BENDIX EC-60 ABS-ATC STD-PREM CONTROLLERS manual Troubleshooting Wiring, Wheel Speed Sensor Wiring

Page 34

 

Troubleshooting: Wiring (Continued)

 

 

 

 

Max. Gap

 

 

Mounting

(Sensor

to Exciter)

 

Speed Sensor

.015 Inches

 

Block

 

 

 

Mounting Block

 

 

 

 

 

 

WS-24speed

 

100 Tooth (typical)

 

 

sensor

 

Speed Sensor

 

 

 

 

Exciter Ring

 

 

100 Tooth

 

 

 

 

 

 

Brake Drum

 

Exciter

 

 

 

Ring

 

 

 

 

WS-24Speed

 

 

 

Sensor (90

Deg.)

 

 

 

 

 

 

90° Speed

 

Hub Assembly

 

Sensors

 

 

 

 

 

 

 

Sensor

Straight Speed

 

 

 

Clamping

 

 

 

Sleeve

Sensors

FIGURE 15 - WS-24WHEEL SPEED SENSOR INSTALLATION

Wheel Speed Sensor Wiring

Route sensor wiring coming out of the wheel ends away from moving brake components. Sensor wiring needs to be secured to the axle to prevent excess cable length and wiring damage. It is required that cable ties be installed to the sensor wire within 3 inches (76.2 mm) of the sensor head to provide strain relief.

Following the axle, the sensor wires must be attached along the length of the service brake hoses using cable ties with ultraviolet protection and secured every 6 to 8 inches (152 to 203 mm). Sufficient – but not excessive – cable length must be provided to permit full suspension travel and steering axle movement. Install wires so that they cannot touch rotating elements such as wheels, brake discs or drive shafts. Radiation protection may be necessary in the area of brake discs.

Bendix does not recommend using standard tie-wraps to secure wiring harnesses directly to rubber air lines. This may cause premature wiring failure from the pressure exerted on the wiring when air pressure is applied through the air line. Non-metallic hose clamps or bow-tie tie-wraps are preferred.

The use of grommets or other suitable protection is required whenever the cable must pass through metallic frame members.

All sensor wiring must utilize twisted pair wire, with approx- imately one to two twists per inch.

It is recommended that wires be routed straight out of a connector for a minimum of three inches before the wire is allowed to bend.

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Contents Introduction Standard Frame Standard Cab Premium Frame Premium CabCab ECUs ComponentsECU Mounting Frame ECUsEC-60CONTROLLERS with PLC Hardware ConfigurationsEC-60CONTROLLER Inputs EC-60CONTROLLER Outputs POWER-UP Sequence ABS Operation ATC Operation Engine Torque Limiting ETL with Smart ATC Traction Control Optional ATC Off-Road ModeDynamometer Test Mode Bendix Smart ATC Traction ControlABS Partial Shutdown System Configuration Reconfiguring EC-60ControllersECU Reconfiguration Removing the EC-60CONTROLLER Assembly Troubleshooting GeneralSafe Maintenance Practices Installing a NEW EC-60CONTROLLERECU Diagnostics Troubleshooting Blink Codes and Diagnostic ModesBlink Codes Active Diagnostic Trouble Code Mode Diagnostic ModesDiagnostic Modes Inactive Diagnostic Trouble Code ModeSystem Configuration Check Mode Clearing Active Diagnostic Trouble CodesReconfigure ECU Mode Features of the Bendix RDU Tool Using HAND-HELD or PC-BASED DiagnosticsBendix RDU Remote Diagnostic Unit Bendix RDU Reset FunctionNexiq Bendix Application Card Bendix ACom Diagnostics 3.0 SoftwareBendix RDU Communication Problems Bendix Technical Assistance TeamActive or Inactive Diagnostic Trouble Codes 1st Blink Code Go Here for Troubleshooting Tests NumberWheel Speed Sensors Troubleshooting Diagnostic Trouble Codes2nd Diagnostic Blink Trouble Code Code DescriptionConnector Pin Cab-mount ECU Looking into wire harness connectorFrame-mount ECU Looking into wire harness connector Speed Sensor Repair TestsPressure Modulator Valves Connector Pin PMV Location Pressure Modulator Valve Repair TestsTraction Control Valves Traction Control Valve Repair TestsPower Supply Tests Troubleshooting Diagnostic Trouble Codes Power SupplyConnector Pin Power Supply Test Connector Pin J1939 J1939 Low J1939 Troubleshooting TestsConnector Pin J1939 J1939 HighECU 2nd. Diagnostic Blink Trouble Code Code Description Troubleshooting Diagnostic Trouble Codes MiscellaneousRepair Information Retarder Relay Miscellaneous TroubleshootingABS Indicator Lamp PMV CommonsStandard Cab X2 Connector Pin Assignments Standard Cab X1 Connector Pin AssignmentsNot Used Standard Frame X1 Connector Pin Assignments Standard Frame X2 Connector Pin AssignmentsPremium Cab X3 Connector Pin Assignments Premium Cab X1 Connector Pin AssignmentsPremium Cab X2 Connector Pin Assignments Premium Cab Model EC-60Controller Premium Frame X2 Connector Pin Assignments Premium Frame X1 Connector Pin Assignments Premium Frame X3 Connector Pin Assignments Troubleshooting Wiring ABS/ATC WiringPlug Lock Crimp Tool ABS Component Connector Wire Wire Seal TerminalTerminal Troubleshooting Wiring Wheel Speed Sensor WiringTroubleshooting Standard Cab Wiring Schematic 4S/4M Drive Axle Steer AxleTroubleshooting Premium Cab Wiring Schematic 6S/6M Packard BPin CPin APinTroubleshooting Premium Cab Wiring Schematic 6S/5M Packard Pin B Pin C Pin aTroubleshooting Standard Frame Wiring Schematic 4S/4M Steer Axle Drive AxleTroubleshooting Premium Frame Wiring Schematic 6S/6M Premium Frame Wiring Schematic 6S/6MTroubleshooting Premium Frame Wiring Schematic 6S/5M Premium Frame Wiring Schematic 6S/5MGlossary SID FMI General J1587 J1587 Equivalents