Bendix Commercial Vehicle Systems EC-60 ESP CONTROLLERS ADV - Manual (Page 18)

18
OBTAINING A NEW BENDIx EC-60
ADVANCED CONTROLLER
Should the Advanced Bendix EC-60 controller require
replacement, certain steps must be followed:
1. Record the vehicle model, VIN, year and date of
manufacture from the vehicle.
2. Record the part number of the Bendix EC-60 Advanced
Controller.
3. Provide this information to your local OEM vehicle
service department to obtain a new ECU. The OEM
service department will install the same parameter set
in the new controller that was loaded into the original
ECU at the vehicle OEM assembly facility.
INSTALLING A NEW BENDIx ® EC-60 ™
CONTROLLER
CAUTION
When replacing the Bendix EC-60
controller, verify with the OEM service department that the
unit you are installing has the correct parameter set. Failure
to do so could result in a loss of features or degraded ESP
performance.
For further information, contact either the vehicle
manufacturer, Bendix or your local authorized Bendix
dealer.
1. Position and secure the Bendix
® EC-60 ™ controller in
the original mounting orientation using the mounting
bolts retained during removal. Use no more torque
than is necessary to firmly secure the ECU into position.
Over-tightening the mounting hardware can cause
damage to the EC-60 ™ controller.
2. Reconnect the electrical connectors to the EC-60 ™
controller.
3. Apply power and monitor the Bendix EC-60 controller
power-up sequence to verify proper system operation.
See Troubleshooting: Wiring section beginning on page
45 for more information on wire harnesses.
WARNING : Bendix ESP stability system is validated
with specific Bendix ® brand components. Always use
Bendix ® brand replacement parts to prevent compromising
system performance. Bendix is not able to validate the
safe and reliable use of substitute or alternate components
that may be available from other manufacturers. Further,
suppliers of a non-Bendix ® brand ABS component may
implement design changes in their component (without the
knowledge or approval of Bendix) which could negatively
affect antilock system reliability and braking performance
issues.
REMOVAL OF THE STEERING ANGLE
SENSOR
Service Checks:
1. Check all wiring and connectors. Some installations
also include an intermediate connector from the
steering angle sensor to the main vehicle wire harness.
Make sure all connections are free from visible damage.
2. Examine the sensor. Make sure the sensor, its
mounting screws, and the interface between the hub
and the steering column are not damaged.
Diagnostics:
The steering angle sensor is only operational in conjunction
with an Advanced ABS ECU. No independent diagnostics
can be performed on the sensor.
Removal:
1. Remove steering column sheathing.
2. Depending upon manufacturer, the steering angle
sensor could be located either near the steering wheel,
necessitating the removal of the steering wheel, or
near the joint to the vehicle steering mechanism,
necessitating the disconnection of this linkage.
3. Unplug sensor cable assembly from body of sensor.
Squeeze the mounting tabs and pull gently on the
connector until it disengages.
4. Unscrew all three of the mounting screws that hold the
body of the sensor to the steering column body.
5. Slide the sensor over the column to remove. Take note
if the sensor label is facing upward or downward.
Installation:
1. Obtain a new sensor. The sensor is not repairable in
the field.
2. Slide the sensor over the column. The center hub of the
sensor must be aligned with the corresponding notch
in the column. Different column manufacturers may
implement this hub alignment in different ways. The
sensor label should be facing in the same direction as
the removed sensor.
3. Assemble to column non-moving plate with three self-
locking screws.
4. Tighten screws to steering column manufacturer's
recommended torque specification.
5. Reconnect the connector. Ensure that there will be no
force applied to the sensor because the connector is
pulling on the sensor body.
6. If the wire harness leading to the sensor is being
replaced, ensure that it is adequately tie wrapped
so that the full motion of the steering column can be
achieved without pulling apart the connectors.
7. Reinstall the column sheathing. The sensor is not
protected against dirt or water intrusion, so care
must be taken not to introduce these elements during
installation.