This Bendix EC-30 ABS service manual is the official 50-page technical reference for the EC-30 ABS/ATC controller used on International trucks. It covers system components, hardware configurations, diagnostic procedures, blink code interpretation, and step-by-step troubleshooting flowcharts for wheel speed sensors, modulators, warning lamps, and serial communication.
Official Bendix EC-30 ABS document details
| Brand | Bendix |
| Model coverage | EC-30 ABS/ATC Controller (CR-30, CR-30BP, AT-30, AT-30BP valve assemblies) |
| System / Group | EC-30 / Manuals — Antilock Braking System & Automatic Traction Control |
| Publication no. | S04043 |
| Year / Revision | 08/30/2000 |
| Pages | 50 |
| File size | 1.1 MB |
| Format | |
| Language | English |
Document table of contents
- Introduction
- Components
- Enclosure — EC-30 Comparison to EC-16 and EC-17
- Mounting — ECU Only and Valve Mounted EC-30
- EC-30 Hardware Configurations
- EC-30 with PLC (Power Line Carrier)
- EC-30 Inputs — Power/Ground, Wheel Speed Sensors, ATC Enable/Disable Switch, Blink Code Switch, Brake Switch Input
- EC-30 Outputs — ABS Modulators, ATC Modulator, ABS Warning Lamp, Retarder Disable Relay, Trailer ABS Warning Lamp, J1939/J1587 Diagnostic Link, Engine Torque Reduction
- Power-Up Sequence — ABS Warning Lamp, ATC Lamp, Modulator Chuff Test
- ABS Operation
- Blink Code Diagnostics
- Bendix DCI — Diagnostic Communications Interface
- Troubleshooting Sections A–K: ABS Warning Lamp, ATC Active/Warning Lamp, Trailer ABS Warning Lamp, Diagnostic LED Quick Reference, Power to the EC-30, Wheel Speed Sensors, ABS Modulators, ATC Modulator, EC-30 Serial Communication
Applicable truck models
This manual was published by International Truck and Engine Corporation and applies to vehicles equipped with the Bendix EC-30 ABS/ATC controller. Valve assembly variants include the CR-30 (AR-1 valve, all vehicles), CR-30BP (AR-2 valve with bobtail brake proportioning, tractors only), AT-30 (ATR-1 valve with ATC, all vehicles), and AT-30BP (ATR-2 valve with ATC and bobtail proportioning, tractors only). The EC-30 supports four- and six-sensor configurations and communicates via J1939, J1922, and J1587 data links. For current product information, visit the official Bendix commercial vehicle systems website.
Who needs this Bendix EC-30 ABS manual
Truck technicians and workshop owners servicing International tractors or other heavy vehicles with Bendix EC-30 controllers will find this manual essential. It provides the modulator chuff test procedure, blink code fault tables, DCI interface instructions, and eleven dedicated troubleshooting flowcharts needed for efficient ABS and ATC diagnosis.
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