Pin Number Function Wire Color
1 Left Turn Signal Black/White
2 Rear Fog Light White
3
a
Ground/Common Return for Contacts (Pins)
1and2and4to8
Brown
4 Right Turn Signal Black/Green
5 Right Rear Position, Side Marker Lights, and
Rear Registration Plate Illumination Device.
b
Green/Red
6 Stop Lights Black/Red
7 Left Rear Position, Side Marker Lights, and
Rear Registration Plate Illumination Device.
b
Green/Black
8 Reverse lights Blue/Red
9 Permanent Power Supply (+12V) Red
10 Power Supply Controlled by Ignition Switch
(+12V)
Yellow
11
a
Return for Contact (Pin) 10 Yellow/Brown
12 Reserve for Future Allocation –
13
a
Return for Contact (Pin) 9 Red/Brown
NOTE:
The allocation pin 12 has been changed from “Coding for coupled Trailer” to “Reserve for Future Allocation.”
a
The three return circuits shall not be connected electrically in the trailer.
b
The rear position registration plate illumination device shall be connected such that no light of the device has a common connection with both pins
5 and 7.
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