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Technical Bulletin

Bulletin No: TCH-013-015 Effective Date: 1/8/10 Cancels: TCH-013-015 dated 7/2/07 Page: 1 of 2

Subject: Bendix

TABS-6 Trailer ABS Premium (P/N 5014016) Re-

conﬁ guration

The Bendix

TABS-6 ABS Module

The purpose of this Bulletin is to alert technicians investigating an illuminated ABS lamp on trailers conﬁ gured

as 4S/2M - Side ABS, and equipped with TABS-6 Trailer ABS Premium Module (P/N 5014016 only), where the

Diagnostic Trouble Code (DTC) indicates a MOD3 error.

This Bulletin covers cases where the MOD3 error code indicates that the TABS-6 Premium Module has

inadvertently re-conﬁ gured up to 4S/3M, but is not able to communicate with an expected (but not present)

additional modulator.

For the units in the ﬁ eld where this DTC has occurred, the technician can use either of the following two processes

to re-conﬁ gure the module back to 4S/2M-Side, and disable the auto-conﬁ guration to prevent any further MOD3

DTCs:

1. Use Bendix

ACom

Diagnostic Software

The ABS conﬁ guration can be restored to 4S/2M Side by using Bendix

ACom

Diagnostic Software.

A no-charge download is available at www.bendix.com, or you may order a CD (item number BW2329)

from the Literature Center on bendix.com. ACom

software communicates via your computer’s serial,

parallel or USB port through an RP-1210A compliant device that connects to the vehicle’s diagnostic

connector.

– OR –

2. Use a Special Bendix

Trailer Remote Diagnostic Unit (TRDU).

Connect the special TRDU unit with a 7-way adaptor (part number 802165) at the nose of the trailer

through the SAE J560 connector, or use an adapter harness to connect to the diagnostic connector

on the ABS pigtail harness. In either arrangement, the special TRDU unit will restore the TABS-6

conﬁ guration to 4S/2M-Side and disable auto-conﬁ gurations. This re-conﬁ guration of the TABS-6

Premium ECU is performed across the PLC (Power Line Carrier) of the trailer.

Two kit options are available:

1. K022314 - special TRDU unit & instruction sheet

2. K022315 - special TRDU unit, adapter harness & instruction sheet.

NOTICE: Particular care should be taken to ensure that the TRDU remains connected until the

LED sequence indicating a successful conﬁ guration is seen. Refer to the instruction sheet (S-

1492) that comes with the TRDU. Failure to do so can result in an ECU 6 (Conﬁ guration) DTC.

Should this occur, reconnect the special TRDU and repeat the above instructions to complete

the conﬁ guration.

Trailer Remote Diagnostic Unit (TRDU)

(Included in Kits K022314 and K022315)

Special TRDU

(Identiﬁ ed by an

Orange Label)

(continued)

Summary of content (2 pages)

PAGE 1
Technical Bulletin Bulletin No: TCH-013-015 Subject: Effective Date: 1/8/10 Cancels: TCH-013-015 dated 7/2/07 Page: 1 of 2 Bendix® TABS-6 Trailer ABS Premium (P/N 5014016) Re-configuration The Bendix® TABS-6 ABS Module Special TRDU (Identified by an Orange Label) Trailer Remote Diagnostic Unit (TRDU) (Included in Kits K022314 and K022315) The purpose of this Bulletin is to alert technicians investigating an illuminated ABS lamp on trailers configured as 4S/2M - Side ABS, and equipped with TABS-6 Trai
PAGE 2
Background The Bendix® TABS-6 module is an integrated trailer ABS controller and modulator for air-braked heavy-duty trailers, semi-trailers and dollies. The module acts as a relay valve during normal braking, but during ABS events, it will intervene to help improve lateral stability during braking. All modules include an Electronic Control Unit (ECU) and Modulator Relay Valve which are integrated into a single self-contained 2S/1M (two sensor, one modulator) trailer ABS unit.