RESISTANCE TEST -726280433

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.

NOTE

Injector drive wires are numbered 611

through 618 and injector return wires

are numbered 619 and 624 on the DDEC

Injector Harness Wiring Schematic (Fig 2-4).

RESISTANCE TEST

(1) Check for short to ground, working

with injector that has its two wires

disconnected.

(2) Measure resistance between injector

drive wire and a known good ground.

(a) If there are less than 10,000 ohms

present, repair wires tested (see

schematic Fig 2-4) or notify DS

Maintenance.

(b) If there are more than 10,000

ohms present, perform Step (3)

below.

(3) Measure resistance between one of

the terminals of the injector

(injector with disconnected wires) and

a known good ground.

(a) If there are less than 10,000 ohms

present, repair wires tested (see

schematic Fig 2-4) or notify

DS Maintenance.

(b) If there are more than 10,000

ohms present, go to Step 8 of this

Fault.