RESISTANCE TEST -726280535

TM 9-2320-364-20-1

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, injury or death to personnel may occur.

Allow engine to cool before performing

troubleshooting maintenance. If necessary

use insulated pads and gloves. Hot engine

components will burn and cause personnel

injury.

Use jumperwire only between terminals indicated.

Failure to comply may result in damage to DDEC

components or wiring.

RESISTANCE TEST

(1) Place jumperwire between terminals C

and A at vernier control harness

connector MC38.

(2) Are there 5 ohms are less present

between wires 916 and 952 at vehicle

harness connector MC18, terminals

A3 and C3?

(a) If more than 5 ohms are present,

remove jumperwire and repair

wires 916 and/or 952 (see

schematic Fig 2-1) or notify DS

Maintenance.

(b) If 5 ohms or less are present,

remove jumperwire and go to

Step 7 of this Fault.

RESISTANCE TEST

(1) Are there more than 10,000 ohms or

an open circuit measured between

wires 510 and 952 at vehicle harness

connector MC18, terminals D1

and C3?

(a) If less than 10,000 ohms are

present, repair wires 510 and/or

952 (see schematic Fig 2-1) or

notify DS Maintenance.

(b) If more than 10,000 ohms are

present, perform Step (2) below.

(2) Are there more than 10,000 ohms or

an open circuit measured between

wires 510 at vehicle harness

connector MC18, terminals D1

and a known good ground.

(a) If less than 10,000 ohms are

present, repair wire 510 (see

schematic Fig 2-1) or notify DS

Maintenance

(b) If more than 10,000 ohms are

present, wire 510 is OK, go

to Step 8 of this Fault.

2-465