TM-9-2350-277-20-1

CARRIER M113A3, M577A3, M1059A3, M1064A3, M1068A3 AND M58

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL VOLUME 1 OF 6

TM-9-2350-277-20-1 - Page 687 of 855

TM 9-2350-277-20-1

MSD/ICE TEST 25 FUEL RETURN PRESSURE DIAGNOSTIC

TROUBLESHOOTING — Continued

0144 00

5Y

1.

Move jumper wire on harness 12354672 plug P1 (1) from

pins3and4topins1(2)and2(3)

.

2.

Measure resistance between harness 12354593 plug P1

(4), pins g (5) and h (6).

3.

Does MSD read 0 ohms?

5YN

GO TO

EY

(PAGE 0144 00-10)

6Y

1.

Has fuel return pressure tachometer been replaced?

6YN

1.

Replace fuel return pressure

tachometer (WP 0325 00).

2.

Verify no faults found.

7Y

1.

Faulty MSD.

2.

Notify supervisor.

014400-4

Change 5