VISUAL INSPECTION -726280569

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.

VISUAL INSPECTION

(1) Disconnect all connectors at

DDEC ECM (Para 7-56).

(2) Check all terminals at harness

connectors (ECM and harness side)

for damage; bent, corroded and

unseated pins or terminals.

(a) If harness connector(s) is

damaged, repair connector(s)

(Para 7-101) and perform Steps

(3) and (4) below.

(b) If DDEC ECM connector is

damaged, replace ECM

(Para 7-56).

ECM harness connectors are OK,

replace DDEC ECM (Para 7-56).

(3) Connect vehicle harness connector

MC18 to DDEC ECM and tighten

screw.

(4) Close top engine access cover.