Bendix Commercial Vehicle Systems EC-60 ESP Controllers (Advanced Models) User Manual

Page 12

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12

SYSTEM IMPACT DURING ACTIVE

TROUBLE CODES
ABS PARTIAL SHUTDOWN

Depending on which component the trouble code is

detected, the ABS, ATC, and ESP functions may be fully

or partially disabled. Even with the ABS indicator lamp

illuminated, the EC-60

controller may still provide ABS

function on wheels that are not affected. The ABS system

controller should be serviced as soon as possible.

Steer Axle ABS Modulator Diagnostic Trouble

Code

ABS on the affected wheel is disabled. ABS and ATC on

all other wheels remains active. ESP is disabled.

Drive Axle/Additional Axle ABS Modulator

Diagnostic Trouble Code

ATC is disabled. ABS on the affected wheel is disabled. ABS

on all other wheels remains active. ESP is disabled.

Steer Axle Wheel Speed Sensor Diagnostic

Trouble Code

The wheel with the diagnostic trouble code is still controlled

by using input from the remaining wheel speed sensor on

the steer axle. ABS remains active on the rear wheels.

ATC and ESP are disabled.

Drive Axle/Additional Axle Wheel Speed Sensor

Diagnostic Trouble Code

ATC and ESP are disabled. In a four sensor system, ABS

on the affected wheel is disabled, but ABS on all other

wheels remains active.
In a six sensor system, ABS remains active by using input

from the remaining rear wheel speed sensor on the same

side.

ATC Modulator Diagnostic Trouble Code

ATC and ESP are disabled. ABS remains active.

J1939 Communication Diagnostic Trouble Code

ATC and ESP are disabled. ABS remains active.

ECU Diagnostic Trouble Code

ABS, ATC, and ESP are disabled. The system reverts to

normal braking.

Voltage Diagnostic Trouble Code

While voltage is out of range, ABS, ATC, and ESP are

disabled. The system reverts to normal braking. When the

correct voltage level is restored, full ABS and ATC function

is available. Operating voltage range is 9.0 to 17.0 VDC.

Steering Angle Sensor Diagnostic Trouble Code

ESP is disabled. ABS and ATC remain active.

Yaw Rate/Lateral Acceleration Sensor

Diagnostic Trouble Code

ESP is disabled. ABS and ATC remain active.

Brake Demand Pressure Sensor Diagnostic

Trouble Code

ESP is disabled. ABS and ATC remain active.

Load Sensor Diagnostic Trouble Code

ESP is disabled. ABS and ATC remain active.

Steer Axle TCV Diagnostic Trouble Code

ESP is disabled. ABS and ATC remain active.

Trailer PMV Diagnostic Trouble Code

ESP is disabled. ABS and ATC remain active.

SYSTEM CONFIGURATION

The EC-60

controller is designed to allow the technician to

change the default system settings (chosen by the vehicle

OEM) to provide additional or customized features.
Depending on the model, the customizable features include

ABS control settings, engine module communication etc.

Many of these settings can be reconfigured using a hand

held or PC-based software, such as the Bendix

®

ACom

Diagnostics program.

ECU RECONFIGURATION

Reconfigurating an EC-60

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,

the ECU will 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.

6S/5M Configuration

Advanced EC-60

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

Reconfiguration Using the Blink Code Switch

With ignition power removed from the EC-60

controller,

depress the blink code switch. After the ignition power is

activated, depress and release the switch seven times to

initiate a reconfiguration event.

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 J1587 diagnostic link.

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