Haldex EB+ Gen 2 - System Layout and Powering; ISO7638 - 7 Pin Power; ISO7638 - 5 Pin Power; ISO1185 (24 N) Power

The system fitted to your trailer may have 2 or 4 Sensors and 2
Modulators (EPRV's). The variants available being 2S/2M and 4S/2M.
The powering of the system is via :
ISO7638- 7 Pin - Full EBS function Fig 2.
The EB+ Gen 2 system can also be powered via :
ISO7638- 5 Pin - (No CAN data bus) ABS + ELS function only Fig 3.
4
Fig 2
ISO7638 - 7 Pin
EBS EB
+
= Full EBS function
Fig 3
ISO7638 - 5 Pin
ABS
EB
+
= ABS + ELS function only
No CAN data bus
Fig 4
ISO1185 - (24N)
ABS/EBS
EB
+
= On foot brake application
ABS function only
As a safety back-up ISO1185 (24N) - Stop Light powering provides
ABS function Fig 4.
The ISO7638 controls a Trailer warning device in the driver’s console .
The warning device has two functions:
• To indicate system integrity via the correct sequence (see Figs 10
and 11 on page 10) every time the EB+ Gen 2 ECU is electrically
powered up.
• To indicate by a permanent display, when the vehicle is moving, if
a fault has been detected.
The layout of the chassis components are shown in Fig 5
System Layout