TM 5-2420-230-24-1
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical
circuits, a direct short may result. Damage to equipment and injury or death to personnel may occur.
voltage at connectors. Failure to comply may result in damage to equipment.
(1)
Wire voltage drop test.
(a)
Disconnect connector from the component (e.g., light, relay, motor, etc.) at the working end of the circuit.
(b)
Check connector terminal(s) for damage. Repair or replace connector as necessary.
(c)
Set up vehicle conditions that will create voltage at working end of wire.
NOTE
IHMEE is equipped with 24-Vdc circuits. The troubleshooting fault that referenced these general wire
tests will provide voltage information for testing wires.
(d)
Check for required voltage at working end of wire.
If the required voltage is not measured at the working end of the wire, go to Step (e).
1
If the required voltage is measured at the working end of the wire, the fault has not been isolated.
2
Continue with fault isolation tests or notify supervisor.
(e)
Disconnect first connector in line from working end of wire to power source.
(f)
Check for required voltage at working end of wire.
If the required voltage is not measured at the working end of the wire, go to Step (g).
1
If the required voltage is measured at the working end of the wire, a fault is in the section of wire most
2
recently disconnected. Repair wire and perform voltage test again.
(g)
Repeat Steps (d) and (e) until all sections of suspect wire are tested.
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