BENDIX EC-30 ECU User manual

Installation
Instructions Bendix®EC-30™ECU
Replacement Kit
FIGURE 1 - BENDIX®EC-30™ECU, AND ACOM™DIAGNOSTICS SOFTWARE CD
This kit is intended for the replacement of a Bendix®
EC-30™Electronic Control Unit (ECU). The following are the
necessary steps to replace and configure the replacement
ECU.
PREPARATION:
Follow all standard industry safety precautions,
including, but not limited to, those listed at the end of
this document. Park the vehicle on level ground, chock
wheels,andturnofftheignition. LocatetheBendix®EC-30™
Electronic Control Unit (ECU) on the vehicle.
1. Remove the wire harness connectors from the ECU.
2. Remove the four fasteners securing the ECU and retain
for re-installation. Dispose of ECU.
3. Install the replacement ECU and tighten the fasteners to
98 in-lbs.
4. Inspectthewireharnessesandconnectorsforcorrosion,
damage, etc. Replace as necessary. Insert the wire
harnessconnectorsintothereplacementECUandensure
that the harness is securely attached to the vehicle.
Torque the connector retaining screws to 15-20 in-lbs.
CONFIGURATION PROCESS - PART ONE
Replacement ECUs typically require a self-configuration
to adjust to the number of wheel speed sensors and/or the
AutomaticTraction Control(ATC)configurationofthe vehicle.
To Self-Configure:
a. Verify that the following are connected to the EC-30™
ECU and are operational:
• All connectors to the ECU.
• J1939 or J1922 communication link to the engine.
• ATC active/indicator lamp.
• ATC enable/disable switch (NOTE: Switch must be
toggled prior to self-configuration if enabling ATC).
b. Self-Configuration Procedure
Verify that all ECU, communication, sensor, and ABS
modulator connectors are in place and then turn the ignition
poweron. ToggletheATC enable/disable switch ifequipped.
Activate an EC-30™controller self-configuration by one of
the following actions:
• Hold a magnet on the reset location of the Remote
DiagnosticUnit(RDU) for approximately 20 seconds (until
the LEDs begin to rapidly roll), then remove the magnet.
• Hold a magnet on the reset location of the diagnostic
displayfor more than 6seconds,but less than 11 seconds,
then remove the magnet to initiate a self-configuration.
• UsingACom™Diagnostic Software (version 5.9 or higher)
in the "configuration window" select the "self-config"
button or select "modify and configure the ECU" from the
parameters available in the "configuration window".
When the self-configuration process is complete, the EC-30™
controllerwillautomaticallygo throughthe power-upsequence
andshow thenewconfigurationon itsLEDdiagnostic display.
If the EC-30™controller was properly configured for wheel
speed sensors and ATC, both the ABS and ATC indicator
lamps will extinguish at the end of the power-up sequence.
CONFIGURATION PROCESS - PART TWO
Almost all Bendix replacement ECUs support Power Line
Carrier (PLC). Using ACom™Diagnostic Software (version
5.9or higher), confirmthatthe ECU installed hasthisfeature.
Some older vehicles, however, may not support PLC. In
these cases, it is recommended that the technician turn off
the ECU's support of PLC.
Bendix®EC-30™ECU
S-1516 © 2009 Bendix Commercial Vehicle Systems LLC 11/09 Printed in U.S.A. All Rights Reserved.
Use a magnet here to activate
the RESET switch
Bendix®ACom™
Diagnostic Software
BW2329 - available on
bendix.com to order or
download

2
Steps 2 through 5 are needed only if the vehicle does
not support PLC.
2. Using a diagnostic tool, look for an active Trailer ABS
Warning LampOpen(Dash Mounted) DiagnosticTrouble
Code (DTC). The DTC will be found as an active DTC,
however, the ABS indicator lamp will not be illuminated.
See Figure 2 for typical ACom™diagnostic trouble code
screen showing the Trailer Indicator Lamp DTC.
FIGURE 2 - DTC: INDICATOR LAMP OPEN
WhenusingACom™Diagnostics (version5.9and higher),
the configuration screen will show a configuration item
under Antilock, which will display:
In-CabTrailerWarningLamp–Enabled(PLC) orDisabled
(No PLC) - see Figure 3:
FIGURE 3 - ACOM™DIAGNOSTICS: IN-CAB TRAILER LAMP
3. TodisablePLC,Bendix®ACom™Diagnostics (version 5.9
orhigher) isrequired. The technicianwill needtoopenthe
configuration screen and see if the current configuration
showsPLCbeingused. Inaddition, verify that the in-cab
trailer lamp (located under "Antilock" in the configuration
window) is configured for PLC.
4. To change the setting, select the "Modify" button on the
rightside of theconfigurationscreen toopenthe "Change
Configuration" window. See Figure 4.
Click inside the box to remove the check mark, disabling
the In-Cab Trailer Lamp.
FIGURE 4 - CHANGE CONFIGURATION: IN-CAB TRAILER
LAMP
Removing the check mark switches off the PLC feature,
disables the in-cab trailer lamp and will also clear the
activeTrailerABS WarningLampOpen DTC. See Figure
5.
FIGURE 5 - IN-CAB TRAILER LAMP DISABLED
5. The configuration screen will now display "In Cab trailer
lamp: Disabled", showing that the configuration is
complete. See Figure 6.
FIGURE 6 - CONFIGURATION WINDOW: IN-CAB TRAILER
LAMP DISABLED
6. Use the ACom™diagnostic program to check that there
areno activeDTCs beforereturningthe vehicleto service.
Additional Assitance:
If there are communication issues, or the configuration
is unsuccessful after several attempts, contact Bendix at
1-800-AIR-BRAKE (1-800-247-2725), Monday through
Friday, 8:00A.M.to6:00 P.M.EST. Pleasehave the following
information ready when you call: Bendix product model
number, part number and configuration, vehicle make and
model,vehicle configuration (number of axles,tiresize, etc.).
Reference:
The full Service Data sheet for the Bendix®EC-30™ABS /
ATC Controller is SD-13-4815 (BW2160) and is available
for download on www.bendix.com, or order copies from the
Literature Center at the website.
Bendix®ACom™Diagnostic Software is available for free
download from www.bendix.com, or order copies from the
Literature Center at website.

3
GENERAL SAFETY GUIDELINES
WARNING! PLEASE READ AND FOLLOW
THESE INSTRUCTIONS TO AVOID
PERSONAL INJURY OR DEATH:
When working on or around a vehicle, the following
general precautions should be observed at all times.
1. Park the vehicle on a level surface, apply the
parking brakes, and always block the wheels.
Always wear safety glasses.
2. Stop the engine and remove ignition key when
working under or around the vehicle. When
working in the engine compartment, the engine
should be shut off and the ignition key should
be removed. Where circumstances require that
the engine be in operation, EXTREME CAUTION
should beused toprevent personalinjury resulting
from contactwith moving, rotating,leaking, heated
or electrically charged components.
3. Do not attempt to install, remove, disassemble
or assemble a component until you have read
and thoroughly understand the recommended
procedures. Use only the proper tools and
observe all precautions pertaining to use of those
tools.
4. If the work is being performed on the vehicle’s
air brake system, or any auxiliary pressurized air
systems, make certain to drain the air pressure
from all reservoirs before beginning ANY work
on the vehicle. If the vehicle is equipped with
an AD-IS®air dryer system or a dryer reservoir
module, be sure to drain the purge reservoir.
5. Following the vehicle manufacturer’s recommended
procedures, deactivate the electrical system in a
manner that safely removes all electrical power from
the vehicle.
6. Never exceed manufacturer’s recommended
pressures.
7. Neverconnector disconnect a hose or line containing
pressure; it may whip. Never remove a component
or plug unless you are certain all system pressure
has been depleted.
8. Use only genuine Bendix®replacement parts,
components and kits. Replacement hardware,
tubing, hose, fittings, etc. must be of equivalent
size, type and strength as original equipment and
be designed specifically for such applications and
systems.
9. Components with stripped threads or damaged
parts should be replaced rather than repaired. Do
not attempt repairs requiring machining or welding
unless specifically stated and approved by the
vehicle and component manufacturer.
10. Prior to returning the vehicle to service, make certain
all components and systems are restored to their
proper operating condition.
11. For vehicles with Automatic Traction Control (ATC),
the ATC function must be disabled (ATC indicator
lamp should be ON) prior to performing any vehicle
maintenance where one or more wheels on a drive
axle are lifted off the ground and moving.