Bendix Commercial Vehicle Systems EC-80 ABS ATC SD - Manual (Page 11)

11
Reconfiguring Bendix
®
EC-80
™
Controllers
SYSTEM RECONFIGURATION
The Bendix ® EC‑80 ™ controller is designed to allow the
technician to change the default system settings (chosen
by the vehicle OEM) to provide additional or customized
features. When replacing an ECU, be sure to use an
equivalent Bendix ® replacement part number so that the
standard default settings are provided.
Depending on the version, the customizable features include
ABS control settings, engine module communication, etc.
Many of these settings can be reconfigured using a hand-
held diagnostic tool or PC‑based software, such as the
Bendix ® ACom ® Diagnostics program.
ECU RECONFIGURATION
Reconfiguring Bendix EC-80 ABS ECUs
Reconfiguring a Bendix EC‑80 ABS controller may be
carried out by using the Blink Code Switch or by using a
hand‑held or PC‑based diagnostic tool.
Note: During the reconfiguration process, and independently
from any reconfiguration being carried out by the technician,
standard ECUs automatically check the J1939 serial link
and communicate with other vehicle modules. In particular,
if the serial link shows that the vehicle has a retarder device
present, the ECU will configure itself to communicate with
the retarder device for improved ABS performance. For
example, if the ECU detects the presence of a retarder
disable relay during a reconfiguration, it will configure
itself to control the relay to disable the retarding device
as needed.
Reconfiguring Bendix EC-80 ATC ECUs
As with non‑ATC ECUs, the Bendix EC‑80 ATC ECU also
carries out — independently from any reconfiguration
being carried out by the technician — an automatic
check of the J1939 serial link and communicates with
other vehicle modules. This includes checking for ATC
and retarder disable relay operation. In addition, Bendix
EC‑80 ATC controllers will determine the number of wheel
speed sensors and PMVs installed and configure itself
accordingly.
6S/5M Configuration
Bendix EC-80 ATC controllers will configure for 6S/5M
operation when a reconfiguration event is initiated and the
ECU detects that an additional axle PMV is wired as follows:
PMV Connector ECU Connector
Hold Right Additional Axle Hold
Release Left Additional Axle Release
Common Right Additional Axle Common
See 6S/5M System Schematic (page 37) for details.
Reconfiguration Using the Blink Code Switch
The reconfiguration procedure is the same for ATC and
non‑ATC ECUs. With ignition power removed from the
Bendix EC‑80 controller, depress the blink code switch.
After the ignition power is activated, depress and release
the switch seven times to initiate a reconfiguration.
Diagnostic Tool
A reconfiguration event may be initiated using a hand-held
or PC‑based diagnostic tool to communicate with the ECU
over the SAE J1939 diagnostic link.