Bendix Commercial Vehicle Systems EC-60 ESP CONTROLLERS ADV User Manual

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In addition, the size of the steer axle tires compared to

the drive axle tires also has to be within the ABS system

design. To avoid diagnostic trouble codes, the ratio of the

effective rolling circumference of the steer axle, divided by

the effective rolling circumference of the drive axle, must

be between 0.85 to 1.15.

CAUTION

: The ESP system effectiveness relies

on the accuracy of vehicle speed . If a major change

on the tire sizes occurs such that the odometer setting

needs to be changed, the Advanced ABS controller's

setting of tire sizes must be reprogrammed to new

values at the same time by a certified mechanic.

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 Bendix 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. The operating voltage range is 9.0

to 17.0 VDC for 12 volt systems, and 20 to 33.5 volts for

24 volt systems.

Steering Angle Sensor Diagnostic Trouble Code