TOTAL LENGTH OF CABLE IN CURCUIT FROM BATTERY TO MOST DISTANT
LAMP
12-Volt System
Amperes
(approx)
Up to 30
Feet
40 Feet
50 Feet
60 Feet
80 Feet
100 Feet 120 Feet
Gauge
Gauge
Gauge
Gauge
Gauge
Gauge
Gauge
1.0
14
2
14
3
14
4
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
14
12
14
14
12
12
5
14
6
14
7
14
8
14
10
14
14
14
14
14
14
12
12
12
12
12
14
12
12
12
14
12
12
10
12
12
10
10
12
10
10
10
12
10
10
8
11
14
12
14
15
12
18
12
20
12
12
12
12
12
12
10
10
10
10
10
10
10
8
8
10
10
8
8
10
8
8
8
8
8
8
8
8
8
8
6
25
12
10
8
8
8
6
6
30
12
10
8
8
8
6
6
35
12
10
8
8
6
6
6
Recommended minimum wire gauge for stop light and ground circuits.
STOP LIGHT (Red) GROUND (White)
Single trailer (up to 50' length)
Doubles trailer (2-28' lengths)
Doubles trailer (2-40' lengths)
Triples trailer (3-28' lengths)
-12 Gauge
-12 Gauge
-10 Gauge
10 Gauge
10 Gauge
10 Gauge
8 gauge
8 gauge
Figure 6-60 - Recommended wire gauges for trailer wiring.
Figure 6-61
is a quick reference for troubleshooting electrical systems. It is always
recommended to refer to the service manual for detailed information for troubleshooting
and repairs.
NAVEDTRA 14050A
6-58