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 160 of 855

TM 9-2350-277-20-1

ENGINE DOES NOT CRANK — Continued

0016 00

B6Y

1.

Remove harness 12349873 plug (1) from harness 12349881

jack (2) at vehicle bulkhead.

2.

Measure voltage between harness 12349881 jack (2) socket H

(3) and ground with START button pressed.

3.

Does MSD read less than 22 volts?

B6YN

1.

Faulty harness 12349873 circuit 74.

Beyond unit maintenance repair.

2.

Notify supervisor.

B7Y

1.

Set up MSD/ICE test 91. See TM 9-4910-571-12&P.

2.

Remove instrument panel for access (WP 0279 00).

3.

Remove harness 12349881 plug (1) from start switch jack (2).

4.

Measure resistance between start switch jack (2) pins

with START button pressed.

5.

Does MSD read 0 ohms?

B7YN

1.

Install harness 12349873 plug on

harness 12349881 jack.

2.

Replace engine start switch

(WP 0284 00).

3.

Verify no faults found.

001600-5

Change 5