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Knorr-Bremse TEBS KB4TA-D User Manual

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Doc. No. Y364866 (EN - Rev. 000)
March 2020
TEBS KB4TAD
SERVICE MANUAL
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Knorr-Bremse TEBS KB4TA-D Specifications

General IconGeneral
CategoryAutomobile Accessories
ManufacturerKnorr-Bremse
Operating Temperature Range-40°C to +85°C
Housing MaterialAluminum
TypeTEBS (Trailer EBS)
EBS FunctionElectronic Braking System
Power Supply24V DC
ApplicationTrailers
CompatibilityVarious Trailer Types
FunctionElectronic Braking System for Trailers
Communication ProtocolCAN
Protection FeaturesOvervoltage, Short Circuit

Summary

Safety and Environment Guidelines

KB4TA-D System Overview

1.1 Function

Outlines the basic function and components of the KB4TA-D brake system.

1.2 System Description

Details the system's operation, including power-up, ABS, odometer, and configuration options.

ERROR DETECTION

2.1 ABS Shutdown

Explains how the system disables ABS functions based on detected errors.

2.1.1 ECU Errors

Covers errors related to the Electronic Control Unit (ECU).

2.1.2 Low and High Voltage Operation

Details ABS function disablement due to supply voltage variations.

KB4TA-D ABS ECU

3.1 Function

Describes the primary role and design specifications of the KB4TA-D ABS ECU.

3.2 Electrical Connections

Details the ECU's connectors, pin assignments, and wiring for various functions.

3.2.2 Stop Lamp Power

Explains the connection for stop lamp power and optional headboard warning light.

3.3 Installation

Provides instructions and diagrams for mounting and installing the KB4TA-D ECU.

3.4 Label Information

Explains the labels and identification details on the KB4TA-D ECU.

KB4TA-D System Components

4.1 Functions

Outlines the main functions of the KB4TA and KB4TA D brake systems.

4.1.1 Coupling Heads

Describes the function and technical data of trailer coupling heads.

4.1.2 Park / Shunt Valve

Details the features and technical data of the Park/Shunt Valve.

4.1.3 ABS Modulator Relay Valve

Explains the operation and types of ABS Modulator Relay Valves.

4.1.4 Wheel Speed Sensor

Details the function, installation, and technical data of wheel speed sensors.

4.1.5 TABS Bracket

Explains the purpose and advantages of the TABS bracket for integrated ABS installation.

4.1.6 Cables for KB4TA-D

Details the various cables used in KB4TA-D trailer ABS systems.

KB4TA-D System Diagnostics And Configuration

5.1 Description

Introduces the concept of diagnostics and its different levels for the system.

5.2 Operations

Covers system operations like warning lamp signals and diagnostic programs.

5.2.1 ADL (Auxiliary Design Language) Configuration

Explains how to configure auxiliary functions using the ADL programming language.

5.3 Diagnostic Components/Tools

Lists necessary tools and interfaces for system diagnostics.

5.3.2 Blink Code Diagnostics

Details diagnostics via blink codes from the ABS warning lamp.

5.3.3 Diagnostic Trouble Codes (DTCs)

Explains displaying and interpreting active and inactive diagnostic trouble codes.

5.3.4 Blink Code Label

Describes the DTC label and how to read blink code sequences.

5.3.5 Diagnostic Trouble Codes - Blink Code Quick Reference

Provides a quick reference for diagnostic trouble codes and required actions.

5.3.6 Diagnostic Troubleshooting Flow Charts

Offers flow charts to help diagnose and resolve system issues.