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 confi gure 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, and turn off the ignition. Locate the Bendix
®
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. Inspect the wire harnesses and connectors for corrosion,
damage, etc. Replace as necessary. Insert the wire
harness connectors into the replacement ECU and ensure
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-confi guration
to adjust to the number of wheel speed sensors and/or the
Automatic Traction Control (ATC) confi guration of the vehicle.
To Self-Confi gure:
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-confi guration if enabling ATC).
b. Self-Confi guration Procedure
Verify that all ECU, communication, sensor, and ABS
modulator connectors are in place and then turn the ignition
power on. Toggle the ATC enable/disable switch if equipped.
Activate an EC-30
™
controller self-confi guration by one of
the following actions:
• Hold a magnet on the reset location of the Remote
Diagnostic Unit (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
display for more than 6 seconds, but less than 11 seconds,
then remove the magnet to initiate a self-confi guration.
• Using ACom
™
Diagnostic Software (version 5.9 or higher)
in the "configuration window" select the "self-config"
button or select "modify and confi gure the ECU" from the
parameters available in the "confi guration window".
When the self-confi guration process is complete, the EC-30
™
controller will automatically go through the power-up sequence
and show the new confi guration on its LED diagnostic display.
If the EC-30
™
controller was properly confi gured 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
5.9 or higher), confi rm that the ECU installed has this feature.
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
