix C)
Tie wraps (Item 40, Appendix C)
Failure of an electrical device to function is more likely due to a faulty switch or faulty device rather
than to a broken wire. Do not assume that a broken wire exists until related electrical device and
actuator have been checked.
Inspect wires for poor connections, cuts, or other defects.
Check wire continuity to determine if hidden breaks exist.
Connect multimeter leads to each end of wire.
An infinite resistance reading indicates a broken wire or a defective fuse. Replace fuse (Para 20-4), and
again check wire continuity.