TM-9-2350-311-20-1
HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS
AUGUST 1994
TM-9-2350-311-20-1 - Page 771 of 1275
8-50 BULKHEAD-TO-DRIVER’S INSTRUMENT PANEL WIRING HARNESS —
CONTINUED
Connector
Wire
No.
Electrical Lead To:
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Service headlight dimmer switch —
low beam
Service headlight dimmer switch —
high beam
Service 6.0. IR headlight —
low beam
Service 6.0. IR headlight —
high beam
Not used
Master switch circuit
Blackout marker light — front
Fuel level switch — right lower tank
Bilge pump switch — energizing circuit
Fuel level switch — right upper tank
Fuel prime switch
Stop light switch — light switch
Light switch — dimmer switch
Main light switch power lead
18
17
515
514
459
20
31
450
29
76
75
16
15
Connector
Wire
No.
Electrical Lead To:
No.
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
Main light switch — panel lights
40
Main light switch — B.O. marker rear
24
Main light switch — B.O. stop light
23
Main light switch — service stop light
22
Main light switch — service taillight
21
High beam indicator light
519
Not used
Light circuits
20--24
Driver’s dome light, auxiliary outlet, and trailer
receptacle
37-38
Auxiliary outlet and trailer receptacle
37
Not used
Driver’s dome light
38
Connector dimmer switch
Connector dimmer switch
Connector lighting switch
Master warning switch
459L
8-126
TM 9-2350-311-20-1
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