5 - 142 ELECTRICAL SYSTEM - CABLE CONTINUITY TEST
This task covers:
Tool Kit, General Mechanic's, Automotive (GMTK)
Multi-Meter (Shop Set Contact Maintenance Truck HMMWV)
Vehicle switched off and battery shutoff switch in the off position
Multi-Meter set to ohms
Disconnect the cable from the component (switch, solenoid, junction box, etc) at the
working end of the circuit and at the power end.
Check continuity from the power end of the cable to the working end of the cable.
If continuity is not measured go to step 4.
If continuity is measured, the fault has not been isolated. Continue with the fault
isolation tests or notify supervisor.
Disconnect the first connector from the working end of the cable in line to the power
If continuity is not measured go to step 6.
If continuity is measured, a fault is in the section of the cable most recently
disconnected. Repair or replace the cable and perform the continuity test again.
Repeat steps 3 and 4 until all sections of the suspect cable are tested.
Replace faulty cable as required.
Switch the battery shutoff switch to the on position.