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 414 of 926

TM 9-2320-283-20-1

TROUBLESHOOTING.

2-11. TROUBLESHOOTING PROCEDURES (Continued).

MALFUNCTION

INSTRUCTION

INDICATION

YES

NO

90.

BOTH UTILITY OUTLET RECEPTACLES NOT WORKING (Continued).

8.

Check for ground at

12-volts dc

Go to step 9.

Repair circuit

circuit 98F-BK ter-

nominal.

98F-BK (para

minal of start switch

3-127).

Install

trim panel

(para 3-276).

9.

Check for ground at

12-volts dc

Go to step 10.

Repair circuit

circuit 98E-BK ter-

nominal.

98E-BK (para

minal of voltmeter.

3-127).

Install

trim panel

(para 3-276).

10. Disconnect circuit

98-BK from 98A-BK at

connector (located

behind instrument

gages), and go to step

12.

11. Check for ground at

12-volts dc

Connect circuit

Repair circuit

circuit 98-BK terminal

nominal.

98-BK to

98-BK (para

of connector.

99A-BK, and go

3-127).

Connect

to step 12.

circuit 98-BK

to 99A-BK, and

install trim

panel (para

3-276).

2-288