92
8.1.1 Warning lamp
A warning lamp located on the driver’s console of the towing
vehicle is operated from the ISO 7638 power cable only when
the ECO Tronic EBS is powered by the ignition switch (Fig. 162).
As an option in addition to the cab warning lamp a trailer
mounted warning lamp may be provided as an auxiliary function.
This lamp shows the signal to the cab warning lamp (will only
function if the ISO 7638 power is connected).
Note: The signal produced may be different to that produced by
the cab device due to possible modifi cation of the cab device
by the towing vehicle.
8.1.2 System check procedure
1. When the ignition is turned on the warning lamp shows the
following fl ash sequences, according to the confi guration in
the Trailer Manager software, to indicate an error-free system:
Option A (Fig. 163)
ON for 2 seconds
Warning lamp O
K
and system self-
checking.
OFF
System self-check (not sensors)
completed
Option B (Fig. 164)
ON for 2 seconds
Warning lamp O
K
and system self-
checking.
OFF for 2 seconds
System self-checked and preparing to
check sensors.
ON until moving
System waiting for vehicle to move
above 10 km/h in order to check that
the sensors are working
OFF
Once the vehicle is moving above
10 km/h and the warning lamp clears,
the electronic system is fully checked.
In the case of an error the warning lamp comes on and stays on
if it is set according to option A, while it stays off if it is confi gured
according to option B.
2. During the self-check procedure, the system cycles the
EPRV’s. With foot brake applied one exhaust of air from each
EPRV will be audible (Fig. 165).
Once these two checks are made with correct results, no further
checks are required.
If the results are not satisfactory, Trailer Monitor or Trailer
Manager should be used to establish the diagnosis.
Fig. 162
8.1 System diagnostics
8 System
diagnostics
Fig. 165
2 X
0 X
1 X
2 X
0 X
1 X
22
21
22
21
22
21
22
21
ON
OFF
2 sec
ON
OFF
2 sec
2 sec
at 10 km/h
Fig. 163
Fig. 164
ON
OFF
ON
OFF
Option A
Option B
Summary of Contents for ECO Tronic EBS
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