Wire continuity test. -726250114

TM 9-2320-364-34-1

2-8. TROUBLESHOOTING INSTRUCTIONS (CONT).

NOTE

PLS is equipped with 12 vdc and 24 vdc circuits. The troubleshooting fault that

referenced these general wire tests will provide voltage information for testing wires.

(d)

Check for the required voltage at the working end of the wire.

If the required voltage is not measured at the working end of the wire, go to Step (e).

If the required voltage is measured at the working end of the wire, the fault has not been isolated.

Continue with the fault isolation tests or notify supervisor.

(e)

Disconnect the first connector in line from the working end of the wire to the power source.

(f)

Check for the required voltage at the working end of the wire.

If the required voltage is not measured at the working end of the wire, go to Step (g).

If the required voltage is measured at the working end of the wire, a fault is in the section of wire

most recently disconnected. Repair the wire and perform the voltage test again.

(g)

Repeat Steps (d) and (e) until all sections of the suspect wire are tested.

(2)

Wire continuity test.

(a)

Disconnect wire from the component (light, relay, motor, etc.) at the working end of the circuit and

from the power end.

(b)

Setup truck conditions that will create the desired circuit.

(c)

Check continuity from power end of the wire to the working end of the wire.

If continuity is not measured go to Step (d).

If continuity is measured, the fault has not been isolated. Continue with the fault isolation tests or

notify supervisor.

(d)

Disconnect the first connector from the working end of the wire in line to the power source.

(e)

Check continuity.

If continuity is not measured, go to Step (f).

If continuity is measured, a fault is in the section of the wire most recently disconnected. Repair

the wire and perform the continuity test again.

(f)

Repeat Steps (d) and (e) until all sections of the suspect wire are tested.

(3)

Wire harness shorting wires test.

(a)

Disconnect wire harness connector with wire suspected of damage.

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