ELECTRICAL SYSTEM - CABLE SHORTING TEST

TM 5-5420-279-23

5 - 143 ELECTRICAL SYSTEM - CABLE SHORTING TEST

This task covers:

a. Test

INITIAL SETUP:

Tools Required

Tool Kit, General Mechanic's, Automotive (GMTK)

Multimeter (Shop Set Contact Maintenance Truck HMMWV)

Material Required

None

Equipment Conditions

Vehicle switched off and battery shutoff switch in the off position

Multimeter set to ohms

Test

(1)

Disconnect the harness connector with the wire suspected of damage.

(2)

Set the multimeter to ohms.

(3)

Connect (+) positive multimeter lead to harness connector terminal of the suspected cable.

(4)

Connect (-) positive multimeter lead to each of the other terminals in the harness

connector.

a. If there is continuity, the suspected cable and the cable where continuity is measured

are shorting together; repair the cable.

If there is no continuity, all wires are OK.

(5)

Switch the battery shutoff switch to the on position.