BENDIX M-21-M-22 ANTILOCK MOD ASSY Wartungshandbuch

Service ManualTrucksGroup 59Anti-Lock Brake System (ABS)BendixVNL, VNMPV776-TSP29984/1

Group 59 Anti-Lock Brake System (Bendix) ToolsOther Special EquipmentThe following special equipment may be required for troubleshooting the Anti-Lock

Group 59 Anti-Lock Brake System (Bendix) ToolsW0001488J-42883 Sensor pin-out cable (Kent-Moore)W5000945Fluke 87 Digital Multimeter (John Fluke Mfg.Cor

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Group 59 Anti-Lock Brake System (Bendix) Design and FunctionDesign and FunctionSystem DescriptionThe Bendix Anti-Lock Braking System (ABS) is an elec-

Group 59 Anti-Lock Brake System (Bendix) Design and FunctionWhen the ECU senses that a wheel or set of wheels isabout to lock during braking, a signal

Group 59 Anti-Lock Brake System (Bendix) Design and FunctionTooth WheelThe tooth wheel is an alloy ring that resembles a gear. Itnormally has 100 teet

Group 59 Anti-Lock Brake System (Bendix) Design and FunctionSensorThe sensor is a magnetic inductor that allows current toflow through it from the ECU

Group 59 Anti-Lock Brake System (Bendix) Design and FunctionModulator ValveThe Bendix M-22 modulator valve is a high capacity airsolenoid valve. It ha

Group 59 Anti-Lock Brake System (Bendix) Design and FunctionABS Electronic Control Unit (ECU)The ECU is the brain of the ABS system. It receiveswheel

Group 59 Anti-Lock Brake System (Bendix) Design and FunctionThe ECU houses a magnetic switch that is used to erasefaults from memory once they have be

ForewordThe descriptions and service procedures contained in this manual are based on de-signs and methods studies carried out up to April 98.The prod

Group 59 Anti-Lock Brake System (Bendix) Design and FunctionElectricalFusesThe ABS circuit is fused through a 30–amp fuse on themain fuse panel which

Group 59 Anti-Lock Brake System (Bendix) Design and FunctionConnectorsThe ABS ECU connectors include one 18–pin and one30–pin Metri-pack 150 Series co

Group 59 Anti-Lock Brake System (Bendix) Design and FunctionInstrumentationABS Warning LightAn amber ABS warning light is provided in the instru-ment

Group 59 Anti-Lock Brake System (Bendix) Design and FunctionWheel Spin Indicating LightA yellow TCS warning light is provided on the instrumentcluster

Group 59 Anti-Lock Brake System (Bendix) Design and FunctionTraction Control System (TCS)The ABS on a vehicle may also be configured for trac-tion cont

Group 59 Anti-Lock Brake System (Bendix) Design and FunctionABS Fault DetectionDuring operation, the ABS continuously monitors thesystem for faulty co

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Group 59 Anti-Lock Brake System (Bendix) TroubleshootingTroubleshootingGeneral TroubleshootingThere are three methods for performing troubleshootingof

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingData Link Instrument Cluster — Diagnostic DisplayThe integrated multi-function display of the

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingDiagnosing Faults Using the Data Link DiagnosticsThe following is a list of the possible fault

ContentsGeneral ... 3Anti-Lock Brake System ...

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingTo view diagnostic messages for the ABS, perform thefollowing:1 Stop the engine.2 Turn the ign

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingMPSI Pro-Link 9000PERSONAL INJURY HAZARD! Before working on avehicle, set the parking brakes,

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingEC-16 (AL-6)The MPSI Pro-Link 9000 is available from Kent-Moore.The Bendix ABS cartridge is re

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingReadout WindowThe Pro-Link 9000 uses a liquid crystal display (LCD).The readout contains 4 dis

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingInstalling and Removing the MPC CartridgeWith the MPC cartridge installed in the Pro-Link tool

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingPower/Data CableThe data and power cable must be connected to the ve-hicle or an external 12–v

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingApplication CardsApplication cards are specific to the vehicle’s computersystem. Before beginni

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingDiagnosing Faults Using the Pro-Link 9000PERSONAL INJURY HAZARD! Before working on avehicle, s

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingUsing the Bendix ABS Application Card and MPC Cartridge (with EC-17/AL-7 ECU)Perform the follo

Group 59 Anti-Lock Brake System (Bendix) Troubleshooting8 The Diagnostic Codes menu lets you choose fromthe following diagnostic functions:•Active Fau

ABS Sensor Adjustment ... 63Front Axle Sensor Replacement ...

Group 59 Anti-Lock Brake System (Bendix) Troubleshooting14 Using the up or down arrow keys, scroll to the “ECUInformation” option.BENDIX ABS/ATCVERSIO

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingMPC Application Menu StructureThe application menu structure will assist you in locatingspecifi

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingUsing the Bendix ABS Cartridge (with EC-16/AL-6 ECU)Perform the following steps to determine f

Group 59 Anti-Lock Brake System (Bendix) Troubleshooting12 If there are any faults of the type selected, the Pro-Link 9000 will display them one at a

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingSystem Testing Using the Pro-Link 9000 (EC-16/AL-6)There are several tests that can be run on

Group 59 Anti-Lock Brake System (Bendix) Troubleshooting11 When the ABS selections menu appears, use thedown arrow key to scroll to TEST SYSTEM. Thenp

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingECU LEDsThe condition of specific ABS/TCS components is pro-vided by a series of LED’s on the s

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW500055345

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW500096746

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW500094047

Group 59 Anti-Lock Brake System (Bendix) GeneralGeneralAnti-Lock Brake SystemThis service information describes the design, function, operation, and s

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW5000959Note: For more detailed information, refer to Electrical Wiring and Circuit Diagrams48

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW5000620Note: For more detailed information, refer to Electrical Wiring and Circuit Diagrams49

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW5000621Note: For more detailed information, refer to Electrical Wiring and Circuit Diagrams50

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW5000622Note: For more detailed information, refer to Electrical Wiring and Circuit Diagrams51

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW5000960Note: For more detailed information, refer to Electrical Wiring and Circuit Diagrams52

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW5000961Note: For more detailed information, refer to Electrical Wiring and Circuit Diagrams53

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW5000625Note: For more detailed information, refer to Electrical Wiring and Circuit Diagrams54

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW5000626Note: For more detailed information, refer to Electrical Wiring and Circuit Diagrams55

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW5000968Note: For more detailed information, refer to Electrical Wiring and Circuit Diagrams56

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW5000963Note: For more detailed information, refer to Electrical Wiring and Circuit Diagrams57

Group 59 Anti-Lock Brake System (Bendix) General4 Clean brake parts and assemblies in the open air.During disassembly, carefully place all parts on th

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW500062958

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW5000964Note: For more detailed information, refer to Electrical Wiring and Circuit Diagrams59

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW5000965Note: For more detailed information, refer to Electrical Wiring and Circuit Diagrams60

Group 59 Anti-Lock Brake System (Bendix) TroubleshootingW5000966Note: For more detailed information, refer to Electrical Wiring and Circuit Diagrams61

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Group 59 Anti-Lock Brake System (Bendix) Service ProceduresService ProceduresABS Sensor AdjustmentSpecial tools: J-429421W5000941Slide the notched end

Group 59 Anti-Lock Brake System (Bendix) Service ProceduresFront Axle Sensor ReplacementRemovalPERSONAL INJURY HAZARD! Before working on avehicle, set

Group 59 Anti-Lock Brake System (Bendix) Service Procedures9Disconnect the sensor from the vehi-cle wiring at the connector closest tothe sensor.10Pul

Group 59 Anti-Lock Brake System (Bendix) Service ProceduresRear Axle Sensor ReplacementRemovalPERSONAL INJURY HAZARD! Before working on avehicle, set

Group 59 Anti-Lock Brake System (Bendix) Service Procedures3CAUTIONPotential sensor damage. DO NOT us a screwdriveror sharp instrument to insert senso

Group 59 Anti-Lock Brake System (Bendix) SpecificationsSpecificationsElectronic Control UnitW5000537Bendix ABS ECU, early modelW5000952Bendix ABS ECU, c

Group 59 Anti-Lock Brake System (Bendix) Service Procedures5Remove the valve mounting screwsand nuts.6Remove the valve.7Note the orientation of the fit

Group 59 Anti-Lock Brake System (Bendix) Service ProceduresRear Modulator Valve Replace-mentRemovalPERSONAL INJURY HAZARD! Before working on avehicle,

Group 59 Anti-Lock Brake System (Bendix) Service Procedures5W5000534Connect the supply line from the relayvalve to port 1 of the modulator valve.6Conn

Group 59 Anti-Lock Brake System (Bendix) Service ProceduresInstallation1Install the proper fittings on the valvein the original orientation. Use tape o

Group 59 Anti-Lock Brake System (Bendix) Service Procedures7Configure the ECU by holding a mag-net over the point labeled RESET onthe LED side of the E

Group 59 Anti-Lock Brake System (Bendix) System CheckSystem CheckFunction ChecksNote: Unless otherwise stated, there must be air pres-sure in the brak

Group 59 Anti-Lock Brake System (Bendix) System CheckTraction Control Valve Differential Pressure Check1 Apply 10 psi pressure to the traction control

Group 59 Anti-Lock Brake System (Bendix) System CheckSystem DiagramsABS System Diagram, VOLVO EngineW500100075

Group 59 Anti-Lock Brake System (Bendix) System CheckABS System Diagram, Vendor EngineW500099976

Group 59 Anti-Lock Brake System (Bendix) System CheckChassis and ECU ConnectorsCHASSIS PASS THRU 30–PIN CONNECTORCAVITY FUNCTIOND1 TRACTION CONTROL EN

Group 59 Anti-Lock Brake System (Bendix) SpecificationsModulator ValveW5000518Make, model ...

Group 59 Anti-Lock Brake System (Bendix) System CheckVendor engine ECU connectorsVOLVO ENGINE ECU (78–PIN CHASSIS PASS THRU) CONNECTORCAVITY FUNCTIONC

FeedbackOne of our objectives is that workshop personnel should have access to correct andappropriate service manuals where it concerns fault tracing,

Volvo Trucks North America, Inc.P.O. Box 26115, Greensboro, NC 27402-6115Volvo Trucks Canada, Ltd.6490 Vipond Drive, Mississauga, Ontario L5T 1W8http:

Group 59 Anti-Lock Brake System (Bendix) ToolsToolsSpecial ToolsThe following special tools may be required for work on the Anti-Lock Braking System.T