RESISTANCE TEST -726280381

TM 9-2320-364-20-1

Allow engine to cool before performing troubleshooting maintenance. If necessary use insulated pads

and gloves. Hot engine components will burn and cause injury to personnel.

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.

RESISTANCE TEST

(1) Read resistance between wires 530

and 452 at engine harness connector,

terminals P2 and Y2.

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

present, repair wires 530 and/or

452 (see schematic Fig 2-2) or

notify DS Maintenance and

perform Step (2) below.

(b) If there are more than 10,000

ohms present, wires are OK.

(2) Connect engine harness connector

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

for about five seconds and then

goes off, fault has been corrected.

Perform Steps (4) and (5) below.

(b) If CHECK ENGINE light comes on

and stays on, perform Steps (4)

and (5) below and go to Fault

(4) Turn OFF ENGINE switch.

(5) Disconnect DDR from DDL

connector MC13.