RESISTANCE TEST -726280295

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.

DDEC ECM connector terminals are easily damaged. Use care when connecting and disconnecting

connectors.

RESISTANCE TEST

(1) Loosen screw and disconnect vehicle

harness connector MC18 from

DDEC ECM.

(2) Read resistance between wires 417

and 916 at vehicle harness connector

MC18, terminals D2 and A3.

(a) If 10,000 ohms or less are

present, repair wires 417 and/or

916 (see schematic Fig 2-1) or

notify DS Maintenance.

(b) If more than 10,000 ohms are

present, go to Step 7 of this Fault.