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Bendix Technical Assistance Team
For direct personal technical support, call the Bendix
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-800-AIR-BRAKE (1-800-247-2725),
Monday through Friday, 8:00 A.M. to 6:00 P.M. EST, and
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Alternatively, you may e-mail the Bendix technical
assistance team at: tbs.techteam@bendix.com.
To better serve you, please record the following
information before you call the Bendix Tech Team,
or include this information in your e-mail:
• Bendix product model number, part number and
configuration.
• Vehicle make and model.
• Vehicle configuration. (Number of axles, tire size,
etc.)
• System performance symptoms: When do they
occur?
• What faults have been identified using LEDs, blink
codes or diagnostic tools?
• What troubleshooting/measurements have been
performed?
• What Bendix service data literature do you have or
need?
SERVICING THE TABS-6 MODULE
CAUTION: All TABS-6 modules are initially
defaulted to 2S/1M and may auto-configure to
another ABS configuration if additional sensors
and/or ABS modulators are detected. An incorrect
ABS configuration may cause fault indication or
degraded ABS performance. Before and after
activating a self-configuration, always check the
current ABS configuration by using blink code
diagnostics or a diagnostic tool.
Prior to performing service to the TABS-6 module, always
perform the following steps:
1. Follow all Safe Maintenance Practices including, but
not limited to, those on page 2 of this document.
2. Turn power off.
3. Drain the air pressure from all reservoirs.
4. Remove as much contamination as possible prior to
disconnecting electrical connections and air hoses.
5. Note the TABS-6 module's mounting position on the
vehicle.
REMOVING THE TABS-6 MODULE
1. Open the cover by sliding the locking tab to the left.
Retain the cover.
2. Disconnect the 5 or 18-pin ECU connector and the two
2-pin wheel speed sensor connectors.
3. Mark for reinstallation and then remove all air hoses
and plugs connected to the module.
4. Remove the module from the vehicle by removing the
mounting fasteners or by rotating the entire assembly
counter-clockwise from the tank mount.
SERVICE REPLACEMENT OF OTHER ABS
CONTROLLERS
The TABS-6 module is designed to be used as the
service replacement part for the Bendix
MC-30
and A-18
trailer ABS controllers. When
™
™
controller service replacement parts are required, a
TABS-6 module and pigtail harness must replace the entire
MC-12
, MC-30
or A-18
™
™
harness. When replacing an MCE-12
integral emergency function (EV-2
by a DC-4
and TR-3
valve combination. See pages 18-
™
™
21 for plumbing details. TABS-6 module kits are available
to replace all MC-12
™
assemblies and harnesses. For more information, contact
Bendix or your local authorized Bendix parts outlet.
1. Disconnect the power connector and wheel speed
sensors from the MC-12
harness.
2. Remove all air hoses and plugs connected to the
unit.
3. Remove the MC-12
and pigtail from the vehicle by removing the mounting
bracket nuts or by rotating the entire assembly counter
clockwise from the tank nipple mount.
4. Install the new pigtail, starting at the power connector
and properly securing the harness every 18 inches to
the ECU location.
5. Next, refer to the Reinstallation of the TABS-6 Module
section.
REINSTALLATION OF THE TABS-6 MODULE
CAUTION! All TABS-6 module service replacement
parts are initially defaulted to S/M and may auto-
configure to another ABS configuration if additional
sensors and/or ABS modulators are detected. An
incorrect ABS configuration may cause fault indication
or degraded ABS performance. Before and after
activating a self-configuration, always determine the
current ABS configuration by activating blink code
diagnostics.
Inspect the original mounting hardware: If it is in good
condition, it can be reused for installation. If replacement
®
controller assembly and pigtail
™
controller, the
™
valve) must be replaced
™
, MC-30
and A-18
™
™
or MC-30
controller pigtail
™
™
or MC-30
controller assembly
™
™
MC-12
,
™
controller
5
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Troubleshooting
