BENDIX MC-30 TRAILER ABS CONTROLLER Guía para resolver problemas descargar pdf (Pagina 8)

AUTO-CALIBRATION

Auto-calibration is a feature that allows the EC-30

™

controller to compensate for tire size changes throughout

the life of the vehicle. Auto-calibration is needed for proper

ATC performance. The EC-30

™

controller will perform an

auto-calibration when the tire size difference exceeds

approximately 4 percent.

Tire size (rolling radius) setting information can be retrieved

or adjusted by using Bendix ABS Diagnostics Software or

MPSI.

If issues occur with the ATC function following a tire size

change, contact Bendix or refer to your local authorized

Bendix dealer.

EC-30

™

CONTROLLER CONFIGURABLE

PARAMETERS

The EC-30

™

controller has various conﬁ gurable function

parameters that can be enabled to provide the user with

additional or customized features. The default settings

for these parameters are chosen by the vehicle OEM.

The conﬁ gurable features include serial communications

message broadcasts, alternative lamp control, various I/O

recognition, ABS control settings and others. To ensure

that the unit you are working with has the correct default

settings, use only the correct replacement part number.

However, most of these settings can be altered using the

Bendix ABS Diagnostic Software program. For further

information, contact Bendix or refer to your local authorized

Bendix dealer.

EC-30

™

CONTROLLER SELF-CONFIGURATION

The self-conﬁ guration feature allows wheel speed sensor

and ATC conﬁ gurations to be altered when activated with

a magnet or diagnostic tool. This is generally performed

shortly after installing or replacing an EC-30

™

controller.

Self-Conﬁ guration of Wheel Speed Sensors

The number of speed sensors connected to the EC-30

™

controller will be detected during the self-conﬁ guration

process. The EC-30

™

controller will configure for six

sensors if it detects one or both Mid sensors. If only one Mid

sensor is detected, the ABS warning lamp and appropriate

diagnostic LEDs will illuminate following the self-conﬁ gure.

If no Mid sensors are detected, the EC-30

™

controller will

conﬁ gure for four sensors.

Self-Conﬁ guration of ATC

In order to self-conﬁ gure for engine torque limiting ATC,

the following must be connected to the EC-30

™

controller

and be operational:

- J1939 or J1922 communication link to the engine

- ATC active/warning lamp

- ATC enable/disable switch (must be toggled prior to

self-conﬁ guration)

In order to self-conﬁ gure for differential braking ATC, the

ATC modulator must also be connected to the EC-30

™

controller and be operational.

Some EC-30

™

controller part numbers will not support six

wheel speed sensors or ATC. To ensure that the EC-30

™

controller you are working with has the correct hardware

capability, use only the correct replacement part number.

EC-30

™

Controller Self-Conﬁ guration Procedure

Verify that all ECU, communication, sensor, ABS modulator

and ATC 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 diagnostic

display for about 20 seconds (until the LEDs begin to

rapidly roll), then remove the magnet.

- Press the DCI reset switch for about 20 seconds (until

the LEDs begin to rapidly roll), then release the switch.

- Use the self-conﬁ guration menu selection on Bendix

ABS Diagnostic Software or the MPSI tool.

When the self-configuration process is complete, the

EC-30

™

controller will automatically go through the power-

up sequence and show the new conﬁ guration on the

diagnostic display. If the EC-30

™

controller was properly

conﬁ gured for ATC, the ATC active/warning lamp will also

show the ATC conﬁ guration. Refer to the EC-30

™

controller

Power-Up Sequence section.

FAULT DETECTION

The EC-30

™

controller contains self-testing diagnostic

circuitry that continuously checks for proper operation of the

ABS/ATC components and wiring. The EC-30

™

controller

controls dash mounted warning lamps to advise the driver

of the status of the system.

When the EC-30

™

controller senses an erroneous system

condition, it stores the fault code in memory, activates the

appropriate warning lamp and disables all or part of the effected

ABS or ATC functions. The faulted component is also identiﬁ ed

on the diagnostic display on the EC-30

™

controller.

In most cases, the EC-30

™

controller will automatically reset

(self-heal) the active fault code when the fault is corrected.

However, repeated occurrences of a given fault will cause the

fault code to latch. Once the fault code is latched, a manual reset

is required. Latching of faults can assist in the troubleshooting

of intermittent faults. The fault code is stored in the EC-30

™

controller memory, even when power is removed.

After repair, latched fault codes can be reset by brieﬂ y

holding a magnet on the reset location of the EC-30

™

controller diagnostic display. Fault codes can also be reset

with the blink code switch or with a diagnostic tool.

When a fault self-heals or is manually reset, the fault code

remains in fault history. Fault history can be retrieved by

using blink code diagnostics or a diagnostic tool.

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