This 48-page service data manual is the official Bendix Gen 4 Gen 5 ABS reference for diagnosing, troubleshooting, and servicing antilock brake and automatic traction control systems on heavy-duty trucks, tractors, buses, motor coaches, and RVs. It covers both cab-mount and frame-mount Electronic Control Unit (ECU) configurations and was originally marketed by Eaton Corporation before transitioning to the Bendix brand.
Official Bendix Gen 4 Gen 5 ABS document details
| Brand | Bendix Commercial Vehicle Systems |
| Model coverage | Gen 4 and Gen 5 ABS/ATC — cab-mount and frame-mount versions |
| System / Group | Bendix Air Brakes / Antilock Brake System / Automatic Traction Control |
| Publication no. | SD-13-4746 |
| Year / Revision | 5/2006 (subject to revision — see bendix.com for updates) |
| Pages | 48 |
| File size | 0.8 MB |
| Format | |
| Language | English |
Document table of contents
- ABS Operation
- ABS Component Function
- ABS Indicator Lamp / ABS Trailer Indicator Lamp
- Automatic Traction Control (ATC) System
- Component Overview — Electronic Control Units (ECUs)
- ABS Valves — Modulator Valve Operation Modes
- Optional Front Axle Modules
- Diagnostics — Retrieving Diagnostic Trouble Codes
- Clearing Diagnostic Trouble Codes and/or System Configuration
- System Configurations — Reading Configuration Codes
- ServiceRanger PC Software — Test Equipment
- Disabling ATC for Dyno Testing
- Speed Sensor Troubleshooting — The 17•12 Sensor Memory Diagnostic Trouble Code
- Wheel End Speed Sensor Repair
- Pressure Modulator Valve (PMV) Troubleshooting
- ABS Modulator Valve
- Automatic Traction Control (ATC) Valve Troubleshooting — ATC Valve Removal
- Performance Test of the Relay Valve
- Cab Mount ECU Pin Identification
- Frame Mount ECU Pin Identification
- Glossary
Applicable truck models
The manual applies to any tractor, truck, bus, motor coach, or RV equipped with a Bendix Gen 4 or Gen 5 ABS/ATC system in either the cab-mount or frame-mount ECU configuration. It references Pressure Modulator Valves (PMV), wheel speed sensors with tone rings (100 teeth, maximum runout .008), rear axle in-drum speed sensors, relay valves, and ATC differential control circuits. The document includes blink-code fault tables covering sensor faults, solenoid short/open circuits, and power circuit diagnostic trouble codes with SPN/FMI cross-references. ECU pin identification charts are provided for both mounting styles. System voltage requirements are 9 to 16 volts. For current technical resources, visit Bendix Commercial Vehicle Systems.
Who needs this Bendix Gen 4 Gen 5 ABS manual
Fleet maintenance technicians, independent diesel mechanics, and workshop owners servicing heavy-duty vehicles with Bendix ABS/ATC systems will use this manual daily for fault code retrieval, speed sensor diagnostics, PMV troubleshooting, and ATC valve service procedures.
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