TM-9-2320-283-20-1

TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915A1

TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE PART 1 OF 3

DECEMBER 1983

TM-9-2320-283-20-1 - Page 393 of 926

TM 9-2320-283-20-1

TROUBLESHOOTING.

2-11. TROUBLESHOOTING PROCEDURES (Continued).

MALFUNCTION

INSTRUCTION

INDICATION

YES

NO

82. ELECTRICAL HORN NOT WORKING (Continued).

5.

Check for voltage at

12-volts dc

Go to step 6.

Repair circuit

circuit 41B-PP terminal

nominal.

41B-PP and/or

of relay connector.

35A-PP (Para

3-127).

Install

relay RY-4 and

circuit breaker

bracket (para

3-112 and

3-114).

TA 236942

2-267