BENDIX TABS-6 TRAILER ABS MODULE manual SD-13-4767, Introduction

SD-13-4767

Bendix® TABS-6 Trailer ABS Module

			The ECU Connector
ECU Cover	3/8" NPT Control	ECU Pin-out Label	Varies for Standard and
(Sealed)		(See Page 31)	Premium - See Chart
	Port with
	Integral Filter
	ECU Connector
	Cover
Integrated	(Removable)
Modulator			The Standard TABS‑6
Relay Valve		Wheel Speed
		Sensor	Module uses a
			5-Pin Connector
		Connectors
	Through-holes
	for Frame
3/4" NPT	(Chassis)
	Mounting
Supply Port			The Premium TABS‑6
Four (4) 3/8" NPT	Part Number
			Module uses an
Delivery Ports		To Remove Cover
	Label		18-Pin Connector
(To Brake Chambers)	(See Page 31)	Slide Lock Tab

FIGURE 1 - TABS-6 standard and Premium MODULeS

INTRODUCTION

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 stability. All modules include an Electronic Control Unit (ECU) and Modulator Relay Valve (MRV) which are integrated into a single self-contained 2S/1M (two-sensor, one modulator) trailer ABS unit. The Premium TABS-6 module is auto-configurable to control more sensors and modulators (up to 4S/3M) from its default 2S/1M.

Bendix® TABS-6 modules also feature:

•Internal electrical connections to the primary MRV, eliminating the need for external pigtail harnesses.

•Optional mounting to the service reservoir or to the chassis, without additional brackets.

•Blink code diagnostics and support for advanced diagnostic tools.

•Support for Power Line Carrier (PLC) communication to the towing vehicle.

•A pressure equalizing valve in the sealed ECU housing to give improved protection from water, etc.

•A locking dust cover to provide additional electrical connector and cable protection.

•A serviceable nylon filter to help prevent foreign material from entering the control port.

TABLE OF CONTENTS	PAGE
General System Information

Introduction . . . . . . . . . . . . . . . .1

Safe Maintenance Practices . . . . . . . . . 2 Components . . . . . . . . . . . . . . . 2

Mounting Configurations . . . . . . . . . . .2 PLC Communications . . . . . . . . . . . .2

Wiring Harness (Pigtail) . . . . . . . . . . . 3 Power and Ground . . . . . . . . . . . . . . . . . . . . . . . . . .4

ABS Indicator Lamp . . . . . . . . . . . . .4 Wheel Speed Sensors . . . . . . . . . . . .5

BR9235™ ABS Modulator Valve . . . . . . . . 5 J1708/J1587 Diagnostic Link . . . . . . . . . 6

Auxiliary I/O . . . . . . . . . . . . . . . .6 ABS Flex™ Program . . . . . . . . . . . . .6

Customer Scratch Pad . . . . . . . . . . . . . . . . . . . . . . .6 Power-up Sequence . . . . . . . . . . . . 6

ABS Operation . . . . . . . . . . . . . . .7 Auto-Configuration . . . . . . . . . . . . . 8

Odometer Function . . . . . . . . . . . . .8 Non-standard Tire Size . . . . . . . . . . . 8

Diagnostic Trouble Code Detection . . . . . . .8 Blink Code Diagnostics . . . . . . . . . . . 9

Bendix ABS Diagnostic Tools . . . . . . . . .13 Contacting Bendix . . . . . . . . . . . . .14

Servicing the Module . . . . . . . . . . . .14 Removing the Module . . . . . . . . . . . 14

Service Replacement using the Module . . . . 15 Reinstallation . . . . . . . . . . . . . . .15

Leakage And Operational Tests . . . . . . . .15 ABS Wiring . . . . . . . . . . . . . . . 16

Troubleshooting . . . . . . . . . . . . 17-27