TM-9-2320-272-24-1

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4

JUNE 1998

TM-9-2320-272-24-1 - Page 214 of 1015

TM 9-2320-272-24-1

Table 2-3. Electrical Troubleshooting (Contd).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

SOCKET WIRE NO.

CIRCUIT

A

75

STOPLIGHT SWITCH

B

40

PANEL LIGHTS

C

22

DIRECTIONAL CONTROL

D

19

B.O DRIVING LIGHT

E

20-24

B.O. MARKER LIGHTS

F

15

BATTERY

POS. 24 VOLTS

H

21

SERVICE REAR LIGHTS

J

460-461

DIRECTIONAL INDICATOR

K

75

STOPLIGHT SWITCH

L

491

SERVICE PARKING LIGHTS

M

16

SERVICE HEADLIGHTS

N

23

B.O. STOPLIGHT

END OF TESTING !

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