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 416 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).

12. Remove passenger’s map

lamp (para 3-99), and

go to step 13.

13. Check for ground at

12-volts dc

Install

Repair circuit

circuit 99A-BK ter-

nominal.

driver’s map

99A-BK (para

minal of connector.

lamp (para

3-127).

Install

3-99), and go

passenger’s map

to step 14.

lamp (para

3-99).

Install

trim panel

(para 3-276).

14. Remove driver’s map

lamp (para 3-99), and

go to step 15.

15. Check for ground at

12-volts dc

Install passen-

Repair circuit

circuit 99B-BK ter-

nominal.

ger’s map lamp

99B-BK (para

minal of connector.

(para 3-99),

3-127).

Install

and go to step driver’s map

3-99).

Install

trim panel

(para 3-276).

16. lamp (para

12-volts dc

Utility outlet

Repair circuit

circuit 99C-BK ter-

nominal.

receptacle

99C-BK (para

minal of utility

circuit OK.

3-127).

Install

outlet receptacle.

trim panel

(para 3-276).

2-290