VISUAL INSPECTION -726280495

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.

VISUAL INSPECTION

(1) Check terminals at vehicle harness

connector (DDEC ECM and harness

side) for damage; bent, corroded and

unseated pins or terminals.

(a) If vehicle harness connector is

damaged, repair connector (Para

7-101) and perform Steps (2) and

(3) below.

(b) If DDEC ECM connector is

damaged, replace DDEC ECM

(Para 7-56) and go to Step 9 of

this Fault.

connectors are OK, replace

DDEC ECM (Para 7-56).

(2) Connect vehicle harness connector

MC18 to DDEC ECM and

tighten screw.

(3) Close top engine access cover.

VERIFY REPAIR

(1) Turn ON ENGINE switch

(TM 9-2320-364-10).

(2) Clear codes on DDR (Para 2-11).

(3) If CEL does not stay ON, start engine

and run for 8 minutes or until CEL

comes ON.

(a) If CHECK ENGINE light comes on

and stays on, perform Steps (4)

and (5) below and go to Fault

(b) If CHECK ENGINE light comes

on for about five seconds and

then goes off, fault has been

corrected.

(4) Turn OFF ENGINE switch.

(5) Disconnect DDR from DDL

connector MC13.