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 713 of 855

TM 9-2350-277-20-1

MSD/ICE TEST 32 AIR BOX PRESSURE DIAGNOSTIC

TROUBLESHOOTING — Continued

0147 00

4Y

1.

Set up Test 91. See TM 9-6625-2301-14&P.

2.

Measure resistance between harness 12354593 plug

P1 (1), pins d (2) and j (3).

3.

Does MSD read infinity?

4YN

GO TO

DY

(PAGE 0147 00-9)

5Y

1.

Move jumper wire on harness 12354672 plug P9 (1) from

pins3and4topins1(2)and2(3)

.

2.

Measure resistance between harness 12354593 plug

P1 (4), pins d (5) and j (6).

3.

Does MSD read 0 ohms?

5YN

GO TO

EY

(PAGE 0147 00-10)

6Y

1.

Has air box pressure tachometer been replaced?

6YN

1.

Replace air box pressure tachometer

(WP 0327 00).

2.

Verify no faults found.

014700-4

Change 5