Fuse box
144
D760.H03E-001.H1907
Arrangement of trailer power socket outlet contacts
Semi-trailer Tractor Coupling and Operation
Coupling
The coupling for semi-trailer tractor is
installed behind the cab
Jumper hose joint
This hose is used to convey the com-
pressed air to the trailer. Seen from back to
front of the vehicle, the red one is the gas sup-
ply hose joint and the yellow one is the control
signal connector.
Jumper spiral pipe
Seen from back of the vehicle, the red
brake air supply spiral pipe for supplying com-
pressed air to the trailer is located on right side,
and the yellow brake control spiral pipe for
sending brake signal to the trailer is located on
left side.
Jumper power
Jumper cable is used for supplying power
to trailer. It is divided into ordinary power cable
and ABS power cable. When disconnected
from the trailer, the cable connector may be
fixed onto the spare socket.
Terminal No. Wire No. Usage
Maximum available power
of trailer(W)
1 100 Ground wire -
2 8239
Clearance lamp and
marker lamp
200
3 9321 Left turn signal lamp 85
4 2533 Brake lamp 85
5 9322 Right turn signal lamp 85
6 9243 Rear fog lamp 85
7 2433 Reversing lamp 85
1. Brake control spiral pipe joint
2. Trailer power cable socket
3. Trailer power cable empty socket
4. Trailer EBS/ABS Power cable
empty socket
5. Trailer EBS/ABS Power cable
socket
6. Brake air supply spiral pipe joint
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