VISUAL INSPECTION -726280567

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 trouble-

shooting 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.

NOTE

The following steps should only be

used if troubleshooting was started

at DDEC II Troubleshooting (All

Conditions) and you were referred here.

VISUAL INSPECTION

(1) Loosen screw and disconnect vehicle

harness connector MC18 at

DDEC ECM.

(2) Turn ON ENGINE switch

(TM 9-2320-364-10).

(3) Is CGL OFF with vehicle harness

disconnected?

(a) If CGL is ON with vehicle harness

connector disconnected, turn OFF

ENGINE switch and repair wire

509 (see schematic Fig 2-1) or

notify DS Maintenance.

(b) If CGL is OFF with vehicle

harness connector disconnected,

turn OFF ENGINE switch.

Wire 509 is OK.